Fix GUI instance counts and launcher tmp paths

Make launcher a Windows GUI app
Use windowsgui in release workflow
2026-06-25 02:36:55 +09:00 · 2026-06-25 00:09:58 +09:00 · 2026-06-25 00:02:41 +09:00 · 2026-06-25 00:00:33 +09:00 · 2026-06-24 03:08:30 +09:00 · 2026-06-24 02:38:06 +09:00
75 changed files with 7754 additions and 126 deletions
--- a/.gitea/workflows/build-windows-exe.yml
+++ b/.gitea/workflows/build-windows-exe.yml
@@ -0,0 +1,80 @@
+name: build-windows-exe
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        shell: bash
+        run: |
+          git clone --depth 1 --branch "${GITHUB_REF_NAME}" https://git.vrcworldtour.com/every_holiday/VRCWT-OSC.git .
+
+      - name: Install Go
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y golang-go
+          go version
+
+      - name: Test
+        shell: bash
+        run: |
+          cd VRWT_Tool/VRC_OSC
+          GO111MODULE=on go test ./...
+
+      - name: Build executables
+        shell: bash
+        run: |
+          cd VRWT_Tool/VRC_OSC
+          mkdir -p dist
+          VERSION="${GITHUB_REF_NAME}"
+          BUILD_TIME="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
+          GO111MODULE=on GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-H windowsgui -X vrc_osc_go/internal/buildinfo.Version=${VERSION} -X vrc_osc_go/internal/buildinfo.BuildTime=${BUILD_TIME}" -o dist/vrc_osc.exe ./cmd/vrc_osc
+          GO111MODULE=on GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-H windowsgui -X vrc_osc_go/internal/buildinfo.Version=${VERSION} -X vrc_osc_go/internal/buildinfo.BuildTime=${BUILD_TIME}" -o dist/vrc_osc_launcher.exe ./cmd/vrc_osc_launcher
+          GO111MODULE=on GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-H windowsgui -X vrc_osc_go/internal/buildinfo.Version=${VERSION} -X vrc_osc_go/internal/buildinfo.BuildTime=${BUILD_TIME}" -o dist/vrc_osc_gui.exe ./cmd/vrc_osc_gui
+          GO111MODULE=on GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "-X vrc_osc_go/internal/buildinfo.Version=${VERSION} -X vrc_osc_go/internal/buildinfo.BuildTime=${BUILD_TIME}" -o dist/vrwt_tool.exe ./cmd/vrwt_tool
+
+      - name: Package executables
+        shell: bash
+        run: |
+          cd VRWT_Tool/VRC_OSC
+          cp config/config.example.toml dist/config.example.toml
+          cp config/secrets.example.toml dist/secrets.example.toml
+          cp config/guests.example.txt dist/guests.example.txt
+          (cd dist && zip -r vrc_osc-windows.zip vrc_osc.exe vrc_osc_launcher.exe vrc_osc_gui.exe vrwt_tool.exe config.example.toml secrets.example.toml guests.example.txt)
+
+      - name: Create Release
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_BASE_URL: ${{ secrets.GITEA_BASE_URL }}
+          TAG_NAME: ${{ github.ref_name }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          api="${GITEA_BASE_URL:-https://git.vrcworldtour.com}/api/v1"
+          owner_repo="every_holiday/VRCWT-OSC"
+          release_json=$(curl -fsSL \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Content-Type: application/json" \
+            "${api}/repos/${owner_repo}/releases/tags/${TAG_NAME}" || true)
+          if [ -n "${release_json}" ]; then
+            release_id=$(printf '%s' "${release_json}" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')
+          else
+            release_json=$(curl -fsSL -X POST \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              -H "Content-Type: application/json" \
+              -d "{\"tag_name\":\"${TAG_NAME}\",\"name\":\"${TAG_NAME}\",\"draft\":false,\"prerelease\":false}" \
+              "${api}/repos/${owner_repo}/releases")
+            release_id=$(printf '%s' "${release_json}" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')
+          fi
+          asset_path="VRWT_Tool/VRC_OSC/dist/vrc_osc-windows.zip"
+          curl -fsSL -X POST \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -F "attachment=@${asset_path}" \
+            "${api}/repos/${owner_repo}/releases/${release_id}/assets?name=vrc_osc-windows.zip"
--- a/EXE.md
+++ b/EXE.md
@@ -1,25 +1,33 @@
-# exe Packaging
+# Windows Release Packaging

 ## Build

+Release の zip は Gitea Actions で作ります。
+
 ```powershell
-.\build_exe.ps1
+go build -ldflags="-H windowsgui" -o .\dist\vrc_osc.exe ./cmd\vrc_osc
+go build -ldflags="-H windowsgui" -o .\dist\vrc_osc_launcher.exe ./cmd\vrc_osc_launcher
+go build -o .\dist\vrwt_tool.exe ./cmd\vrwt_tool
 ```

-This uses `PyInstaller` and writes the result to `dist\vrc_osc\`.
+## 起動

-## Distribution Layout
+通常は `vrc_osc_launcher.exe` を起動してください。

-Place these next to `vrc_osc.exe`:
+- 起動時に最新 Release をチェック
+- 新しい版があれば自動更新
+- 更新後に本体を起動

- `config\config.toml`
- `config\secrets.toml`
- `config\guests.txt`
+`vrc_osc.exe` を直接起動した場合は更新チェックしません。
+
+## 配置
+
+Release zip を展開したフォルダに以下を置きます。
+
+- `vrc_osc.exe`
+- `vrc_osc_launcher.exe`
+- `vrwt_tool.exe`
+- `config\`
 - `runtime\`

-`runtime\` is created on startup if it does not exist.
-
-## Notes
-
- `src\common\project_paths.py` resolves paths relative to the exe when frozen.
- Keep `config\` beside the exe. The app does not look inside the PyInstaller temp directory for persistent files.
+`runtime\` は起動時に作られます。
--- a/README.md
+++ b/README.md
@@ -1,133 +1,73 @@
 # VRC_OSC

-VRC_OSC は、VRChat の状態を見て Discord やログ連携を行うためのツールです。
+VRChat のログ監視、Discord ミュート連携、OCR、同意リスト生成をまとめたツールです。

-一番の使い方は、VRChat の `ExMenu` から操作することです。
-`ExMenu` は VRChat のメニュー画面に出る、追加の操作メニューです。
+## 主な機能

-## できること
-
- VRChat のログを見て Discord に通知する
-  - 変更があった部分だけを差分で送る
- Discord のミュートを VRChat 側の操作に合わせて切り替える
- VRChat 画面を読み取って OCR する
- OCR した文字を翻訳してコピーする
-
-## 画面イメージ
-
-### ExMenu
-
-VRChat のメニュー画面から、このツールの機能を操作します。
-
-![ExMenu 1](doc/ExMenu1.png)
-
-![ExMenu 2](doc/ExMenu2.png)
-
-### VRC Log
-
-VRChat のログ確認や通知の流れは、次のようなイメージです。
-
-![VRC Log](doc/VRC_Log.png)
-
-## 使い方
-
-1. 必要な設定ファイルを用意します。
-2. ツールを起動します。
-3. VRChat を開きます。
-4. VRChat の `ExMenu` から必要な機能を選びます。
-
-### Discord のミュート連動
-
-VRChat 側で特定の操作が行われたときに、Discord のミュート状態を切り替えます。
-通話中に VRChat を使うとき、Discord の音声操作を手で切り替える手間を減らすための機能です。
-
-### OCR と翻訳
-
-VRChat 画面の文字を読み取って、必要に応じて翻訳します。
-見た文字や翻訳結果はコピーできるので、内容をそのまま使いやすくなります。
+- VRChat の入退出ログを監視して `join / leave` を出力
+- Discord のミュート切り替え
+- OCR で画面文字を取得
+- 同意フォーム用の JSON 生成とログ抽出
+- Gitea Release からの自動更新

 ## 起動方法

-PowerShell から起動する場合:
+配布 zip を展開したら、まず `vrc_osc_launcher.exe` を起動してください。

 ```powershell
-bin\vrc_osc.ps1
+vrc_osc_launcher.exe
 ```

-Python から直接起動する場合:
+launcher は起動時に最新 Release を確認します。新しい版があれば自動で更新してから本体を起動します。
+
+本体を直接起動することもできます。

 ```powershell
-python src\app.py
+vrc_osc.exe
 ```

-## 事前準備
+ただし、この場合は自動更新は走りません。

-依存関係を入れます。
+## 配布物

-```powershell
-python -m pip install -r requirements.txt
-```
+Release の zip には次のファイルが入ります。

-## 設定ファイル
+- `vrc_osc.exe`
+- `vrc_osc_launcher.exe`
+- `vrwt_tool.exe`
+- `config.example.toml`
+- `secrets.example.toml`
+- `guests.example.txt`

-設定は `config/` に置きます。
+## 設定
+
+設定ファイルは exe の横の `config/` に置きます。

 - `config/config.toml`
 - `config/secrets.toml`
 - `config/guests.txt`

-サンプルはそれぞれ `*.example.*` を使って作成できます。
+最初は各 `*.example.*` をコピーして使ってください。

-## 初期セットアップ
+## Release 更新

-最初は、`config/` のサンプルファイルを実ファイルにしてから中身を埋めます。
+自動更新は Gitea の Release を参照します。

-1. `config/config.example.toml` を `config/config.toml` にコピーします。
-2. `config/secrets.example.toml` を `config/secrets.toml` にコピーします。
-3. `config/guests.example.txt` を `config/guests.txt` にコピーします。
-4. `config/config.toml` の `self.name` を自分の VRChat 表示名にします。
-5. `config/secrets.toml` の `discord.webhook_url` を設定します。
-6. `config/secrets.toml` の `vrchat.username` と `vrchat.password` を設定します。
-7. `config/guests.txt` に、あらかじめ guest として見たい参加者名を 1 行ずつ書きます。
-8. 自分の名前も guest 扱いしたい場合は、`guests.txt` に自分の名前も 1 行追加します。
+- 更新元: `https://git.vrcworldtour.com/every_holiday/VRCWT-OSC/releases`
+- 対象 asset: `vrc_osc-windows.zip`

-`guests.txt` は、例として次のように書きます。
+## 開発時のビルド

-```text
-GuestUserA
-GuestUserB
-YourNameHere
+```powershell
+go test ./...
+go build -ldflags="-H windowsgui" -o .\dist\vrc_osc.exe ./cmd/vrc_osc
+go build -ldflags="-H windowsgui" -o .\dist\vrc_osc_launcher.exe ./cmd/vrc_osc_launcher
+go build -o .\dist\vrwt_tool.exe ./cmd\vrwt_tool
 ```

-## よく使う設定
-
- `discord.webhook_url`
-  - Discord に通知を送るための Webhook URL
- `vrchat.username`
-  - VRChat のアカウント名
- `vrchat.password`
-  - VRChat のパスワード
- `staff.names`
-  - スタッフとして扱う名前
- `guest.file`
-  - guest 名簿のファイル
-
-## 補足
-
-この README は、まず使い方が分かることを優先して簡単にまとめています。
-細かい内部仕様が必要な場合は、ソースコードと `config/*.example.*` を見てください。
-
-## 生成されるログ
+## ログ

 - `runtime/runtime.log`
-  - 通常の実行ログ
 - `runtime/join_leave.log`
-  - join / leave だけを抜き出したログ
 - `runtime/latest_ocr.png`
 - `runtime/latest_screenshot.png`
-
-## 詳しい資料
-
- [設計書](doc/design.md)
- [シーケンス図](doc/sequence.md)
- [ワークフロー](doc/workflow.md)
--- a/VRWT_Tool/.gitea/workflows/build-windows-exe.yml
+++ b/VRWT_Tool/.gitea/workflows/build-windows-exe.yml
@@ -0,0 +1,50 @@
+name: build-windows-exe
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        shell: pwsh
+        run: |
+          choco install golang --version=1.22.0 -y --no-progress
+          $env:PATH = "C:\Program Files\Go\bin;$env:PATH"
+          go version
+
+      - name: Test
+        working-directory: VRC_OSC
+        shell: pwsh
+        run: |
+          $env:PATH = "C:\Program Files\Go\bin;$env:PATH"
+          go test ./...
+
+      - name: Build executables
+        working-directory: VRC_OSC
+        shell: pwsh
+        run: |
+          $env:PATH = "C:\Program Files\Go\bin;$env:PATH"
+          go build -o dist\vrc_osc.exe ./cmd/vrc_osc
+          go build -o dist\vrwt_tool.exe ./cmd/vrwt_tool
+
+      - name: Package executables
+        working-directory: VRC_OSC
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Force -Path dist | Out-Null
+          Copy-Item config\config.example.toml dist\config.example.toml
+          Copy-Item config\secrets.example.toml dist\secrets.example.toml
+          Copy-Item config\guests.example.txt dist\guests.example.txt
+          Compress-Archive -Path dist\vrc_osc.exe,dist\vrwt_tool.exe,dist\config.example.toml,dist\secrets.example.toml,dist\guests.example.txt -DestinationPath dist\vrc_osc-windows.zip -Force
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: vrc_osc-windows
+          path: VRC_OSC/dist/vrc_osc-windows.zip
--- a/VRWT_Tool/VRC_OSC/.gitignore
+++ b/VRWT_Tool/VRC_OSC/.gitignore
@@ -0,0 +1,13 @@
+__pycache__/
+*.py[cod]
+
+config/config.toml
+config/secrets.toml
+config/guests.txt
+runtime/
+.vrchat_cookie.txt
+src/.vrchat_cookie.txt
+
+*.bak
+*.bak_*
+backup_*/
--- a/VRWT_Tool/VRC_OSC/assets/icon.ico
+++ b/VRWT_Tool/VRC_OSC/assets/icon.ico
--- a/VRWT_Tool/VRC_OSC/assets/icon.png
+++ b/VRWT_Tool/VRC_OSC/assets/icon.png
--- a/VRWT_Tool/VRC_OSC/bin/vrc_osc.ps1
+++ b/VRWT_Tool/VRC_OSC/bin/vrc_osc.ps1
@@ -0,0 +1,7 @@
+$ErrorActionPreference = "Stop"
+
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$RootDir = Resolve-Path (Join-Path $ScriptDir "..")
+$EntryPoint = Join-Path $RootDir "bin\vrc_osc.py"
+
+python $EntryPoint
--- a/VRWT_Tool/VRC_OSC/cmd/vrc_osc/main.go
+++ b/VRWT_Tool/VRC_OSC/cmd/vrc_osc/main.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"vrc_osc_go/internal/app"
+)
+
+func main() {
+	var configPath string
+	var mode string
+	var noGUI bool
+	flag.StringVar(&configPath, "config", "config/config.toml", "path to config.toml")
+	flag.StringVar(&mode, "mode", "", "generate-json or extract-log")
+	flag.BoolVar(&noGUI, "no-gui", false, "do not launch the GUI companion")
+	flag.Parse()
+
+	if mode == "" && !noGUI {
+		launchGUI()
+	}
+
+	if err := app.Run(configPath, mode); err != nil {
+		log.SetOutput(os.Stderr)
+		log.Fatalf("vrc_osc_go: %v", err)
+	}
+}
+
+func launchGUI() {
+	exe, err := os.Executable()
+	if err != nil {
+		return
+	}
+	gui := filepath.Join(filepath.Dir(exe), "vrc_osc_gui.exe")
+	if _, err := os.Stat(gui); err != nil {
+		return
+	}
+	_ = exec.Command(gui).Start()
+}
--- a/VRWT_Tool/VRC_OSC/cmd/vrc_osc_gui/main.go
+++ b/VRWT_Tool/VRC_OSC/cmd/vrc_osc_gui/main.go
@@ -0,0 +1,198 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+)
+
+func runtimeDir() string {
+	exe, err := os.Executable()
+	if err != nil {
+		return "runtime"
+	}
+	return filepath.Join(filepath.Dir(exe), "runtime")
+}
+
+func main() {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", handleIndex)
+	mux.HandleFunc("/api/state", handleState)
+
+	addr := "127.0.0.1:18181"
+	go openBrowser("http://" + addr)
+	log.Printf("gui listening on http://%s", addr)
+	log.Fatal(http.ListenAndServe(addr, mux))
+}
+
+func handleIndex(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	html := `<!doctype html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta http-equiv="refresh" content="3">
+  <title>VRTW_Tool</title>
+  <style>
+    body{font-family:sans-serif;background:#111;color:#eee;margin:20px}
+    .grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
+    .card{background:#1b1b1b;border:1px solid #333;border-radius:12px;padding:16px}
+    table{width:100%;border-collapse:collapse}
+    td,th{border-bottom:1px solid #333;padding:6px;text-align:left}
+    th{cursor:pointer;user-select:none}
+    th:hover{color:#8ff}
+    .on{color:#5ff28f}.off{color:#ff8a8a}
+  </style>
+</head>
+<body>
+  <h1>VRTW_Tool</h1>
+  <div id="root">loading...</div>
+  <script>
+    const sortKey = 'vrc_osc_gui_sort';
+    const defaultSort = { key: 'name', dir: 1 };
+    let sortState = (() => {
+      try {
+        const raw = localStorage.getItem(sortKey);
+        return raw ? JSON.parse(raw) : defaultSort;
+      } catch (_) {
+        return defaultSort;
+      }
+    })();
+
+    function setSort(key) {
+      if (sortState.key === key) {
+        sortState.dir = sortState.dir * -1;
+      } else {
+        sortState = { key: key, dir: 1 };
+      }
+      localStorage.setItem(sortKey, JSON.stringify(sortState));
+      load();
+    }
+
+    function compareGuests(a, b) {
+      if (sortState.key === 'name') {
+        const v = a.name.localeCompare(b.name, 'ja');
+        return v * sortState.dir;
+      }
+      if (sortState.key === 'presence') {
+        const av = Number(a.present);
+        const bv = Number(b.present);
+        if (av !== bv) {
+          return (bv - av) * sortState.dir;
+        }
+        return a.name.localeCompare(b.name, 'ja');
+      }
+      if (sortState.key === 'status') {
+        const av = Number(!a.present);
+        const bv = Number(!b.present);
+        if (av !== bv) {
+          return (av - bv) * sortState.dir;
+        }
+        return a.name.localeCompare(b.name, 'ja');
+      }
+      return a.name.localeCompare(b.name, 'ja');
+    }
+
+    async function load(){
+      const r = await fetch('/api/state');
+      const j = await r.json();
+      const guests = [...j.guests].sort(compareGuests);
+      const presentCount = guests.filter(g => g.present).length;
+      const rows = guests.map(g => {
+        const status = g.present ? '在席' : (g.absent_for || '1分未満');
+        return '<tr><td>' + esc(g.name) + '</td><td>' + esc(status) + '</td></tr>';
+      }).join('');
+      document.getElementById('root').innerHTML =
+        '<div class="grid">' +
+          '<div class="card">' +
+            '<h2>状態</h2>' +
+            '<p>World: ' + esc(j.world || '') + '</p>' +
+            '<p>Discord: <span class="' + (j.discord_muted ? 'on' : 'off') + '">' + (j.discord_muted ? 'Muted' : 'Unmuted') + '</span></p>' +
+            '<p>OCR: ' + esc(j.ocr || '') + '</p>' +
+            '<p>翻訳: ' + esc(j.translate || '未実装') + '</p>' +
+          '</div>' +
+          '<div class="card">' +
+            '<h2>ゲスト (' + presentCount + '/' + j.guest_count + ')</h2>' +
+            '<table>' +
+              '<tr>' +
+                '<th data-sort="name">名前' + sortMark('name') + '</th>' +
+                '<th data-sort="presence">在席' + sortMark('presence') + '</th>' +
+              '</tr>' +
+              rows +
+            '</table>' +
+          '</div>' +
+        '</div>';
+      document.querySelectorAll('th[data-sort]').forEach(function(el) {
+        el.style.cursor = 'pointer';
+        el.onclick = function() {
+          setSort(el.getAttribute('data-sort'));
+        };
+      });
+    }
+
+    function sortMark(key) {
+      if (sortState.key !== key) return '';
+      return sortState.dir > 0 ? ' ▲' : ' ▼';
+    }
+
+    function esc(s){ return (s || '').replace(/[&<>"]/g, function(m){ return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;'}[m]; }); }
+    setInterval(load, 3000);
+    load();
+  </script>
+</body>
+</html>`
+	_, _ = fmt.Fprint(w, html)
+}
+
+func handleState(w http.ResponseWriter, r *http.Request) {
+	statePath := filepath.Join(runtimeDir(), "state.json")
+	body, err := os.ReadFile(statePath)
+	if err != nil {
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"world":         "",
+			"discord_muted": false,
+			"ocr":           "",
+			"translate":     "",
+			"guests":        []any{},
+			"guest_count":   0,
+			"error":         err.Error(),
+		})
+		return
+	}
+	var state map[string]any
+	if err := json.Unmarshal(body, &state); err != nil {
+		_ = json.NewEncoder(w).Encode(map[string]any{"error": err.Error()})
+		return
+	}
+	guests := loadGuestSnapshot()
+	state["guests"] = guests
+	state["guest_count"] = len(guests)
+	_ = json.NewEncoder(w).Encode(state)
+}
+
+func loadGuestSnapshot() []map[string]any {
+	statePath := filepath.Join(runtimeDir(), "guest_snapshot.json")
+	body, err := os.ReadFile(statePath)
+	if err != nil {
+		return []map[string]any{}
+	}
+	var guests []map[string]any
+	if err := json.Unmarshal(body, &guests); err != nil {
+		return []map[string]any{}
+	}
+	return guests
+}
+
+func openBrowser(url string) {
+	switch runtime.GOOS {
+	case "windows":
+		_ = exec.Command("cmd", "/c", "start", "", url).Start()
+	default:
+		_ = exec.Command("xdg-open", url).Start()
+	}
+}
--- a/VRWT_Tool/VRC_OSC/cmd/vrc_osc_launcher/main.go
+++ b/VRWT_Tool/VRC_OSC/cmd/vrc_osc_launcher/main.go
@@ -0,0 +1,40 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"path/filepath"
+
+	"vrc_osc_go/internal/buildinfo"
+	"vrc_osc_go/internal/common"
+	"vrc_osc_go/internal/update"
+)
+
+func main() {
+	var baseURL string
+	var ownerRepo string
+	var assetName string
+	flag.StringVar(&baseURL, "base-url", "https://git.vrcworldtour.com", "Gitea base URL")
+	flag.StringVar(&ownerRepo, "repo", "every_holiday/VRCWT-OSC", "owner/repo")
+	flag.StringVar(&assetName, "asset", "vrc_osc-windows.zip", "release asset name")
+	flag.Parse()
+
+	client := &update.Client{BaseURL: baseURL}
+	mgr := &update.Manager{
+		Client:       client,
+		OwnerRepo:    ownerRepo,
+		AssetName:    assetName,
+		CurrentLabel: buildinfo.Version,
+	}
+	if _, err := mgr.CheckAndUpdate(); err != nil {
+		log.Printf("auto update skipped: %v", err)
+	}
+	exe := filepath.Join(common.RootDir(), "vrc_osc.exe")
+	if _, err := os.Stat(exe); err != nil {
+		log.Fatalf("missing exe: %v", err)
+	}
+	if err := update.Launch(exe, os.Args[1:]); err != nil {
+		log.Fatalf("launch failed: %v", err)
+	}
+}
--- a/VRWT_Tool/VRC_OSC/cmd/vrwt_tool/main.go
+++ b/VRWT_Tool/VRC_OSC/cmd/vrwt_tool/main.go
@@ -0,0 +1,33 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+
+	"vrc_osc_go/internal/consenttool"
+)
+
+func main() {
+	var cfgPath string
+	var mode string
+
+	flag.StringVar(&cfgPath, "config", "config/consent.toml", "path to consent tool config")
+	flag.StringVar(&mode, "mode", "", "generate-json or extract-log")
+	flag.Parse()
+
+	if mode == "" && flag.NArg() > 0 {
+		mode = flag.Arg(0)
+	}
+
+	if mode == "" {
+		fmt.Fprintln(os.Stderr, "missing mode: generate-json or extract-log")
+		os.Exit(2)
+	}
+
+	if err := consenttool.Run(cfgPath, mode); err != nil {
+		log.SetOutput(os.Stderr)
+		log.Fatalf("vrwt_tool: %v", err)
+	}
+}
--- a/VRWT_Tool/VRC_OSC/config/config.example.toml
+++ b/VRWT_Tool/VRC_OSC/config/config.example.toml
@@ -0,0 +1,22 @@
+[self]
+name = ""
+
+[staff]
+names = []
+
+[guest]
+file = "config/guests.txt"
+
+[notice]
+missing_count = 0
+
+[ocr.crop]
+left = 0.05
+top = 0.35
+right = 0.95
+bottom = 0.95
+
+[ocr]
+preprocess = true
+scale = 1.5
+use_angle_cls = false
--- a/VRWT_Tool/VRC_OSC/config/guests.example.txt
+++ b/VRWT_Tool/VRC_OSC/config/guests.example.txt
@@ -0,0 +1,3 @@
+GuestUserA
+GuestUserB
+GuestUserC
--- a/VRWT_Tool/VRC_OSC/config/secrets.example.toml
+++ b/VRWT_Tool/VRC_OSC/config/secrets.example.toml
@@ -0,0 +1,6 @@
+[discord]
+webhook_url = ""
+
+[vrchat]
+username = ""
+password = ""
--- a/VRWT_Tool/VRC_OSC/go.mod
+++ b/VRWT_Tool/VRC_OSC/go.mod
@@ -0,0 +1,4 @@
+module vrc_osc_go
+
+go 1.22
+
--- a/VRWT_Tool/VRC_OSC/internal/app/app.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/app.go
@@ -0,0 +1,75 @@
+package app
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+	"time"
+
+	"vrc_osc_go/internal/config"
+	"vrc_osc_go/internal/consenttool"
+	"vrc_osc_go/internal/osc"
+)
+
+type discordMuteState struct {
+	mu            sync.Mutex
+	muted         bool
+	buttonPressed bool
+	lastAction    time.Time
+}
+
+func Run(configPath string, mode string) error {
+	if mode != "" {
+		return consenttool.Run(configPath, mode)
+	}
+
+	cfg, err := config.Load(configPath)
+	if err != nil {
+		return err
+	}
+	InitGuestTracker(NewGuestTracker(cfg.VrcLog.GuestNames))
+	log.Printf("vrc_osc_go starting osc=%s:%d config=%s", cfg.OSC.Host, cfg.OSC.Port, configPath)
+
+	server := osc.NewServer(cfg.OSC.Host, cfg.OSC.Port)
+	discordState := &discordMuteState{muted: true}
+	SetDiscordMuted(true)
+	server.Map("DiscordSend", func(_ string, args []osc.Value) error {
+		log.Printf("received DiscordSend args=%+v", args)
+		if err := handleDiscordSend(discordState, args); err != nil {
+			log.Printf("discord mute failed: %v", err)
+			return err
+		}
+		SetDiscordMuted(discordState.muted)
+		return nil
+	})
+	server.Map("ocrEnabled", func(_ string, args []osc.Value) error {
+		log.Printf("received ocrEnabled args=%+v", args)
+		if err := runPythonOcrFromScreen(); err != nil {
+			log.Printf("ocr failed: %v", err)
+			return err
+		}
+		return nil
+	})
+
+	errCh := make(chan error, 1)
+	go func() {
+		log.Printf("osc server listening on %s:%d", cfg.OSC.Host, cfg.OSC.Port)
+		errCh <- server.Serve()
+	}()
+	go watchVrchatLog()
+	startSelfMonitor(cfg, discordState)
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
+	select {
+	case err := <-errCh:
+		log.Printf("osc server stopped: %v", err)
+		return err
+	case <-sigCh:
+		log.Printf("shutdown signal received")
+		server.Close()
+		return nil
+	}
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/discord.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/discord.go
@@ -0,0 +1,84 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+)
+
+func pressDiscordMuteHotkey() error {
+	script := `
+$ErrorActionPreference = "Stop"
+
+function Get-DiscordWindows {
+  $windows = foreach ($p in Get-Process) {
+    $title = ($p.MainWindowTitle | Out-String).Trim()
+    if (-not $title) { continue }
+    if (-not $title.ToLower().Contains('discord')) { continue }
+    $p
+  }
+  if (-not $windows) { return @() }
+  return $windows
+}
+
+function Get-BestDiscordWindow {
+  $windows = Get-DiscordWindows
+  if (-not $windows -or $windows.Count -eq 0) { return $null }
+
+  $browserKeywords = @('google chrome', 'microsoft edge', 'mozilla firefox', 'brave', 'opera')
+  $ranked = $windows | Sort-Object {
+    $title = ($_.MainWindowTitle | Out-String).Trim().ToLower()
+    $score = 0
+    foreach ($keyword in $browserKeywords) {
+      if ($title.Contains($keyword)) { $score += 10 }
+    }
+    if ($title -match '^\(\d+\)\s*discord') { $score += 20 }
+    if ($title.Contains('discord')) { $score += 5 }
+    $score
+  } -Descending
+
+  return $ranked | Select-Object -First 1
+}
+
+function Get-VRChatWindow {
+  $windows = Get-Process | Where-Object {
+    $_.MainWindowTitle -and (
+      $_.MainWindowTitle -eq 'VRChat' -or $_.MainWindowTitle.ToLower().StartsWith('vrchat ')
+    )
+  }
+  if (-not $windows) { return $null }
+  return $windows | Sort-Object { $_.MainWindowHandle } -Descending | Select-Object -First 1
+}
+
+function Activate-Window($p) {
+  if ($null -eq $p) { return }
+  $wshell = New-Object -ComObject WScript.Shell
+  try { $null = $wshell.AppActivate($p.Id) } catch {}
+  Start-Sleep -Milliseconds 200
+}
+
+$discord = Get-BestDiscordWindow
+if ($null -eq $discord) { exit 2 }
+
+Activate-Window $discord
+$wshell = New-Object -ComObject WScript.Shell
+Start-Sleep -Milliseconds 200
+$wshell.SendKeys('^+m')
+Start-Sleep -Milliseconds 200
+
+$vrchat = Get-VRChatWindow
+if ($null -ne $vrchat) {
+  Activate-Window $vrchat
+}
+`
+
+	cmd := exec.Command("powershell", "-NoProfile", "-ExecutionPolicy", "Bypass", "-Command", script)
+	out, err := cmd.CombinedOutput()
+	if len(out) > 0 {
+		log.Printf("discord mute output: %s", string(out))
+	}
+	if err != nil {
+		return fmt.Errorf("discord mute failed: %w", err)
+	}
+	return nil
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/discord_mute.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/discord_mute.go
@@ -0,0 +1,89 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"vrc_osc_go/internal/osc"
+)
+
+const discordDebounce = 300 * time.Millisecond
+
+func handleDiscordSend(state *discordMuteState, args []osc.Value) error {
+	state.mu.Lock()
+	defer state.mu.Unlock()
+
+	if len(args) == 0 {
+		return fmt.Errorf("OSC args is empty")
+	}
+	isPressed, err := toBool(args[0])
+	if err != nil {
+		return err
+	}
+
+	now := time.Now()
+	if !state.lastAction.IsZero() && now.Sub(state.lastAction) < discordDebounce {
+		return nil
+	}
+
+	if isPressed && !state.buttonPressed {
+		state.buttonPressed = true
+		if state.muted {
+			log.Printf("ACTION VRChat button pressed -> Discord unmute hotkey")
+			if err := pressDiscordMuteHotkey(); err != nil {
+				return err
+			}
+			state.muted = false
+			SetDiscordMuted(state.muted)
+			state.lastAction = now
+		} else {
+			log.Printf("INFO already unmuted")
+		}
+		return nil
+	}
+
+	if !isPressed && state.buttonPressed {
+		state.buttonPressed = false
+		if !state.muted {
+			log.Printf("ACTION VRChat button released -> Discord mute hotkey")
+			if err := pressDiscordMuteHotkey(); err != nil {
+				return err
+			}
+			state.muted = true
+			SetDiscordMuted(state.muted)
+			state.lastAction = now
+		} else {
+			log.Printf("INFO already muted")
+		}
+	}
+
+	return nil
+}
+
+func toBool(v osc.Value) (bool, error) {
+	switch v.Type {
+	case 'T':
+		return true, nil
+	case 'F':
+		return false, nil
+	case 'i':
+		return v.Int != 0, nil
+	case 'f':
+		return v.Float != 0, nil
+	case 's':
+		switch strings.ToLower(strings.TrimSpace(v.Str)) {
+		case "true", "1", "on", "yes":
+			return true, nil
+		case "false", "0", "off", "no":
+			return false, nil
+		default:
+			return false, fmt.Errorf("unsupported OSC value: %q", v.Str)
+		}
+	case 0:
+		return false, fmt.Errorf("unsupported OSC value")
+	default:
+		return false, fmt.Errorf("unsupported OSC type: %q", v.Type)
+	}
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/guest_status.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/guest_status.go
@@ -0,0 +1,136 @@
+package app
+
+import (
+	"fmt"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sort"
+	"sync"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+type GuestStatus struct {
+	Name      string    `json:"name"`
+	Present   bool      `json:"present"`
+	LastJoin  time.Time `json:"last_join"`
+	LastLeave time.Time `json:"last_leave"`
+	AbsentFor string    `json:"absent_for"`
+}
+
+type GuestTracker struct {
+	mu      sync.RWMutex
+	current string
+	items   map[string]*GuestStatus
+}
+
+func NewGuestTracker(names []string) *GuestTracker {
+	items := make(map[string]*GuestStatus, len(names))
+	for _, name := range names {
+		items[name] = &GuestStatus{Name: name}
+	}
+	return &GuestTracker{items: items}
+}
+
+func (t *GuestTracker) SetCurrentInstance(label string) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.current = label
+}
+
+func (t *GuestTracker) CurrentInstance() string {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	return t.current
+}
+
+func (t *GuestTracker) MarkJoin(name string, at time.Time) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	s := t.ensure(name)
+	s.Present = true
+	s.LastJoin = at
+	s.AbsentFor = ""
+	_ = t.persistLocked()
+}
+
+func (t *GuestTracker) MarkLeave(name string, at time.Time) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	s := t.ensure(name)
+	s.Present = false
+	s.LastLeave = at
+	if !s.LastJoin.IsZero() {
+		s.AbsentFor = humanSince(at)
+	}
+	_ = t.persistLocked()
+}
+
+func (t *GuestTracker) Snapshot(now time.Time) []GuestStatus {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	out := make([]GuestStatus, 0, len(t.items))
+	for _, s := range t.items {
+		cp := *s
+		if !cp.Present && !cp.LastLeave.IsZero() {
+			cp.AbsentFor = humanSince(cp.LastLeave, now)
+		}
+		out = append(out, cp)
+	}
+	sort.Slice(out, func(i, j int) bool { return out[i].Name < out[j].Name })
+	return out
+}
+
+func (t *GuestTracker) persistLocked() error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	snapshot := make([]GuestStatus, 0, len(t.items))
+	for _, s := range t.items {
+		cp := *s
+		snapshot = append(snapshot, cp)
+	}
+	f, err := os.Create(filepath.Join(dir, "guest_snapshot.json"))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.SetIndent("", "  ")
+	return enc.Encode(snapshot)
+}
+
+func (t *GuestTracker) ensure(name string) *GuestStatus {
+	if s, ok := t.items[name]; ok {
+		return s
+	}
+	s := &GuestStatus{Name: name}
+	t.items[name] = s
+	return s
+}
+
+func humanSince(at time.Time, now ...time.Time) string {
+	ref := time.Now()
+	if len(now) > 0 {
+		ref = now[0]
+	}
+	if at.IsZero() {
+		return ""
+	}
+	d := ref.Sub(at)
+	if d < time.Minute {
+		return "1分未満"
+	}
+	m := int(d.Minutes())
+	if m < 60 {
+		return fmt.Sprintf("%d分前", m)
+	}
+	h := m / 60
+	if h < 24 {
+		return fmt.Sprintf("%d時間前", h)
+	}
+	return fmt.Sprintf("%d日前", h/24)
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/ocr.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/ocr.go
@@ -0,0 +1,30 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+)
+
+func runPythonOcrFromScreen() error {
+	script := `
+import sys
+from pathlib import Path
+root = Path(r"C:\Users\kenny\Documents\git\messpy\VRC\VRWT_Tool\VRC_OSC")
+sys.path.insert(0, str(root / "src"))
+from ocr.ocr_actions import runOcrFromScreen
+runOcrFromScreen()
+`
+	cmd := exec.Command("python", "-c", script)
+	cmd.Dir = `C:\Users\kenny\Documents\git\messpy\VRC\VRWT_Tool\VRC_OSC`
+	out, err := cmd.CombinedOutput()
+	if len(out) > 0 {
+		log.Printf("ocr output: %s", string(out))
+		SetOCRText(string(out))
+		SetTranslateText("翻訳: 未実装")
+	}
+	if err != nil {
+		return fmt.Errorf("ocr failed: %w", err)
+	}
+	return nil
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/runtime.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/runtime.go
@@ -0,0 +1,48 @@
+package app
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+func appendRuntimeLog(title, text string) error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	path := filepath.Join(dir, "runtime.log")
+	body := text
+	if body == "" {
+		body = "(empty)"
+	}
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = fmt.Fprintf(f, "\n[%s] %s\n%s\n", time.Now().Format("2006-01-02 15:04:05"), title, body)
+	return err
+}
+
+func appendJoinLeaveLog(text string) error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	path := filepath.Join(dir, "join_leave.log")
+	body := text
+	if body == "" {
+		body = "(empty)"
+	}
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = fmt.Fprintf(f, "\n[%s] VRC JOIN/LEAVE\n%s\n", time.Now().Format("2006-01-02 15:04:05"), body)
+	return err
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/self_monitor.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/self_monitor.go
@@ -0,0 +1,69 @@
+package app
+
+import (
+	"log"
+	"os"
+	"regexp"
+	"strings"
+	"time"
+
+	"vrc_osc_go/internal/config"
+	"vrc_osc_go/internal/osc"
+)
+
+var (
+	selfJoinPattern = regexp.MustCompile(`OnPlayerJoined\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	selfLeftPattern = regexp.MustCompile(`OnPlayerLeft\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+)
+
+func startSelfMonitor(cfg *config.Config, state *discordMuteState) {
+	if cfg.VrcLog.SelfName == "" {
+		return
+	}
+	go func() {
+		lastState := ""
+		for {
+			path, err := findLatestVrchatLog()
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			text, err := os.ReadFile(path)
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			nextState := extractLatestSelfLogState(string(text), cfg.VrcLog.SelfName)
+			if nextState != "" && nextState != lastState {
+				if nextState == "joined" {
+					if err := handleDiscordSend(state, []osc.Value{{Type: 'T', Bool: true}}); err != nil {
+						log.Printf("self monitor discord mute failed: %v", err)
+					}
+				} else if nextState == "left" {
+					if err := handleDiscordSend(state, []osc.Value{{Type: 'F', Bool: false}}); err != nil {
+						log.Printf("self monitor discord mute failed: %v", err)
+					}
+				}
+				lastState = nextState
+			}
+			time.Sleep(2 * time.Second)
+		}
+	}()
+}
+
+func extractLatestSelfLogState(text, selfName string) string {
+	if selfName == "" {
+		return ""
+	}
+	state := ""
+	for _, rawLine := range strings.Split(text, "\n") {
+		if m := selfJoinPattern.FindStringSubmatch(rawLine); len(m) == 2 && strings.TrimSpace(m[1]) == selfName {
+			state = "joined"
+			continue
+		}
+		if m := selfLeftPattern.FindStringSubmatch(rawLine); len(m) == 2 && strings.TrimSpace(m[1]) == selfName {
+			state = "left"
+		}
+	}
+	return state
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/state.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/state.go
@@ -0,0 +1,89 @@
+package app
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+type RuntimeState struct {
+	mu             sync.RWMutex
+	DiscordMuted   bool
+	LastOCRText    string
+	LastTranslate  string
+	CurrentWorld   string
+}
+
+var runtimeState = &RuntimeState{}
+var guestTracker *GuestTracker
+
+func SetGuestTracker(t *GuestTracker) { guestTracker = t }
+func InitGuestTracker(t *GuestTracker) {
+	guestTracker = t
+	if guestTracker != nil {
+		guestTracker.mu.Lock()
+		_ = guestTracker.persistLocked()
+		guestTracker.mu.Unlock()
+	}
+}
+func GetGuestTracker() *GuestTracker  { return guestTracker }
+
+func SetDiscordMuted(v bool) {
+	runtimeState.mu.Lock()
+	runtimeState.DiscordMuted = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetOCRText(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.LastOCRText = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetTranslateText(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.LastTranslate = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetCurrentWorld(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.CurrentWorld = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SnapshotRuntime() RuntimeState {
+	runtimeState.mu.RLock()
+	defer runtimeState.mu.RUnlock()
+	return *runtimeState
+}
+
+func persistRuntimeState() error {
+	s := SnapshotRuntime()
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	f, err := os.Create(filepath.Join(dir, "state.json"))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.SetIndent("", "  ")
+	return enc.Encode(map[string]any{
+		"discord_muted": s.DiscordMuted,
+		"ocr":           s.LastOCRText,
+		"translate":     s.LastTranslate,
+		"world":         s.CurrentWorld,
+		"updated_at":    time.Now().Format(time.RFC3339),
+	})
+}
--- a/VRWT_Tool/VRC_OSC/internal/app/vrc_log.go
+++ b/VRWT_Tool/VRC_OSC/internal/app/vrc_log.go
@@ -0,0 +1,345 @@
+package app
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+var (
+	joinPattern          = regexp.MustCompile(`OnPlayerJoined\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	leftPattern          = regexp.MustCompile(`OnPlayerLeft\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	worldIdPattern       = regexp.MustCompile(`worldId=(wrld_[0-9a-fA-F-]+)`)
+	instanceIdPattern    = regexp.MustCompile(`instanceId=([^,}\s]+)`)
+	worldNamePattern     = regexp.MustCompile(`worldName=([^,}]+)`)
+	worldLocationPattern = regexp.MustCompile(`worldId=(wrld_[0-9a-fA-F-]+):([^\s,\]\)\"']+)`)
+	worldPattern         = regexp.MustCompile(`(wrld_[0-9a-fA-F-]+(?::[^\s\]\)\"']+)?)`)
+	enteringRoomPattern  = regexp.MustCompile(`\[Behaviour\]\s+(?:Entering Room|Joining or Creating Room):\s+(.+)$`)
+)
+
+type vrcLogState struct {
+	location         string
+	worldID          string
+	instanceID       string
+	worldName        string
+	pendingWorldName string
+	presentSet       map[string]struct{}
+	initialized      bool
+}
+
+func getVrchatLogDir() (string, error) {
+	userProfile := os.Getenv("USERPROFILE")
+	if userProfile == "" {
+		return "", os.ErrNotExist
+	}
+	return filepath.Join(userProfile, "AppData", "LocalLow", "VRChat", "VRChat"), nil
+}
+
+func findLatestVrchatLog() (string, error) {
+	dir, err := getVrchatLogDir()
+	if err != nil {
+		return "", err
+	}
+
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return "", err
+	}
+
+	var latest string
+	var latestMod time.Time
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		if !strings.HasSuffix(strings.ToLower(name), ".log") && !strings.HasSuffix(strings.ToLower(name), ".txt") {
+			continue
+		}
+		info, err := entry.Info()
+		if err != nil {
+			continue
+		}
+		if info.ModTime().After(latestMod) {
+			latestMod = info.ModTime()
+			latest = filepath.Join(dir, name)
+		}
+	}
+	if latest == "" {
+		return "", os.ErrNotExist
+	}
+	return latest, nil
+}
+
+func watchVrchatLog() {
+	lastPath := ""
+	lastSize := int64(0)
+	state := &vrcLogState{
+		presentSet: map[string]struct{}{},
+	}
+	for {
+		path, err := findLatestVrchatLog()
+		if err != nil {
+			time.Sleep(2 * time.Second)
+			continue
+		}
+		info, err := os.Stat(path)
+		if err != nil {
+			time.Sleep(2 * time.Second)
+			continue
+		}
+		if path != lastPath {
+			log.Printf("vrchat log watching %s", path)
+			lastPath = path
+			lastSize = 0
+			if err := scanExistingVrchatLog(path, state); err != nil {
+				log.Printf("vrchat log initial scan failed: %v", err)
+			}
+			if info2, err := os.Stat(path); err == nil {
+				lastSize = info2.Size()
+			} else {
+				lastSize = info.Size()
+			}
+			time.Sleep(2 * time.Second)
+			continue
+		}
+
+		if info.Size() < lastSize {
+			lastSize = 0
+		}
+		if info.Size() > lastSize {
+			f, err := os.Open(path)
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			_, _ = f.Seek(lastSize, 0)
+			scanner := bufio.NewScanner(f)
+			for scanner.Scan() {
+				line := scanner.Text()
+				if err := appendRuntimeLog("VRC LOG", line); err != nil {
+					log.Printf("append runtime log failed: %v", err)
+				}
+				if changed, worldLabel := updateWorldState(state, line); changed {
+					log.Printf("world changed: %s", worldLabel)
+					state.presentSet = map[string]struct{}{}
+					SetCurrentWorld(worldLabel)
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.SetCurrentInstance(worldLabel)
+					}
+					_ = appendRuntimeLog("VRC WORLD", worldLabel)
+				}
+				at := extractLineTime(line)
+				if m := joinPattern.FindStringSubmatch(line); len(m) == 2 {
+					name := strings.TrimSpace(m[1])
+					state.presentSet[name] = struct{}{}
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.MarkJoin(name, at)
+					}
+					out := fmt.Sprintf("[join] %s (%d)", name, len(state.presentSet))
+					log.Print(out)
+					_ = appendJoinLeaveLog(out)
+					continue
+				}
+				if m := leftPattern.FindStringSubmatch(line); len(m) == 2 {
+					name := strings.TrimSpace(m[1])
+					delete(state.presentSet, name)
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.MarkLeave(name, at)
+					}
+					out := fmt.Sprintf("[leave] %s (%d)", name, len(state.presentSet))
+					log.Print(out)
+					_ = appendJoinLeaveLog(out)
+					continue
+				}
+			}
+			lastSize = info.Size()
+			_ = f.Close()
+		}
+		time.Sleep(2 * time.Second)
+	}
+}
+
+func scanExistingVrchatLog(path string, state *vrcLogState) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	state.presentSet = map[string]struct{}{}
+	state.location = ""
+	state.worldID = ""
+	state.instanceID = ""
+	state.worldName = ""
+	state.pendingWorldName = ""
+	state.initialized = false
+
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if changed, _ := updateWorldState(state, line); changed {
+			state.presentSet = map[string]struct{}{}
+		}
+		if m := joinPattern.FindStringSubmatch(line); len(m) == 2 {
+			name := strings.TrimSpace(m[1])
+			state.presentSet[name] = struct{}{}
+			if tracker := GetGuestTracker(); tracker != nil {
+				tracker.MarkJoin(name, extractLineTime(line))
+			}
+			continue
+		}
+		if m := leftPattern.FindStringSubmatch(line); len(m) == 2 {
+			name := strings.TrimSpace(m[1])
+			delete(state.presentSet, name)
+			if tracker := GetGuestTracker(); tracker != nil {
+				tracker.MarkLeave(name, extractLineTime(line))
+			}
+			continue
+		}
+	}
+	if err := scanner.Err(); err != nil {
+		return err
+	}
+	state.initialized = true
+	if state.worldName != "" {
+		log.Printf("world changed: %s", state.worldName)
+		SetCurrentWorld(state.worldName)
+		if tracker := GetGuestTracker(); tracker != nil {
+			tracker.SetCurrentInstance(state.worldName)
+		}
+		_ = appendRuntimeLog("VRC WORLD", state.worldName)
+	}
+	return nil
+}
+
+func updateWorldState(state *vrcLogState, line string) (bool, string) {
+	worldID := ""
+	instanceID := ""
+	worldName := ""
+	roomTitle := ""
+
+	if m := enteringRoomPattern.FindStringSubmatch(line); len(m) == 2 {
+		roomTitle = strings.TrimSpace(m[1])
+		state.pendingWorldName = roomTitle
+	}
+	if m := worldLocationPattern.FindStringSubmatch(line); len(m) == 3 {
+		worldID = strings.TrimSpace(m[1])
+		instanceID = strings.TrimSpace(m[2])
+	}
+
+	if m := worldIdPattern.FindStringSubmatch(line); len(m) == 2 {
+		worldID = strings.TrimSpace(m[1])
+	}
+	if m := instanceIdPattern.FindStringSubmatch(line); len(m) == 2 {
+		instanceID = strings.TrimSpace(m[1])
+	}
+	if m := worldNamePattern.FindStringSubmatch(line); len(m) == 2 {
+		worldName = strings.TrimSpace(m[1])
+	}
+
+	if m := enteringRoomPattern.FindStringSubmatch(line); len(m) == 2 && worldID == "" {
+		if worldMatch := worldPattern.FindStringSubmatch(m[1]); len(worldMatch) == 2 {
+			worldID = worldMatch[1]
+		}
+	}
+
+	nextLocation := ""
+	if worldID != "" {
+		nextLocation = worldID
+		if instanceID != "" {
+			nextLocation = worldID + ":" + instanceID
+		}
+	}
+
+	if nextLocation != "" && nextLocation != state.location {
+		state.location = nextLocation
+		state.worldID = worldID
+		state.instanceID = instanceID
+		if worldName != "" {
+			state.worldName = worldName
+		} else if shouldUseRoomTitlePreferLatest(roomTitle, state.worldName) {
+			state.worldName = roomTitle
+		}
+		label := state.worldName
+		if label == "" {
+			label = state.worldID
+		}
+		if label == "" {
+			label = nextLocation
+		}
+		if state.initialized {
+			log.Printf("world changed: %s", label)
+			_ = appendRuntimeLog("VRC WORLD", label)
+		}
+		return true, label
+	}
+
+	if worldName != "" {
+		state.worldName = worldName
+		state.pendingWorldName = ""
+		return false, ""
+	}
+	if shouldUseRoomTitlePreferLatest(roomTitle, state.worldName) {
+		state.worldName = roomTitle
+	}
+
+	return false, ""
+}
+
+func shouldUseRoomTitle(roomTitle, currentWorldName string) bool {
+	if roomTitle == "" {
+		return false
+	}
+	if strings.Contains(roomTitle, "Home Location") {
+		return false
+	}
+	if roomTitle == "Holiday-Cottage" && currentWorldName != "" && currentWorldName != roomTitle {
+		return false
+	}
+	if currentWorldName == "" {
+		return true
+	}
+	if roomTitle == currentWorldName {
+		return false
+	}
+	if len(roomTitle) > len(currentWorldName) {
+		return true
+	}
+	if strings.Contains(roomTitle, "「") || strings.Contains(roomTitle, "」") || strings.Contains(roomTitle, "[") {
+		return true
+	}
+	return false
+}
+
+func shouldUseRoomTitlePreferLatest(roomTitle, currentWorldName string) bool {
+	if roomTitle == "" {
+		return false
+	}
+	if strings.Contains(roomTitle, "Home Location") {
+		return false
+	}
+	if currentWorldName == "" {
+		return true
+	}
+	if roomTitle == currentWorldName {
+		return false
+	}
+	return true
+}
+
+func extractLineTime(line string) time.Time {
+	if len(line) < 19 {
+		return time.Now()
+	}
+	t, err := time.ParseInLocation("2006.01.02 15:04:05", line[:19], time.Local)
+	if err == nil {
+		return t
+	}
+	return time.Now()
+}
--- a/VRWT_Tool/VRC_OSC/internal/buildinfo/buildinfo.go
+++ b/VRWT_Tool/VRC_OSC/internal/buildinfo/buildinfo.go
@@ -0,0 +1,6 @@
+package buildinfo
+
+var (
+	Version   = "dev"
+	BuildTime = "unknown"
+)
--- a/VRWT_Tool/VRC_OSC/internal/common/project_paths.go
+++ b/VRWT_Tool/VRC_OSC/internal/common/project_paths.go
@@ -0,0 +1,16 @@
+package common
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func RuntimeBaseDir() string {
+	exe, err := os.Executable()
+	if err == nil {
+		return filepath.Dir(exe)
+	}
+	return "."
+}
+
+func RootDir() string { return RuntimeBaseDir() }
--- a/VRWT_Tool/VRC_OSC/internal/config/config.go
+++ b/VRWT_Tool/VRC_OSC/internal/config/config.go
@@ -0,0 +1,146 @@
+package config
+
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"vrc_osc_go/internal/common"
+)
+
+type Config struct {
+	OSC    OSCConfig
+	VrcLog VrcLogConfig
+}
+
+type OSCConfig struct {
+	Host string
+	Port int
+}
+
+type VrcLogConfig struct {
+	SelfName     string
+	GuestNames   []string
+	GuestFile    string
+	StaffNames   []string
+	MissingCount int
+	LogPatterns  []string
+}
+
+func Load(path string) (*Config, error) {
+	cfg := &Config{
+		OSC: OSCConfig{Host: "127.0.0.1", Port: 9001},
+	}
+	if path == "" {
+		path = filepath.Join(common.RootDir(), "config", "config.toml")
+	} else if !filepath.IsAbs(path) {
+		path = filepath.Join(common.RootDir(), path)
+	}
+	file, err := os.Open(path)
+	if err != nil {
+		return cfg, nil
+	}
+	defer file.Close()
+
+	var section string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		line = strings.TrimPrefix(line, "\ufeff")
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			section = strings.Trim(line, "[]")
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		val := strings.TrimSpace(parts[1])
+		val = strings.Trim(val, "\"'")
+		switch section {
+		case "osc":
+			switch key {
+			case "host":
+				cfg.OSC.Host = val
+			case "port":
+				if n, err := strconv.Atoi(val); err == nil {
+					cfg.OSC.Port = n
+				}
+			}
+		case "self":
+			if key == "name" {
+				cfg.VrcLog.SelfName = val
+			}
+		case "notice":
+			if key == "missing_count" {
+				if n, err := strconv.Atoi(val); err == nil {
+					cfg.VrcLog.MissingCount = n
+				}
+			}
+		case "vrc_log":
+			if key == "patterns" {
+				cfg.VrcLog.LogPatterns = parseList(val)
+			}
+		case "staff":
+			if key == "names" {
+				cfg.VrcLog.StaffNames = parseList(val)
+			}
+		case "guest":
+			switch key {
+			case "names":
+				cfg.VrcLog.GuestNames = parseList(val)
+			case "file":
+				cfg.VrcLog.GuestFile = val
+			}
+		}
+	}
+	if cfg.VrcLog.GuestFile != "" {
+		if !filepath.IsAbs(cfg.VrcLog.GuestFile) {
+			cfg.VrcLog.GuestFile = filepath.Join(common.RootDir(), cfg.VrcLog.GuestFile)
+		}
+		if names, err := loadLines(cfg.VrcLog.GuestFile); err == nil {
+			cfg.VrcLog.GuestNames = names
+		}
+	}
+	return cfg, scanner.Err()
+}
+
+func parseList(value string) []string {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "[")
+	value = strings.TrimSuffix(value, "]")
+	if value == "" {
+		return nil
+	}
+	parts := strings.Split(value, ",")
+	out := make([]string, 0, len(parts))
+	for _, part := range parts {
+		part = strings.TrimSpace(strings.Trim(part, "\"'"))
+		if part != "" {
+			out = append(out, part)
+		}
+	}
+	return out
+}
+
+func loadLines(path string) ([]string, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	lines := strings.Split(string(data), "\n")
+	out := make([]string, 0, len(lines))
+	for _, line := range lines {
+		line = strings.TrimSpace(strings.TrimPrefix(line, "\ufeff"))
+		if line != "" && !strings.HasPrefix(line, "#") {
+			out = append(out, line)
+		}
+	}
+	return out, nil
+}
--- a/VRWT_Tool/VRC_OSC/internal/consenttool/config.go
+++ b/VRWT_Tool/VRC_OSC/internal/consenttool/config.go
@@ -0,0 +1,144 @@
+package consenttool
+
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	Consent ConsentConfig
+	Log     LogConfig
+}
+
+type ConsentConfig struct {
+	InputCSV        string
+	OutputJSON      string
+	DisplayFields   []string
+	ConsentFields   []string
+	ConsentValues   []string
+	NormalizeCase   bool
+	AllowDuplicates bool
+}
+
+type LogConfig struct {
+	InputPath    string
+	OutputPath   string
+	IncludeRegex string
+	KeepNonMatch bool
+}
+
+func LoadConfig(path string) (*Config, error) {
+	cfg := &Config{
+		Consent: ConsentConfig{
+			InputCSV:        "config/consent.csv",
+			OutputJSON:      "config/consent_list.json",
+			DisplayFields:   []string{"display_name", "vrchat_name", "name"},
+			ConsentFields:   []string{"consent", "agree", "agreed", "checked"},
+			ConsentValues:   []string{"1", "true", "yes", "y", "on", "checked"},
+			NormalizeCase:   false,
+			AllowDuplicates: false,
+		},
+		Log: LogConfig{
+			InputPath:    "runtime/output_log.txt",
+			OutputPath:   "runtime/research_log.txt",
+			IncludeRegex: `\[[A-Z0-9:_ -]+\]`,
+			KeepNonMatch: false,
+		},
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var section string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		line = strings.TrimPrefix(line, "\ufeff")
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			section = strings.Trim(line, "[]")
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		val := strings.TrimSpace(parts[1])
+		val = strings.Trim(val, "\"'")
+
+		switch section {
+		case "consent":
+			switch key {
+			case "input_csv":
+				cfg.Consent.InputCSV = val
+			case "output_json":
+				cfg.Consent.OutputJSON = val
+			case "display_fields":
+				cfg.Consent.DisplayFields = parseList(val)
+			case "consent_fields":
+				cfg.Consent.ConsentFields = parseList(val)
+			case "consent_values":
+				cfg.Consent.ConsentValues = parseList(val)
+			case "normalize_case":
+				cfg.Consent.NormalizeCase = parseBool(val)
+			case "allow_duplicates":
+				cfg.Consent.AllowDuplicates = parseBool(val)
+			}
+		case "log":
+			switch key {
+			case "input_path":
+				cfg.Log.InputPath = val
+			case "output_path":
+				cfg.Log.OutputPath = val
+			case "include_regex":
+				cfg.Log.IncludeRegex = val
+			case "keep_non_match":
+				cfg.Log.KeepNonMatch = parseBool(val)
+			}
+		}
+	}
+	return cfg, scanner.Err()
+}
+
+func parseList(value string) []string {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "[")
+	value = strings.TrimSuffix(value, "]")
+	if value == "" {
+		return nil
+	}
+	items := strings.Split(value, ",")
+	out := make([]string, 0, len(items))
+	for _, item := range items {
+		item = strings.TrimSpace(item)
+		item = strings.Trim(item, "\"'")
+		if item != "" {
+			out = append(out, item)
+		}
+	}
+	return out
+}
+
+func parseBool(value string) bool {
+	n, err := strconv.ParseBool(strings.TrimSpace(value))
+	return err == nil && n
+}
+
+func resolvePath(baseDir, value string) string {
+	if value == "" {
+		return ""
+	}
+	if filepath.IsAbs(value) {
+		return value
+	}
+	return filepath.Clean(filepath.Join(baseDir, value))
+}
--- a/VRWT_Tool/VRC_OSC/internal/consenttool/tool.go
+++ b/VRWT_Tool/VRC_OSC/internal/consenttool/tool.go
@@ -0,0 +1,183 @@
+package consenttool
+
+import (
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+func Run(configPath string, mode string) error {
+	cfg, err := LoadConfig(configPath)
+	if err != nil {
+		return err
+	}
+	baseDir := filepath.Dir(configPath)
+
+	switch mode {
+	case "generate-json":
+		return generateJSON(cfg, baseDir)
+	case "extract-log":
+		return extractLog(cfg, baseDir)
+	default:
+		return fmt.Errorf("unknown mode %q", mode)
+	}
+}
+
+func generateJSON(cfg *Config, baseDir string) error {
+	inputPath := resolvePath(baseDir, cfg.Consent.InputCSV)
+	outputPath := resolvePath(baseDir, cfg.Consent.OutputJSON)
+
+	rows, err := readCSVRows(inputPath)
+	if err != nil {
+		return err
+	}
+
+	names := collectConsentedNames(rows, cfg.Consent)
+	body, err := json.MarshalIndent(names, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(filepath.Dir(outputPath), 0o755); err != nil {
+		return err
+	}
+	return os.WriteFile(outputPath, append(body, '\n'), 0o644)
+}
+
+func extractLog(cfg *Config, baseDir string) error {
+	inputPath := resolvePath(baseDir, cfg.Log.InputPath)
+	outputPath := resolvePath(baseDir, cfg.Log.OutputPath)
+
+	data, err := os.ReadFile(inputPath)
+	if err != nil {
+		return err
+	}
+
+	re, err := regexp.Compile(cfg.Log.IncludeRegex)
+	if err != nil {
+		return err
+	}
+
+	var kept []string
+	for _, line := range strings.Split(strings.ReplaceAll(string(data), "\r\n", "\n"), "\n") {
+		if re.MatchString(line) {
+			kept = append(kept, line)
+			continue
+		}
+		if cfg.Log.KeepNonMatch {
+			kept = append(kept, line)
+		}
+	}
+
+	body := strings.Join(kept, "\n")
+	if body != "" {
+		body += "\n"
+	}
+	if err := os.MkdirAll(filepath.Dir(outputPath), 0o755); err != nil {
+		return err
+	}
+	return os.WriteFile(outputPath, []byte(body), 0o644)
+}
+
+func readCSVRows(path string) ([]map[string]string, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	r := csv.NewReader(file)
+	headers, err := r.Read()
+	if err != nil {
+		return nil, err
+	}
+	for i, header := range headers {
+		headers[i] = strings.TrimPrefix(strings.TrimSpace(header), "\ufeff")
+	}
+
+	var rows []map[string]string
+	for {
+		record, err := r.Read()
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return nil, err
+		}
+		row := make(map[string]string, len(headers))
+		for i, header := range headers {
+			if i < len(record) {
+				row[strings.TrimSpace(header)] = strings.TrimPrefix(strings.TrimSpace(record[i]), "\ufeff")
+			}
+		}
+		rows = append(rows, row)
+	}
+	return rows, nil
+}
+
+func collectConsentedNames(rows []map[string]string, cfg ConsentConfig) []string {
+	displayFields := cfg.DisplayFields
+	if len(displayFields) == 0 {
+		displayFields = []string{"display_name", "vrchat_name", "name"}
+	}
+	consentFields := cfg.ConsentFields
+	if len(consentFields) == 0 {
+		consentFields = []string{"consent", "agree", "agreed", "checked"}
+	}
+	accepted := make(map[string]struct{})
+	var names []string
+
+	for _, row := range rows {
+		if !rowIsConsented(row, consentFields, cfg.ConsentValues) {
+			continue
+		}
+		name := firstNonEmpty(row, displayFields)
+		if name == "" {
+			continue
+		}
+		key := name
+		if cfg.NormalizeCase {
+			key = strings.ToLower(key)
+		}
+		if !cfg.AllowDuplicates {
+			if _, ok := accepted[key]; ok {
+				continue
+			}
+			accepted[key] = struct{}{}
+		}
+		names = append(names, name)
+	}
+	return names
+}
+
+func rowIsConsented(row map[string]string, fields []string, values []string) bool {
+	if len(values) == 0 {
+		values = []string{"1", "true", "yes", "y", "on", "checked"}
+	}
+	allowed := make(map[string]struct{}, len(values))
+	for _, v := range values {
+		allowed[strings.ToLower(strings.TrimSpace(v))] = struct{}{}
+	}
+	for _, field := range fields {
+		if v, ok := row[field]; ok {
+			if _, ok := allowed[strings.ToLower(strings.TrimSpace(v))]; ok {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func firstNonEmpty(row map[string]string, fields []string) string {
+	for _, field := range fields {
+		if v := strings.TrimSpace(row[field]); v != "" {
+			return v
+		}
+	}
+	return ""
+}
--- a/VRWT_Tool/VRC_OSC/internal/consenttool/tool_test.go
+++ b/VRWT_Tool/VRC_OSC/internal/consenttool/tool_test.go
@@ -0,0 +1,44 @@
+package consenttool
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestCollectConsentedNames(t *testing.T) {
+	rows := []map[string]string{
+		{"display_name": "Alice", "consent": "true"},
+		{"display_name": "Bob", "consent": "false"},
+		{"display_name": "Alice", "consent": "yes"},
+	}
+
+	names := collectConsentedNames(rows, ConsentConfig{})
+	if len(names) != 1 || names[0] != "Alice" {
+		t.Fatalf("unexpected names: %#v", names)
+	}
+}
+
+func TestExtractLog(t *testing.T) {
+	dir := t.TempDir()
+	cfg := &Config{
+		Log: LogConfig{
+			InputPath:    "input.log",
+			OutputPath:   "out.log",
+			IncludeRegex: `ID:[0-9]+`,
+		},
+	}
+	if err := os.WriteFile(filepath.Join(dir, "input.log"), []byte("x\nID:1 hello\nnope\n"), 0o600); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	if err := extractLog(cfg, dir); err != nil {
+		t.Fatalf("extractLog: %v", err)
+	}
+	out, err := os.ReadFile(filepath.Join(dir, "out.log"))
+	if err != nil {
+		t.Fatalf("ReadFile: %v", err)
+	}
+	if string(out) != "ID:1 hello\n" {
+		t.Fatalf("unexpected output: %q", string(out))
+	}
+}
--- a/VRWT_Tool/VRC_OSC/internal/osc/server.go
+++ b/VRWT_Tool/VRC_OSC/internal/osc/server.go
@@ -0,0 +1,141 @@
+package osc
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"math"
+	"net"
+	"strings"
+	"sync"
+)
+
+type Value struct {
+	Type  byte
+	Float float32
+	Int   int32
+	Bool  bool
+	Str   string
+}
+
+type Handler func(address string, args []Value) error
+
+type Server struct {
+	addr     string
+	conn     *net.UDPConn
+	handlers map[string]Handler
+	mu       sync.RWMutex
+}
+
+func NewServer(host string, port int) *Server {
+	return &Server{
+		addr:     fmt.Sprintf("%s:%d", host, port),
+		handlers: map[string]Handler{},
+	}
+}
+
+func (s *Server) Map(param string, h Handler) { s.handlers["/avatar/parameters/"+param] = h }
+func (s *Server) Close() error {
+	if s.conn != nil {
+		return s.conn.Close()
+	}
+	return nil
+}
+
+func (s *Server) Serve() error {
+	addr, err := net.ResolveUDPAddr("udp", s.addr)
+	if err != nil {
+		return err
+	}
+	conn, err := net.ListenUDP("udp", addr)
+	if err != nil {
+		return err
+	}
+	s.conn = conn
+	buf := make([]byte, 2048)
+	for {
+		n, _, err := conn.ReadFromUDP(buf)
+		if err != nil {
+			return err
+		}
+		a, v, err := parseMessage(buf[:n])
+		if err != nil {
+			continue
+		}
+		s.mu.RLock()
+		h := s.handlers[a]
+		s.mu.RUnlock()
+		if h != nil {
+			_ = h(a, v)
+		}
+	}
+}
+
+func parseMessage(b []byte) (string, []Value, error) {
+	address, offset, err := parsePaddedString(b, 0)
+	if err != nil {
+		return "", nil, err
+	}
+	if !strings.HasPrefix(address, "/") {
+		return "", nil, fmt.Errorf("invalid address")
+	}
+	if offset >= len(b) {
+		return address, nil, nil
+	}
+	typetags, offset, err := parsePaddedString(b, offset)
+	if err != nil {
+		return "", nil, err
+	}
+	if !strings.HasPrefix(typetags, ",") {
+		return address, nil, nil
+	}
+	var values []Value
+	for _, tag := range typetags[1:] {
+		switch tag {
+		case 'i':
+			if offset+4 > len(b) {
+				return "", nil, fmt.Errorf("invalid int")
+			}
+			values = append(values, Value{Type: 'i', Int: int32(binary.BigEndian.Uint32(b[offset : offset+4]))})
+			offset += 4
+		case 'f':
+			if offset+4 > len(b) {
+				return "", nil, fmt.Errorf("invalid float")
+			}
+			bits := binary.BigEndian.Uint32(b[offset : offset+4])
+			values = append(values, Value{Type: 'f', Float: math.Float32frombits(bits)})
+			offset += 4
+		case 's':
+			s, next, err := parsePaddedString(b, offset)
+			if err != nil {
+				return "", nil, err
+			}
+			values = append(values, Value{Type: 's', Str: s})
+			offset = next
+		case 'T':
+			values = append(values, Value{Type: 'T', Bool: true})
+		case 'F':
+			values = append(values, Value{Type: 'F', Bool: false})
+		}
+	}
+	return address, values, nil
+}
+
+func parsePaddedString(b []byte, offset int) (string, int, error) {
+	if offset >= len(b) {
+		return "", offset, fmt.Errorf("invalid osc string")
+	}
+	end := bytes.IndexByte(b[offset:], 0)
+	if end < 0 {
+		return "", offset, fmt.Errorf("invalid osc string")
+	}
+	s := string(b[offset : offset+end])
+	next := offset + end + 1
+	for next%4 != 0 {
+		next++
+	}
+	if next > len(b) {
+		next = len(b)
+	}
+	return s, next, nil
+}
--- a/VRWT_Tool/VRC_OSC/internal/update/manager.go
+++ b/VRWT_Tool/VRC_OSC/internal/update/manager.go
@@ -0,0 +1,106 @@
+package update
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+
+	"vrc_osc_go/internal/buildinfo"
+	"vrc_osc_go/internal/common"
+)
+
+type Manager struct {
+	Client       *Client
+	OwnerRepo    string
+	AssetName    string
+	CurrentLabel string
+}
+
+func (m *Manager) CheckAndUpdate() (bool, error) {
+	if m.Client == nil || m.OwnerRepo == "" || m.AssetName == "" {
+		return false, nil
+	}
+	latest, err := m.Client.LatestRelease(m.OwnerRepo)
+	if err != nil {
+		return false, err
+	}
+	if latest.TagName == "" || latest.TagName == m.CurrentLabel {
+		return false, nil
+	}
+	assetURL := ""
+	for _, a := range latest.Assets {
+		if a.Name == m.AssetName {
+			assetURL = a.URL
+			break
+		}
+	}
+	if assetURL == "" {
+		return false, fmt.Errorf("asset %q not found in release %s", m.AssetName, latest.TagName)
+	}
+	base := common.RootDir()
+	tmpDir := filepath.Join(base, "update", latest.TagName)
+	if err := os.MkdirAll(tmpDir, 0o755); err != nil {
+		return false, err
+	}
+	zipPath := filepath.Join(tmpDir, m.AssetName)
+	log.Printf("update available: %s -> %s", m.CurrentLabel, latest.TagName)
+	if err := m.Client.DownloadAsset(assetURL, zipPath); err != nil {
+		return false, err
+	}
+	if err := ExtractZip(zipPath, tmpDir); err != nil {
+		return false, err
+	}
+	exePath := filepath.Join(base, CurrentExeName())
+	newExe := filepath.Join(tmpDir, CurrentExeName())
+	if _, err := os.Stat(newExe); err != nil {
+		return false, err
+	}
+	backup := exePath + ".bak"
+	_ = os.Remove(backup)
+	if err := os.Rename(exePath, backup); err != nil {
+		return false, err
+	}
+	if err := CopyFile(newExe, exePath); err != nil {
+		_ = os.Rename(backup, exePath)
+		return false, err
+	}
+	_ = os.Remove(backup)
+	return true, nil
+}
+
+func CopyFile(src, dst string) error {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+	if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
+		return err
+	}
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+	_, err = io.Copy(out, in)
+	return err
+}
+
+func Launch(exe string, args []string) error {
+	cmd := exec.Command(exe, args...)
+	cmd.Dir = filepath.Dir(exe)
+	return cmd.Start()
+}
+
+func Version() string { return buildinfo.Version }
+
+func CurrentExeName() string {
+	if runtime.GOOS == "windows" {
+		return "vrc_osc.exe"
+	}
+	return "vrc_osc"
+}
--- a/VRWT_Tool/VRC_OSC/internal/update/release.go
+++ b/VRWT_Tool/VRC_OSC/internal/update/release.go
@@ -0,0 +1,125 @@
+package update
+
+import (
+	"archive/zip"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+type ReleaseInfo struct {
+	TagName string `json:"tag_name"`
+	Assets  []struct {
+		Name string `json:"name"`
+		URL  string `json:"browser_download_url"`
+	} `json:"assets"`
+}
+
+type Client struct {
+	BaseURL string
+	HTTP    *http.Client
+}
+
+func (c *Client) LatestRelease(ownerRepo string) (*ReleaseInfo, error) {
+	req, err := http.NewRequest(http.MethodGet, c.apiURL(ownerRepo, "/releases/latest"), nil)
+	if err != nil {
+		return nil, err
+	}
+	var info ReleaseInfo
+	if err := c.doJSON(req, &info); err != nil {
+		return nil, err
+	}
+	return &info, nil
+}
+
+func (c *Client) DownloadAsset(url, dst string) error {
+	req, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return err
+	}
+	resp, err := c.httpClient().Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("download failed: %s", resp.Status)
+	}
+	f, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = io.Copy(f, resp.Body)
+	return err
+}
+
+func ExtractZip(zipPath, dstDir string) error {
+	zr, err := zip.OpenReader(zipPath)
+	if err != nil {
+		return err
+	}
+	defer zr.Close()
+	root := filepath.Clean(dstDir) + string(os.PathSeparator)
+	for _, f := range zr.File {
+		target := filepath.Clean(filepath.Join(dstDir, f.Name))
+		if target != filepath.Clean(dstDir) && !strings.HasPrefix(target, root) {
+			return fmt.Errorf("zip path escapes destination: %s", f.Name)
+		}
+		if f.FileInfo().IsDir() {
+			if err := os.MkdirAll(target, 0o755); err != nil {
+				return err
+			}
+			continue
+		}
+		if err := os.MkdirAll(filepath.Dir(target), 0o755); err != nil {
+			return err
+		}
+		rc, err := f.Open()
+		if err != nil {
+			return err
+		}
+		out, err := os.Create(target)
+		if err != nil {
+			rc.Close()
+			return err
+		}
+		_, copyErr := io.Copy(out, rc)
+		out.Close()
+		rc.Close()
+		if copyErr != nil {
+			return copyErr
+		}
+	}
+	return nil
+}
+
+func (c *Client) apiURL(ownerRepo, suffix string) string {
+	base := strings.TrimRight(c.BaseURL, "/")
+	return base + "/api/v1/repos/" + strings.Trim(ownerRepo, "/") + suffix
+}
+
+func (c *Client) doJSON(req *http.Request, out any) error {
+	resp, err := c.httpClient().Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(io.LimitReader(resp.Body, 2048))
+		return fmt.Errorf("request failed: %s: %s", resp.Status, strings.TrimSpace(string(body)))
+	}
+	return json.NewDecoder(resp.Body).Decode(out)
+}
+
+func (c *Client) httpClient() *http.Client {
+	if c.HTTP != nil {
+		return c.HTTP
+	}
+	return &http.Client{Timeout: 30 * time.Second}
+}
--- a/VRWT_Tool/VRC_OSC/readme.txt
+++ b/VRWT_Tool/VRC_OSC/readme.txt
@@ -0,0 +1,238 @@
+# VRC_OSC
+
+VRChat の OSC パラメータを受けて、Discord ミュート、VRChat ログ監視、OCR、翻訳を実行するローカルツール。
+
+## 起動
+
+依存関係を入れる。
+
+```powershell
+python -m pip install -r requirements.txt
+```
+
+PowerShell から起動する。
+
+```powershell
+bin\vrc_osc.ps1
+```
+
+Python から直接起動する場合。
+
+```powershell
+python src\bin\vrc_osc.py
+```
+
+OSC は `127.0.0.1:9001` で待ち受ける。
+
+## 構成
+
+```text
+bin/                 PowerShell 起動スクリプト
+config/              example とローカル設定置き場
+src/app.py           アプリ本体のエントリ
+src/bin/             Python 起動スクリプト
+src/common/          パス、設定ロード、runtime ログなどの共通基盤
+src/discord_control/ Discord ウィンドウ操作
+src/ocr/             OCR 実行
+src/osc/             OSC gateway
+src/screen/          VRChat ウィンドウ検出とキャプチャ
+src/tools/           単体実行用の補助ツール
+src/translate/       翻訳
+src/vrc_log/         VRChat ログ解析と名簿照合
+```
+
+## 設定ファイル
+
+実設定は `config/config.toml` に置く。このファイルは Git に入れない。
+
+雛形は `config/config.example.toml`。
+
+```toml
+[self]
+name = "自分のVRChat表示名"
+
+[staff]
+names = [
+  "StaffUserA"
+]
+
+[guest]
+file = "config/guests.txt"
+
+[notice]
+missing_count = 3
+
+[ocr.crop]
+left = 0.05
+top = 0.35
+right = 0.95
+bottom = 0.95
+
+[ocr]
+preprocess = true
+scale = 1.5
+use_angle_cls = false
+```
+
+`self.name` は Discord 自動ミュート判定に使う。
+
+`staff.names` は表示対象だが guest 人数には含めない。
+
+`guest.file` は guest 名簿ファイル。guest 人数の母数と在室判定に使う。
+
+`notice.missing_count` は「あと何人以内で全員集合か」の通知範囲。例えば guest が 23 人で `missing_count = 3` の場合、20〜22 人のときに未入室 guest を出す。
+
+OCR 設定は速度と精度の調整用。
+
+`ocr.crop` は VRChat ウィンドウ内の相対座標。`0.0` から `1.0` で指定する。デフォルトは画面下側の中央寄りだけを読む。
+
+フル画面 OCR に戻す場合。
+
+```toml
+[ocr.crop]
+left = 0
+top = 0
+right = 1
+bottom = 1
+```
+
+`ocr.preprocess = true` はグレースケール化、コントラスト補正、シャープ化、拡大を行う。
+
+`ocr.scale` は前処理時の拡大率。大きいほど小さい文字に強くなるが遅くなる。
+
+`ocr.use_angle_cls = false` は角度分類を切って高速化する。縦書きや回転文字を読む必要がある場合だけ `true` にする。
+
+## guest 名簿
+
+`config/guests.txt` に 1 行 1 名で書く。このファイルは Git に入れない。
+
+雛形は `config/guests.example.txt`。
+
+```text
+GuestUserA
+GuestUserB
+GuestUserC
+```
+
+空行と `#` で始まる行は無視する。
+
+## 秘密情報
+
+秘密情報は `config/secrets.toml` に置く。このファイルは Git に入れない。
+
+雛形は `config/secrets.example.toml`。
+
+```toml
+[discord]
+webhook_url = ""
+
+[vrchat]
+username = ""
+password = ""
+```
+
+`discord.webhook_url` は VRC ログ結果の Discord Webhook 通知に使う。
+
+`vrchat.username` / `vrchat.password` は `src/tools/resolve_vrchat_user.py` を使う場合だけ必要。
+
+## OSC パラメータ
+
+Avatar Parameters 側の名前と一致させる。
+
+| Parameter | 動作 |
+| --- | --- |
+| `DiscordSend` | 押した瞬間に Discord の mute hotkey を送る |
+| `vrc_log` | VRC ログ監視の on/off |
+| `ocrEnabled` | VRChat 画面を撮って OCR |
+| `translation` | OCR して日本語翻訳 |
+
+## VRC ログ監視
+
+`vrc_log` を押すと、現在の VRChat ログを一度解析して Discord Webhook に送る。その後はログファイル末尾を追い、新しい join / leave / world 系ログが追記されたタイミングで即再解析する。
+
+以前のような `output_log = 10` の秒数ポーリング設定は使わない。
+
+解析対象は昼 12:00 以降。実行時刻が昼 12:00 前なら前日 12:00 以降を見る。
+
+インスタンスが変わったら在室状態はリセットする。
+
+出力例。
+
+```text
+ワールド入室: Midnight Rooftop
+現在Guest: 0/3
+[01:20] [join] GuestUserA 1/3
+[01:21] [join] GuestUserB 2/3
+[01:25] [leave] GuestUserA 1/3
+[01:26] [join] [staff] StaffUserA 1/3
+```
+
+notice 条件に入った場合。
+
+```text
+現在Guest: 2/3
+未入室Guest:
+- GuestUserC
+```
+
+## Discord 自動ミュート
+
+常時 self monitor が VRChat ログの新規追記だけを見る。
+
+新しく追記されたログの中で、自分の最後のイベントが `OnPlayerJoined` なら Discord を mute、`OnPlayerLeft` なら unmute する。
+
+過去ログ全体の最後が self leave / join だっただけでは反応しない。
+
+`setDiscordMuted()` にはロックがあり、同時実行で mute hotkey が連続送信されないようにしている。
+
+## OCR / 翻訳
+
+`ocrEnabled` は VRChat ウィンドウを撮影して PaddleOCR にかける。結果はクリップボードへコピーする。
+
+`translation` は OCR 結果を翻訳し、翻訳結果をクリップボードへコピーする。
+
+OCR はデフォルトで画面全体ではなく、画面下側の中央寄りを切り出して読む。会話ログや字幕を読む用途では速く、余計な UI 文字を拾いにくい。
+
+## runtime
+
+新規の実行ログは基本的に以下へまとめる。
+
+```text
+runtime/runtime.log
+runtime/latest_ocr.png
+runtime/latest_screenshot.png
+```
+
+`runtime/` は Git に入れない。
+
+OCR text、翻訳 text、VRC ログ結果は `runtime/runtime.log` に追記する。
+
+画像は最新ファイルに上書きする。日時別ファイルを増やさない。
+
+## ユーザー名照合
+
+`src/vrc_log/member_name_matcher.py` は TOML 登録名と VRChat 表示名を安全な順番で紐づける補助実装。
+
+照合順。
+
+1. 完全一致
+2. 正規化一致
+3. 高信頼 fuzzy
+4. guest のみ低信頼 fuzzy
+5. pending / ambiguous / unmatched
+
+完全一致・正規化一致で確定した名前は fuzzy 候補から除外する。
+
+## Git に入れないもの
+
+以下はローカル専用。
+
+- `config/config.toml`
+- `config/secrets.toml`
+- `config/guests.txt`
+- `runtime/`
+- `__pycache__/`
+- `*.pyc`
+- `.vrchat_cookie.txt`
+
+秘密情報を含む可能性があるものはコミットしない。
--- a/VRWT_Tool/VRC_OSC/requirements.txt
+++ b/VRWT_Tool/VRC_OSC/requirements.txt
@@ -0,0 +1,10 @@
+deep-translator
+paddleocr
+pillow
+pyautogui
+pygetwindow
+pykakasi
+pyperclip
+python-osc
+rapidfuzz
+vrchatapi
--- a/VRWT_Tool/VRC_OSC/src/app.py
+++ b/VRWT_Tool/VRC_OSC/src/app.py
@@ -0,0 +1,114 @@
+import os
+from pathlib import Path
+import sys
+
+os.environ["FLAGS_enable_pir_api"] = "0"
+os.environ["FLAGS_use_onednn"] = "0"
+os.environ["FLAGS_use_mkldnn"] = "0"
+os.environ["FLAGS_use_onednn_bfloat16"] = "0"
+os.environ["ONEDNN_VERBOSE"] = "0"
+
+SRC_DIR = Path(__file__).resolve().parents[1]
+if str(SRC_DIR) not in sys.path:
+    sys.path.insert(0, str(SRC_DIR))
+
+from osc.gateway import VrcOscGateway
+from discord_control.actions import setDiscordMute
+from ocr.ocr_actions import runOcrFromScreen
+from translate.translate_actions import saveTranslationText
+from translate.translate_actions import translateTextToJapanese
+from vrc_log.log_actions import collectVrchatLog
+from vrc_log.log_actions import startSelfMonitor
+from vrc_log.log_actions import startVrcLogMonitor
+from vrc_log.log_actions import stopSelfMonitor
+from vrc_log.log_actions import stopVrcLogMonitor
+
+PARAM_DISCORD_MUTE = "DiscordSend"
+PARAM_LOG_GREP = "vrc_log"
+PARAM_OCR = "ocrEnabled"
+PARAM_TRANSLATE_OCR = "translation"
+
+
+def create_gateway():
+    gateway = VrcOscGateway(host="127.0.0.1", port=9001)
+
+    def on_discord_mute(address, *args):
+        if not args:
+            gateway.log("ERROR", "DiscordSend args empty")
+            return
+
+        if gateway.is_rising_edge(address, args[0]):
+            gateway.log("INFO", f"received {address} args={args}")
+            setDiscordMute()
+
+    vrc_log_enabled = False
+    def on_log_grep(address, *args):
+        nonlocal vrc_log_enabled
+
+        if not args:
+            gateway.log("ERROR", "vrc_log args empty")
+            return
+
+        if gateway.is_rising_edge(address, args[0]):
+            vrc_log_enabled = not vrc_log_enabled
+            gateway.log("INFO", f"received {address} args={args} enabled={vrc_log_enabled}")
+
+            if vrc_log_enabled:
+                collectVrchatLog(notify_changed=True)
+                startVrcLogMonitor()
+            else:
+                stopVrcLogMonitor()
+
+    def on_ocr(address, *args):
+        if not args:
+            gateway.log("ERROR", "ocrEnabled args empty")
+            return
+
+        if gateway.is_rising_edge(address, args[0]):
+            gateway.log("INFO", f"received {address} args={args}")
+            runOcrFromScreen()
+
+    def on_translate_ocr(address, *args):
+        if not args:
+            gateway.log("ERROR", "translateOcr args empty")
+            return
+
+        if gateway.is_rising_edge(address, args[0]):
+            gateway.log("INFO", f"received {address} args={args}")
+
+            result = runOcrFromScreen()
+            if not result:
+                gateway.log("ERROR", "OCR result is None")
+                return
+
+            text = result.get("text", "")
+            if not text.strip():
+                gateway.log("INFO", "OCR text is empty. translation skipped")
+                return
+
+            translated = translateTextToJapanese(text)
+            if not translated.strip():
+                gateway.log("INFO", "translation result is empty")
+                return
+
+            image_path = result.get("image_path")
+            stem = image_path.stem if image_path else "translation"
+            saved = saveTranslationText(stem, translated)
+            gateway.log("INFO", f"translation saved={saved}")
+
+    gateway.map(PARAM_DISCORD_MUTE, on_discord_mute)
+    gateway.map(PARAM_LOG_GREP, on_log_grep)
+    gateway.map(PARAM_OCR, on_ocr)
+    gateway.map(PARAM_TRANSLATE_OCR, on_translate_ocr)
+    gateway.set_default_debug(enabled=False)
+    return gateway
+
+
+def main():
+    gateway = create_gateway()
+    startSelfMonitor()
+    gateway.serve_forever()
+
+
+if __name__ == "__main__":
+    main()
--- a/VRWT_Tool/VRC_OSC/src/bin/vrc_osc.py
+++ b/VRWT_Tool/VRC_OSC/src/bin/vrc_osc.py
@@ -0,0 +1,13 @@
+from pathlib import Path
+import sys
+
+SRC_DIR = Path(__file__).resolve().parents[1]
+
+if str(SRC_DIR) not in sys.path:
+    sys.path.insert(0, str(SRC_DIR))
+
+from app import main
+
+
+if __name__ == "__main__":
+    main()
--- a/VRWT_Tool/VRC_OSC/src/common/config_loader.py
+++ b/VRWT_Tool/VRC_OSC/src/common/config_loader.py
@@ -0,0 +1,130 @@
+from pathlib import Path
+import tomllib
+
+from common.project_paths import ROOT_DIR
+
+CONFIG_DIR = ROOT_DIR / "config"
+CONFIG_FILE = CONFIG_DIR / "config.toml"
+SECRETS_FILE = CONFIG_DIR / "secrets.toml"
+DEFAULT_EVENT_FILE = CONFIG_DIR / "event.toml"
+DEFAULT_GUEST_FILE = CONFIG_DIR / "guests.txt"
+
+
+def loadTomlFile(path):
+    if not path.exists():
+        return {}
+
+    return tomllib.loads(path.read_text(encoding="utf-8"))
+
+
+def resolveConfigPath(value, default_path):
+    if not value:
+        return default_path
+
+    candidate = Path(value)
+    if candidate.is_absolute():
+        return candidate
+
+    return (ROOT_DIR / candidate).resolve()
+
+
+def loadNameListFile(path):
+    if not path.exists():
+        return []
+
+    names = []
+
+    for line in path.read_text(encoding="utf-8-sig", errors="replace").splitlines():
+        name = line.strip()
+        if not name or name.startswith("#"):
+            continue
+        names.append(name)
+
+    return names
+
+
+def loadSecretConfig():
+    return loadTomlFile(SECRETS_FILE)
+
+
+def getSecretValue(section_name, key, default=""):
+    secrets = loadSecretConfig()
+    section = secrets.get(section_name, {})
+    return str(section.get(key, default)).strip()
+
+
+def loadOcrConfig():
+    config = loadTomlFile(CONFIG_FILE)
+    ocr = config.get("ocr", {})
+    crop = ocr.get("crop", {})
+
+    return {
+        "crop_left": float(crop.get("left", 0.05)),
+        "crop_top": float(crop.get("top", 0.35)),
+        "crop_right": float(crop.get("right", 0.95)),
+        "crop_bottom": float(crop.get("bottom", 0.95)),
+        "preprocess": bool(ocr.get("preprocess", True)),
+        "scale": float(ocr.get("scale", 1.5)),
+        "use_angle_cls": bool(ocr.get("use_angle_cls", False)),
+    }
+
+
+def loadVrcLogConfig():
+    config = loadTomlFile(CONFIG_FILE)
+    vrc_log = config.get("vrc_log", {})
+    self_section = config.get("self", {})
+    event_file_value = (
+        vrc_log.get("event_toml")
+        or vrc_log.get("event_file")
+        or config.get("event_toml")
+        or config.get("event_file")
+    )
+
+    event_file = resolveConfigPath(event_file_value, DEFAULT_EVENT_FILE)
+    event_config = loadTomlFile(event_file)
+
+    if not event_config:
+        event_config = vrc_log or config
+
+    guest_section = event_config.get("guest", {})
+    guest_names = guest_section.get("names", [])
+    guest_file_value = (
+        guest_section.get("file")
+        or event_config.get("guest_file")
+        or config.get("guest_file")
+    )
+    guest_file = resolveConfigPath(guest_file_value, DEFAULT_GUEST_FILE)
+
+    if not guest_names:
+        guest_names = loadNameListFile(guest_file)
+
+    staff_names = event_config.get("staff", {}).get("names", [])
+
+    if not guest_names and isinstance(event_config.get("guest_names"), list):
+        guest_names = event_config.get("guest_names", [])
+    if not staff_names and isinstance(event_config.get("staff_names"), list):
+        staff_names = event_config.get("staff_names", [])
+
+    notice_section = event_config.get("notice", {})
+    missing_count = notice_section.get("missing_count", 0)
+
+    if not missing_count:
+        missing_count = event_config.get("missing_count", 0)
+
+    self_name = (
+        self_section.get("name")
+        or config.get("self_name")
+        or vrc_log.get("self_name")
+        or event_config.get("self", {}).get("name")
+        or ""
+    )
+
+    return {
+        "config_file": CONFIG_FILE,
+        "event_file": event_file,
+        "guest_file": guest_file,
+        "guest_names": [str(name).strip() for name in guest_names if str(name).strip()],
+        "staff_names": [str(name).strip() for name in staff_names if str(name).strip()],
+        "missing_count": int(missing_count),
+        "self_name": str(self_name).strip(),
+    }
--- a/VRWT_Tool/VRC_OSC/src/common/project_paths.py
+++ b/VRWT_Tool/VRC_OSC/src/common/project_paths.py
@@ -0,0 +1,6 @@
+from pathlib import Path
+
+SRC_DIR = Path(__file__).resolve().parents[1]
+ROOT_DIR = SRC_DIR.parent
+RUNTIME_DIR = ROOT_DIR / "runtime"
+RUNTIME_LOG_FILE = RUNTIME_DIR / "runtime.log"
--- a/VRWT_Tool/VRC_OSC/src/common/runtime_log.py
+++ b/VRWT_Tool/VRC_OSC/src/common/runtime_log.py
@@ -0,0 +1,19 @@
+from datetime import datetime
+
+from common.project_paths import RUNTIME_LOG_FILE
+
+
+def appendRuntimeLog(title, text):
+    RUNTIME_LOG_FILE.parent.mkdir(parents=True, exist_ok=True)
+
+    now = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    body = str(text).strip()
+    if not body:
+        body = "(empty)"
+
+    with RUNTIME_LOG_FILE.open("a", encoding="utf-8") as file:
+        file.write(f"\n[{now}] {title}\n")
+        file.write(body)
+        file.write("\n")
+
+    return RUNTIME_LOG_FILE
--- a/VRWT_Tool/VRC_OSC/src/discord_control/actions.py
+++ b/VRWT_Tool/VRC_OSC/src/discord_control/actions.py
@@ -0,0 +1,203 @@
+from datetime import datetime
+import ctypes
+import threading
+import time
+
+import pyautogui
+import pygetwindow as gw
+
+BROWSER_KEYWORDS = [
+    "google chrome",
+    "microsoft edge",
+    "mozilla firefox",
+]
+
+_discord_muted = True
+_discord_mute_lock = threading.Lock()
+
+
+def log(level, message):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+
+def findDiscordWindow():
+    candidates = []
+
+    for window in gw.getAllWindows():
+        title = (window.title or "").strip()
+        if not title:
+            continue
+        if "discord" not in title.lower():
+            continue
+        candidates.append(window)
+
+    if not candidates:
+        raise RuntimeError("Discordウィンドウが見つかりません")
+
+    candidates.sort(key=lambda window: -(window.width * window.height))
+    return candidates[0]
+
+
+def findBrowserWindow():
+    candidates = []
+
+    for window in gw.getAllWindows():
+        title = (window.title or "").strip()
+        if not title:
+            continue
+        lowered = title.lower()
+        if not any(keyword in lowered for keyword in BROWSER_KEYWORDS):
+            continue
+        candidates.append(window)
+
+    if not candidates:
+        raise RuntimeError("ブラウザウィンドウが見つかりません")
+
+    candidates.sort(key=lambda window: -(window.width * window.height))
+    return candidates[0]
+
+
+def findDiscordBrowserWindow():
+    candidates = []
+
+    for window in gw.getAllWindows():
+        title = (window.title or "").strip()
+        if not title:
+            continue
+        lowered = title.lower()
+        if "discord" not in lowered:
+            continue
+        if not any(keyword in lowered for keyword in BROWSER_KEYWORDS):
+            continue
+        candidates.append(window)
+
+    if not candidates:
+        return None
+
+    candidates.sort(key=lambda window: -(window.width * window.height))
+    return candidates[0]
+
+
+def activateDiscordWindow():
+    window = findDiscordWindow()
+    hwnd = getattr(window, "_hWnd", None)
+
+    try:
+        if window.isMinimized:
+            window.restore()
+    except Exception:
+        pass
+
+    if hwnd:
+        try:
+            ctypes.windll.user32.ShowWindow(hwnd, 9)
+        except Exception:
+            pass
+
+    try:
+        window.activate()
+    except Exception as e:
+        log("ERROR", f"Discord activate() failed detail={e}")
+
+    if hwnd:
+        try:
+            ctypes.windll.user32.BringWindowToTop(hwnd)
+            ctypes.windll.user32.SetForegroundWindow(hwnd)
+        except Exception as e:
+            log("ERROR", f"Discord SetForegroundWindow failed detail={e}")
+
+    time.sleep(0.15)
+
+    log("INFO", f"Discord window title={window.title}")
+    return window
+
+
+def findVrchatWindow():
+    candidates = []
+
+    for window in gw.getAllWindows():
+        title = (window.title or "").strip()
+        if not title:
+            continue
+        lowered = title.lower()
+        if lowered == "vrchat":
+            candidates.append((0, window))
+            continue
+        if lowered.startswith("vrchat "):
+            candidates.append((1, window))
+            continue
+        if lowered.startswith("vrchat"):
+            candidates.append((2, window))
+
+    if not candidates:
+        raise RuntimeError("VRChatウィンドウが見つかりません")
+
+    candidates.sort(key=lambda item: (item[0], -(item[1].width * item[1].height)))
+    return candidates[0][1]
+
+
+def activateWindow(window, label):
+    if not window:
+        return
+
+    hwnd = getattr(window, "_hWnd", None)
+
+    try:
+        if window.isMinimized:
+            window.restore()
+    except Exception:
+        pass
+
+    if hwnd:
+        try:
+            ctypes.windll.user32.ShowWindow(hwnd, 9)
+        except Exception:
+            pass
+
+    try:
+        window.activate()
+    except Exception as e:
+        log("ERROR", f"{label} activate() failed detail={e}")
+
+    if hwnd:
+        try:
+            ctypes.windll.user32.BringWindowToTop(hwnd)
+            ctypes.windll.user32.SetForegroundWindow(hwnd)
+        except Exception as e:
+            log("ERROR", f"{label} SetForegroundWindow failed detail={e}")
+
+    time.sleep(0.15)
+    try:
+        pyautogui.click(window.left + window.width // 2, window.top + window.height // 2)
+    except Exception:
+        pass
+    time.sleep(0.1)
+    log("INFO", f"{label} window title={window.title}")
+
+
+def setDiscordMute():
+    log("ACTION", "setDiscordMute called")
+    try:
+        activateDiscordWindow()
+    except Exception as e:
+        log("ERROR", f"Discord window unavailable detail={e}")
+        browser = findDiscordBrowserWindow() or findBrowserWindow()
+        activateWindow(browser, "Browser")
+    log("INFO", "Discord hotkey Ctrl+Shift+M")
+    pyautogui.hotkey("ctrl", "shift", "m")
+    activateWindow(findVrchatWindow(), "VRChat")
+
+
+def setDiscordMuted(muted):
+    global _discord_muted
+
+    muted = bool(muted)
+
+    with _discord_mute_lock:
+        if _discord_muted == muted:
+            log("INFO", f"Discord mute already {'on' if muted else 'off'}")
+            return
+
+        setDiscordMute()
+        _discord_muted = muted
--- a/VRWT_Tool/VRC_OSC/src/ocr/ocr_actions.py
+++ b/VRWT_Tool/VRC_OSC/src/ocr/ocr_actions.py
@@ -0,0 +1,186 @@
+import os
+from datetime import datetime
+
+os.environ["FLAGS_enable_pir_api"] = "0"
+os.environ["FLAGS_use_onednn"] = "0"
+os.environ["FLAGS_use_mkldnn"] = "0"
+os.environ["FLAGS_use_onednn_bfloat16"] = "0"
+os.environ["MKLDNN_DISABLE_WORKSPACE"] = "1"
+os.environ["ONEDNN_VERBOSE"] = "0"
+
+import pyperclip
+from paddleocr import PaddleOCR
+from PIL import Image
+from PIL import ImageFilter
+from PIL import ImageOps
+
+from common.config_loader import loadOcrConfig
+from common.runtime_log import appendRuntimeLog
+from screen.screen_actions import captureOcrRegion
+
+_ocr_engine = None
+
+
+def log(level, message):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+
+def getOcrEngine():
+    global _ocr_engine
+
+    if _ocr_engine is None:
+        log("INFO", "PaddleOCR initializing")
+        config = loadOcrConfig()
+        options = {
+            "lang": "japan",
+            "use_angle_cls": config["use_angle_cls"],
+            "show_log": False,
+        }
+
+        try:
+            _ocr_engine = PaddleOCR(**options)
+        except (TypeError, ValueError):
+            options.pop("show_log", None)
+            _ocr_engine = PaddleOCR(**options)
+
+    return _ocr_engine
+
+
+def saveOcrText(image_path, text):
+    return appendRuntimeLog(
+        "OCR TEXT",
+        f"image={image_path}\n{text}",
+    )
+
+
+def extractTextFromAny(obj):
+    lines = []
+
+    def walk(x):
+        if x is None:
+            return
+
+        if isinstance(x, dict):
+            for key in ("rec_texts", "texts"):
+                value = x.get(key)
+                if isinstance(value, list):
+                    for item in value:
+                        text = str(item).strip()
+                        if text:
+                            lines.append(text)
+
+            for key in ("text", "rec_text"):
+                value = x.get(key)
+                if isinstance(value, str) and value.strip():
+                    lines.append(value.strip())
+
+            for value in x.values():
+                walk(value)
+            return
+
+        if isinstance(x, (list, tuple)):
+            if len(x) >= 2 and isinstance(x[1], (list, tuple)) and len(x[1]) >= 1:
+                candidate = x[1][0]
+                if isinstance(candidate, str) and candidate.strip():
+                    lines.append(candidate.strip())
+
+            for item in x:
+                walk(item)
+
+    walk(obj)
+
+    unique_lines = []
+    seen = set()
+    for line in lines:
+        if line not in seen:
+            unique_lines.append(line)
+            seen.add(line)
+
+    return "\n".join(unique_lines)
+
+
+def printOcrResult(text):
+    cleaned = text.strip()
+    if not cleaned:
+        log("INFO", "OCR結果は空です")
+        return
+
+    log("CHECK", "OCR結果 full")
+    for line in cleaned.splitlines():
+        print(line, flush=True)
+
+
+def preprocessOcrImage(image_path):
+    config = loadOcrConfig()
+    enabled = config["preprocess"]
+    if not enabled:
+        return image_path
+
+    try:
+        image = Image.open(image_path)
+        image = image.convert("L")
+        image = ImageOps.autocontrast(image)
+        image = image.filter(ImageFilter.SHARPEN)
+
+        scale = max(1.0, min(2.0, config["scale"]))
+        if scale > 1.0:
+            width, height = image.size
+            resampling = getattr(
+                getattr(Image, "Resampling", Image),
+                "LANCZOS",
+            )
+            image = image.resize(
+                (int(width * scale), int(height * scale)),
+                resampling,
+            )
+
+        image.save(image_path)
+        log("INFO", f"OCR image preprocessed={image_path}")
+    except Exception as e:
+        log("ERROR", f"OCR preprocess failed detail={e}")
+
+    return image_path
+
+
+def runPaddleOcr(engine, image_path):
+    if hasattr(engine, "predict"):
+        return engine.predict(str(image_path))
+    return engine.ocr(str(image_path))
+
+
+def runOcrFromImage(image_path, show_result=True):
+    log("ACTION", f"PaddleOCR start image={image_path}")
+
+    try:
+        image_path = preprocessOcrImage(image_path)
+        engine = getOcrEngine()
+        result = runPaddleOcr(engine, image_path)
+    except Exception as e:
+        log("ERROR", f"PaddleOCR failed detail={e}")
+        return None
+
+    text = extractTextFromAny(result)
+    text_path = saveOcrText(image_path, text)
+
+    try:
+        pyperclip.copy(text)
+        log("INFO", "OCR結果をクリップボードへコピーしました")
+    except Exception as e:
+        log("ERROR", f"clipboard copy failed detail={e}")
+
+    log("INFO", f"OCR text appended={text_path}")
+    if show_result:
+        printOcrResult(text)
+
+    return {
+        "image_path": image_path,
+        "text_path": text_path,
+        "text": text,
+    }
+
+
+def runOcrFromScreen():
+    log("ACTION", "runOcrFromScreen called")
+    image_path = captureOcrRegion()
+    return runOcrFromImage(image_path, show_result=True)
--- a/VRWT_Tool/VRC_OSC/src/osc/gateway.py
+++ b/VRWT_Tool/VRC_OSC/src/osc/gateway.py
@@ -0,0 +1,85 @@
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+from datetime import datetime
+import sys
+
+class VrcOscGateway:
+    def __init__(self, host="127.0.0.1", port=9001):
+        self.host = host
+        self.port = port
+        self.dispatcher = Dispatcher()
+        self.last_values = {}
+
+    def log(self, level, message):
+        now = datetime.now().strftime("%H:%M:%S")
+        print(f"[{level}] {now} {message}", flush=True)
+
+    def to_bool(self, value):
+        if isinstance(value, bool):
+            return value
+
+        if isinstance(value, int) or isinstance(value, float):
+            return value != 0
+
+        if isinstance(value, str):
+            lowered = value.strip().lower()
+            if lowered in ("true", "1", "on"):
+                return True
+            if lowered in ("false", "0", "off"):
+                return False
+
+        raise ValueError(f"unsupported OSC value: {value}")
+
+    def is_rising_edge(self, address, value):
+        current = self.to_bool(value)
+        previous = self.last_values.get(address, False)
+        self.last_values[address] = current
+        return current and not previous
+
+    def is_changed(self, address, value):
+        current = self.to_bool(value)
+        previous = self.last_values.get(address, None)
+
+        if previous == current:
+            return False
+
+        self.last_values[address] = current
+        return True
+
+    def map(self, parameter_name, handler):
+        address = f"/avatar/parameters/{parameter_name}"
+        self.dispatcher.map(address, handler)
+        self.log("INFO", f"mapped {address}")
+
+    def set_default_debug(self, enabled=False):
+        if not enabled:
+            return
+
+        def on_any(address, *args):
+            if address.startswith("/avatar/parameters/"):
+                self.log("INFO", f"other address={address} args={args}")
+
+        self.dispatcher.set_default_handler(on_any)
+
+    def serve_forever(self):
+        self.log("CHECK", "STEP=1 状態確認")
+        self.log("INFO", f"listen={self.host}:{self.port}")
+
+        self.log("CHECK", "STEP=2 想定状態判定")
+        self.log("INFO", "VRChat OSC Enabled")
+        self.log("INFO", "Python は Windows PowerShell 側で実行")
+        self.log("INFO", "Unity側 MA Parameters と OSC名が一致していること")
+
+
+        try:
+            server = BlockingOSCUDPServer((self.host, self.port), self.dispatcher)
+            server.serve_forever()
+        except KeyboardInterrupt:
+            self.log("INFO", "Ctrl+C detected")
+        except Exception as e:
+            self.log("FATAL", f"OSC server error STEP=3 detail={e}")
+            input("Press Enter to exit...")
+            sys.exit(1)
+
+        self.log("CHECK", "STEP=4 結果確認")
+        self.log("INFO", "終了しました")
--- a/VRWT_Tool/VRC_OSC/src/screen/screen_actions.py
+++ b/VRWT_Tool/VRC_OSC/src/screen/screen_actions.py
@@ -0,0 +1,167 @@
+import pyautogui
+import pygetwindow as gw
+
+from common.config_loader import loadOcrConfig
+from common.project_paths import RUNTIME_DIR
+
+SCREENSHOT_PATH = RUNTIME_DIR / "latest_screenshot.png"
+OCR_SCREENSHOT_PATH = RUNTIME_DIR / "latest_ocr.png"
+
+EXCLUDED_WINDOW_KEYWORDS = [
+    "Google Chrome",
+    "Microsoft Edge",
+    "Mozilla Firefox",
+    "Visual Studio Code",
+    "PowerShell",
+    "Windows Terminal",
+    "ChatGPT",
+]
+
+
+def log(level, message):
+    from datetime import datetime
+
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+
+def findVrchatWindow():
+    windows = gw.getAllWindows()
+    candidates = []
+
+    for window in windows:
+        title = window.title or ""
+        normalized = title.strip().lower()
+        if not normalized:
+            continue
+        if any(keyword.lower() in normalized for keyword in EXCLUDED_WINDOW_KEYWORDS):
+            continue
+
+        if normalized == "vrchat":
+            candidates.append((0, window))
+            continue
+        if normalized.startswith("vrchat "):
+            candidates.append((1, window))
+            continue
+        if normalized.startswith("vrchat"):
+            candidates.append((2, window))
+
+    if not candidates:
+        visible_titles = []
+        for window in windows:
+            title = (window.title or "").strip()
+            if title:
+                visible_titles.append(title)
+
+        log("ERROR", "VRChatウィンドウが見つかりません")
+        log("CHECK", "現在検出できるウィンドウ")
+        for title in visible_titles[:30]:
+            print(title, flush=True)
+
+        raise RuntimeError("VRChatウィンドウが見つかりません")
+
+    candidates = sorted(
+        candidates,
+        key=lambda item: (item[0], -(item[1].width * item[1].height)),
+    )
+    window = candidates[0][1]
+
+    if window.width <= 0 or window.height <= 0:
+        raise RuntimeError("VRChatウィンドウサイズが不正です")
+
+    return window
+
+
+def getVrchatRegion():
+    window = findVrchatWindow()
+
+    try:
+        if window.isMinimized:
+            window.restore()
+    except Exception:
+        pass
+
+    left = int(window.left)
+    top = int(window.top)
+    width = int(window.width)
+    height = int(window.height)
+
+    if width <= 0 or height <= 0:
+        raise RuntimeError("VRChatウィンドウ範囲が不正です")
+
+    log("INFO", f"VRChat window title={window.title}")
+    log("INFO", f"VRChat region left={left} top={top} width={width} height={height}")
+    return left, top, width, height
+
+
+def clampRatio(value):
+    return max(0.0, min(1.0, value))
+
+
+def getOcrRegion():
+    left, top, width, height = getVrchatRegion()
+    config = loadOcrConfig()
+
+    # Default to the lower central area. It is much faster than OCRing the
+    # whole VRChat window and usually contains chat/subtitle text.
+    crop_left = clampRatio(config["crop_left"])
+    crop_top = clampRatio(config["crop_top"])
+    crop_right = clampRatio(config["crop_right"])
+    crop_bottom = clampRatio(config["crop_bottom"])
+
+    if crop_right <= crop_left:
+        crop_left = 0.0
+        crop_right = 1.0
+
+    if crop_bottom <= crop_top:
+        crop_top = 0.0
+        crop_bottom = 1.0
+
+    region_left = left + int(width * crop_left)
+    region_top = top + int(height * crop_top)
+    region_width = max(1, int(width * (crop_right - crop_left)))
+    region_height = max(1, int(height * (crop_bottom - crop_top)))
+
+    log(
+        "INFO",
+        f"OCR crop left={region_left} top={region_top} width={region_width} height={region_height}",
+    )
+    return region_left, region_top, region_width, region_height
+
+
+def captureRegionTo(image_path, region):
+    image_path.parent.mkdir(parents=True, exist_ok=True)
+
+    left, top, width, height = region
+
+    image = pyautogui.screenshot(region=(left, top, width, height))
+    image.save(image_path)
+
+    log("ACTION", f"captureVrchatWindow saved={image_path}")
+    return image_path
+
+
+def captureVrchatWindowTo(image_path):
+    return captureRegionTo(
+        image_path,
+        getVrchatRegion(),
+    )
+
+
+def captureVrchatWindow():
+    return captureVrchatWindowTo(SCREENSHOT_PATH)
+
+
+def captureOcrRegion():
+    return captureRegionTo(
+        OCR_SCREENSHOT_PATH,
+        getOcrRegion(),
+    )
+
+
+def captureScreen():
+    return captureVrchatWindow()
+
+
+def takeScreenshot():
+    return captureVrchatWindow()
--- a/VRWT_Tool/VRC_OSC/src/tools/discord_hold_mute_listener.py
+++ b/VRWT_Tool/VRC_OSC/src/tools/discord_hold_mute_listener.py
@@ -0,0 +1,124 @@
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+from datetime import datetime
+import pyautogui
+import time
+import sys
+
+HOST = "127.0.0.1"
+PORT = 9001
+PARAMETER = "/avatar/parameters/DiscordSend"
+
+# Discordの初期状態を「ミュート中」と仮定
+discord_muted = True
+button_pressed = False
+last_action_time = 0.0
+DEBOUNCE_SECONDS = 0.3
+
+def log(level, message):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+def wait_exit():
+    input("Press Enter to exit...")
+
+def press_discord_mute_hotkey():
+    pyautogui.hotkey("ctrl", "shift", "m")
+
+def handle_discord_send(address, *args):
+    global discord_muted
+    global button_pressed
+    global last_action_time
+
+    if not args:
+        log("ERROR", "OSC args is empty")
+        return
+
+    value = args[0]
+    now_ts = time.time()
+
+    if isinstance(value, bool):
+        is_pressed = value
+    elif isinstance(value, int) or isinstance(value, float):
+        is_pressed = value != 0
+    else:
+        log("ERROR", f"unsupported value type value={value}")
+        return
+
+    if now_ts - last_action_time < DEBOUNCE_SECONDS:
+        return
+
+    # 押した瞬間: ミュート解除
+    if is_pressed and not button_pressed:
+        button_pressed = True
+
+        if discord_muted:
+            log("ACTION", "VRChat button pressed -> Discord unmute hotkey")
+            press_discord_mute_hotkey()
+            discord_muted = False
+            last_action_time = now_ts
+        else:
+            log("INFO", "already unmuted")
+
+        return
+
+    # 離した瞬間: ミュート
+    if not is_pressed and button_pressed:
+        button_pressed = False
+
+        if not discord_muted:
+            log("ACTION", "VRChat button released -> Discord mute hotkey")
+            press_discord_mute_hotkey()
+            discord_muted = True
+            last_action_time = now_ts
+        else:
+            log("INFO", "already muted")
+
+        return
+
+def main():
+    log("CHECK", "STEP=1 OSC受信状態確認")
+    log("INFO", f"host={HOST}")
+    log("INFO", f"port={PORT}")
+    log("INFO", f"parameter={PARAMETER}")
+
+    log("CHECK", "STEP=2 想定状態判定")
+    log("INFO", "Windows PowerShellで実行していること")
+    log("INFO", "VRChat OSC Enabledであること")
+    log("INFO", "Discordのミュート切替キーが Ctrl+Shift+M であること")
+    log("INFO", "Discordの現在状態はミュート中として扱います")
+
+    answer = input("[ACTION] 続行しますか？ yes/no: ").strip().lower()
+
+    if answer != "yes":
+        if answer == "no":
+            log("FATAL", "ユーザー操作により停止 STEP=2")
+            wait_exit()
+            sys.exit(1)
+
+        log("ERROR", "不正入力です STEP=2")
+        wait_exit()
+        sys.exit(1)
+
+    log("ACTION", "STEP=3 OSC受信開始")
+    log("INFO", "VRChatのメニューを押している間だけDiscordミュート解除します")
+    log("INFO", "停止する場合は Ctrl+C")
+
+    dispatcher = Dispatcher()
+    dispatcher.map(PARAMETER, handle_discord_send)
+
+    try:
+        server = BlockingOSCUDPServer((HOST, PORT), dispatcher)
+        server.serve_forever()
+    except KeyboardInterrupt:
+        log("INFO", "Ctrl+C detected")
+    except Exception as e:
+        log("FATAL", f"OSC server error STEP=3 detail={e}")
+        wait_exit()
+        sys.exit(1)
+
+    log("CHECK", "STEP=4 結果確認")
+    log("INFO", "終了しました")
+
+if __name__ == "__main__":
+    main()
--- a/VRWT_Tool/VRC_OSC/src/tools/osc_debug_listener.py
+++ b/VRWT_Tool/VRC_OSC/src/tools/osc_debug_listener.py
@@ -0,0 +1,21 @@
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+from datetime import datetime
+
+HOST = "127.0.0.1"
+PORT = 9001
+
+def on_any(address, *args):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[INFO] {now} address={address} args={args}", flush=True)
+
+dispatcher = Dispatcher()
+dispatcher.set_default_handler(on_any)
+
+print("[CHECK] OSC受信開始")
+print(f"[INFO] host={HOST}")
+print(f"[INFO] port={PORT}")
+print("[ACTION] VRChatでメニューを押してください")
+
+server = BlockingOSCUDPServer((HOST, PORT), dispatcher)
+server.serve_forever()
--- a/VRWT_Tool/VRC_OSC/src/tools/osc_test_print_listener.py
+++ b/VRWT_Tool/VRC_OSC/src/tools/osc_test_print_listener.py
@@ -0,0 +1,54 @@
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+from datetime import datetime
+
+HOST = "127.0.0.1"
+PORT = 9001
+
+def log(msg):
+    print(msg, flush=True)
+
+def on_test(address, *args):
+    now = datetime.now().strftime("%H:%M:%S")
+
+    log("")
+    log(f"[INFO] time={now}")
+    log(f"[ACTION] OSC parameter received")
+    log(f"[INFO] address={address}")
+    log(f"[INFO] args={args}")
+
+dispatcher = Dispatcher()
+
+dispatcher.map(
+    "/avatar/parameters/TestPrint",
+    on_test
+)
+
+log("[CHECK] STEP=1 OSC待受開始")
+log(f"[INFO] host={HOST}")
+log(f"[INFO] port={PORT}")
+
+try:
+    server = BlockingOSCUDPServer(
+        (HOST, PORT),
+        dispatcher
+    )
+
+    log("[INFO] OSC server started")
+    log("[ACTION] VRChatでTestPrintを押してください")
+
+    server.serve_forever()
+
+except KeyboardInterrupt:
+    log("")
+    log("[INFO] Ctrl+C detected")
+    log("[INFO] shutdown")
+
+except Exception as e:
+    log("")
+    log("[FATAL] OSC server error")
+    log(f"[ERROR] detail={e}")
+
+    print("")
+    input("Press Enter to exit...")
+    raise SystemExit(1)
--- a/VRWT_Tool/VRC_OSC/src/tools/resolve_vrchat_user.py
+++ b/VRWT_Tool/VRC_OSC/src/tools/resolve_vrchat_user.py
@@ -0,0 +1,134 @@
+import re
+from http.cookiejar import MozillaCookieJar
+
+import vrchatapi
+from vrchatapi.api import authentication_api
+from vrchatapi.api import users_api
+from vrchatapi.exceptions import UnauthorizedException
+from vrchatapi.models.two_factor_auth_code import TwoFactorAuthCode
+from vrchatapi.models.two_factor_email_code import TwoFactorEmailCode
+
+from common.config_loader import getSecretValue
+
+COOKIE_FILE = ".vrchat_cookie.txt"
+
+USER_AGENT = (
+    "VRC_OSC/1.0 "
+    "(contact: test@gmail.com)"
+)
+
+
+def get_required_secret(section, key):
+    value = getSecretValue(section, key)
+    if not value:
+        raise RuntimeError(f"{section}.{key} is not set in config/secrets.toml")
+    return value
+
+
+def setup_cookie_jar(api_client):
+    cookie_jar = MozillaCookieJar(COOKIE_FILE)
+
+    if os.path.exists(COOKIE_FILE):
+        try:
+            cookie_jar.load(
+                ignore_discard=True,
+                ignore_expires=True,
+            )
+        except Exception:
+            pass
+
+    api_client.rest_client.cookie_jar = cookie_jar
+    return cookie_jar
+
+
+def save_cookie_jar(cookie_jar):
+    try:
+        cookie_jar.save(
+            ignore_discard=True,
+            ignore_expires=True,
+        )
+    except Exception:
+        pass
+
+
+def login(api_client, cookie_jar):
+    auth_api = authentication_api.AuthenticationApi(api_client)
+
+    try:
+        current_user = auth_api.get_current_user()
+        save_cookie_jar(cookie_jar)
+        return current_user
+
+    except UnauthorizedException as e:
+        reason = str(e.reason)
+
+        if "Email 2 Factor Authentication" in reason:
+            code = input("Email 2FA Code: ").strip()
+
+            auth_api.verify2_fa_email_code(
+                TwoFactorEmailCode(code)
+            )
+
+        elif "2 Factor Authentication" in reason:
+            code = input("TOTP Code: ").strip()
+
+            auth_api.verify2_fa(
+                TwoFactorAuthCode(code)
+            )
+
+        else:
+            raise
+
+        current_user = auth_api.get_current_user()
+
+        save_cookie_jar(cookie_jar)
+
+        return current_user
+
+
+def extract_user_id(text):
+    match = re.search(
+        r"(usr_[0-9a-fA-F\-]+)",
+        text,
+    )
+
+    if not match:
+        return None
+
+    return match.group(1)
+
+
+def main():
+    text = input("参加者名: ").strip()
+
+    user_id = extract_user_id(text)
+
+    if not user_id:
+        print(text)
+        return
+
+    configuration = vrchatapi.Configuration(
+        username=get_required_secret("vrchat", "username"),
+        password=get_required_secret("vrchat", "password"),
+    )
+
+    with vrchatapi.ApiClient(configuration) as api_client:
+        api_client.user_agent = USER_AGENT
+
+        api_client.default_headers["User-Agent"] = USER_AGENT
+
+        cookie_jar = setup_cookie_jar(api_client)
+
+        login(api_client, cookie_jar)
+
+        users = users_api.UsersApi(api_client)
+
+        user = users.get_user(user_id)
+
+        print(user.display_name)
+
+        save_cookie_jar(cookie_jar)
+
+
+if __name__ == "__main__":
+    main()
--- a/VRWT_Tool/VRC_OSC/src/translate/translate_actions.py
+++ b/VRWT_Tool/VRC_OSC/src/translate/translate_actions.py
@@ -0,0 +1,102 @@
+from datetime import datetime
+import re
+
+import pyperclip
+from deep_translator import GoogleTranslator
+
+from common.runtime_log import appendRuntimeLog
+
+IGNORE_EXACT = {
+    "戻る",
+    "翻訳",
+    "OCR",
+    "VRCLOG",
+    "Discord_Mute",
+    "Screenshot",
+    "OCR_Toggle",
+    "DCR_Toggle",
+    "HI",
+}
+
+
+def log(level, message):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+
+def saveTranslationText(stem, text):
+    return appendRuntimeLog(
+        "TRANSLATION TEXT",
+        f"source={stem}\n{text}",
+    )
+
+
+def looksLikeNoise(line):
+    value = line.strip()
+    if not value:
+        return True
+    if value in IGNORE_EXACT:
+        return True
+    if len(value) <= 2:
+        return True
+    if "_" in value:
+        return True
+    if re.fullmatch(r"[A-Za-z0-9\-_/]+", value):
+        return True
+    return False
+
+
+def normalizeSourceText(text):
+    lines = []
+
+    for raw_line in text.splitlines():
+        line = raw_line.strip()
+        if looksLikeNoise(line):
+            continue
+        lines.append(line)
+
+    unique_lines = []
+    seen = set()
+    for line in lines:
+        if line not in seen:
+            unique_lines.append(line)
+            seen.add(line)
+
+    return "\n".join(unique_lines).strip()
+
+
+def translateTextToJapanese(text):
+    source = normalizeSourceText(text)
+    if not source:
+        log("INFO", "翻訳対象が空です")
+        return ""
+
+    log("CHECK", "Translation source")
+    for line in source.splitlines():
+        print(line, flush=True)
+
+    try:
+        translated = GoogleTranslator(
+            source="auto",
+            target="ja",
+        ).translate(source)
+    except Exception as e:
+        log("ERROR", f"translation failed detail={e}")
+        return ""
+
+    translated = translated.strip()
+    if not translated:
+        log("INFO", "翻訳結果は空です")
+        return ""
+
+    try:
+        pyperclip.copy(translated)
+        log("INFO", "翻訳結果をクリップボードへコピーしました")
+    except Exception as e:
+        log("ERROR", f"clipboard copy failed detail={e}")
+
+    log("CHECK", "Translation result")
+    for line in translated.splitlines():
+        print(line, flush=True)
+
+    return translated
--- a/VRWT_Tool/VRC_OSC/src/vrc_log/log_actions.py
+++ b/VRWT_Tool/VRC_OSC/src/vrc_log/log_actions.py
@@ -0,0 +1,563 @@
+import os
+import re
+import subprocess
+import tempfile
+import threading
+import time
+from datetime import datetime
+from datetime import timedelta
+from pathlib import Path
+
+from common.config_loader import loadVrcLogConfig
+from common.config_loader import getSecretValue
+from common.runtime_log import appendRuntimeLog
+from discord_control.actions import setDiscordMuted
+
+_monitor_thread = None
+_monitor_stop_event = threading.Event()
+_last_sent_output = None
+_self_monitor_thread = None
+_self_monitor_stop_event = threading.Event()
+_last_self_state = None
+REALTIME_IDLE_SECONDS = 0.2
+
+JOIN_PATTERN = re.compile(
+    r"OnPlayerJoined\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)"
+)
+LEFT_PATTERN = re.compile(
+    r"OnPlayerLeft\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)"
+)
+WORLD_PATTERN = re.compile(
+    r"(wrld_[0-9a-fA-F-]+(?::[^\s\]\)\"']+)?)"
+)
+ENTERING_ROOM_PATTERN = re.compile(
+    r"\[Behaviour\]\s+(?:Entering Room|Joining or Creating Room):\s+(.+)$"
+)
+WORLD_NAME_PATTERN = re.compile(
+    r"worldId=(wrld_[0-9a-fA-F-]+)(?::[^,}]*)?,\s*worldName=([^,}]+)"
+)
+TIME_PATTERN = re.compile(
+    r"(\d{4}\.\d{2}\.\d{2}\s+\d{2}:\d{2}:\d{2})"
+)
+RELEVANT_LOG_PATTERN = re.compile(
+    r"OnPlayerJoined|OnPlayerLeft|Entering Room|Joining or Creating Room|worldId=|wrld_"
+)
+
+
+def log(level, message):
+    now = datetime.now().strftime("%H:%M:%S")
+    print(f"[{level}] {now} {message}", flush=True)
+
+
+def getWebhookUrl():
+    return getSecretValue("discord", "webhook_url")
+
+
+def sendWebhook(text):
+    webhook_url = getWebhookUrl().strip()
+    if not webhook_url:
+        log("ERROR", "Discord webhook URL is not set config=config/secrets.toml")
+        return False
+
+    message = str(text).strip()
+    if not message:
+        log("INFO", "Webhook送信内容が空です")
+        return False
+
+    if len(message) > 1800:
+        message = message[-1800:]
+
+    ps_script = r'''
+param(
+    [string]$WebhookUrl,
+    [string]$Message
+)
+
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
+$Payload = @{ content = $Message } | ConvertTo-Json -Compress
+$Body = [System.Text.Encoding]::UTF8.GetBytes($Payload)
+Invoke-WebRequest -Uri $WebhookUrl -Method Post -ContentType 'application/json; charset=utf-8' -Body $Body -UseBasicParsing | Out-Null
+'''
+
+    ps_path = None
+
+    try:
+        with tempfile.NamedTemporaryFile(
+            mode="w",
+            suffix=".ps1",
+            delete=False,
+            encoding="utf-8-sig",
+        ) as tmp:
+            tmp.write(ps_script)
+            ps_path = tmp.name
+
+        result = subprocess.run(
+            [
+                "powershell",
+                "-NoProfile",
+                "-ExecutionPolicy",
+                "Bypass",
+                "-File",
+                ps_path,
+                webhook_url,
+                message,
+            ],
+            capture_output=True,
+            text=True,
+            timeout=20,
+        )
+    except Exception as e:
+        log("ERROR", f"Discord webhook PowerShell failed detail={e}")
+        return False
+    finally:
+        if ps_path:
+            try:
+                Path(ps_path).unlink(missing_ok=True)
+            except Exception:
+                pass
+
+    if result.returncode != 0:
+        stderr = (result.stderr or "").strip()
+        stdout = (result.stdout or "").strip()
+        log("ERROR", f"Discord webhook PowerShell failed code={result.returncode} stderr={stderr} stdout={stdout}")
+        return False
+
+    log("INFO", "Discord webhook sent via PowerShell")
+    return True
+
+
+def getVrchatLogDir():
+    userprofile = os.environ.get("USERPROFILE")
+    if not userprofile:
+        raise RuntimeError("USERPROFILE が取得できません")
+    return Path(userprofile) / "AppData" / "LocalLow" / "VRChat" / "VRChat"
+
+
+def findLatestVrchatLog():
+    log_dir = getVrchatLogDir()
+    if not log_dir.exists():
+        raise RuntimeError(f"VRChatログディレクトリが存在しません: {log_dir}")
+
+    candidates = []
+    for pattern in ("output_log_*.txt", "Player.log", "*.log", "*.txt"):
+        candidates.extend(log_dir.glob(pattern))
+
+    candidates = [path for path in candidates if path.is_file()]
+    if not candidates:
+        raise RuntimeError(f"VRChatログファイルが見つかりません: {log_dir}")
+
+    candidates.sort(key=lambda path: path.stat().st_mtime, reverse=True)
+    return candidates[0]
+
+
+def readTextSafe(path):
+    for encoding in ("utf-8", "utf-8-sig", "cp932", "shift_jis"):
+        try:
+            return path.read_text(encoding=encoding, errors="replace")
+        except Exception:
+            continue
+
+    raise RuntimeError(f"ログファイルを読めません: {path}")
+
+
+def parseLineTime(line):
+    matched = TIME_PATTERN.search(line)
+    if not matched:
+        return None
+
+    return datetime.strptime(matched.group(1), "%Y.%m.%d %H:%M:%S")
+
+
+def formatClock(dt):
+    return dt.strftime("%H:%M")
+
+
+def getLogStartTime(now):
+    noon_today = now.replace(hour=12, minute=0, second=0, microsecond=0)
+    if now >= noon_today:
+        return noon_today
+    return noon_today - timedelta(days=1)
+
+
+def splitWorldLocation(location):
+    if ":" not in location:
+        return location, ""
+
+    world_id, instance_id = location.split(":", 1)
+    return world_id, instance_id
+
+
+def extractWorldNameMap(text):
+    world_name_map = {}
+    pending_world_name = ""
+
+    for raw_line in text.splitlines():
+        room_match = ENTERING_ROOM_PATTERN.search(raw_line)
+        if room_match:
+            pending_world_name = room_match.group(1).strip()
+
+        match = WORLD_NAME_PATTERN.search(raw_line)
+        if match:
+            world_id = match.group(1).strip()
+            world_name = match.group(2).strip()
+            if world_id and world_name:
+                world_name_map[world_id] = world_name
+            continue
+
+        world_match = WORLD_PATTERN.search(raw_line)
+        if world_match and pending_world_name:
+            location = world_match.group(1).strip()
+            world_id, _ = splitWorldLocation(location)
+            if world_id:
+                world_name_map[world_id] = pending_world_name
+                pending_world_name = ""
+
+    return world_name_map
+
+
+def formatWorldLabel(world_id, world_name_map):
+    world_name = world_name_map.get(world_id, "").strip()
+    if not world_name:
+        return "不明"
+    return world_name
+
+
+def classifyUser(name, guest_names, staff_names):
+    if name in staff_names:
+        return "staff"
+    if name in guest_names:
+        return "guest"
+    return "other"
+
+
+def isSelf(name, self_name):
+    return bool(self_name) and name.strip() == self_name.strip()
+
+
+def buildNoticeLines(guest_names, guest_present_set, missing_count):
+    total_guest = len(guest_names)
+    current_guest = len(guest_present_set)
+    threshold = total_guest - missing_count
+
+    if missing_count <= 0:
+        return []
+    if not (threshold <= current_guest < total_guest):
+        return []
+
+    missing_guests = [name for name in guest_names if name not in guest_present_set]
+    if not missing_guests:
+        return []
+
+    lines = [f"現在Guest: {current_guest}/{total_guest}", "未入室Guest:"]
+    lines.extend(f"- {name}" for name in missing_guests)
+    return lines
+
+
+def appendNoticeIfNeeded(output_lines, state):
+    notice_lines = buildNoticeLines(
+        state["guest_names"],
+        state["guest_present_set"],
+        state["missing_count"],
+    )
+    notice_key = tuple(notice_lines)
+
+    if not notice_lines:
+        state["last_notice_key"] = None
+        return
+
+    if state["last_notice_key"] == notice_key:
+        return
+
+    output_lines.extend(notice_lines)
+    state["last_notice_key"] = notice_key
+
+
+def parseVrchatEvents(text, config):
+    start_time = getLogStartTime(datetime.now())
+    guest_names = config["guest_names"]
+    staff_names = set(config["staff_names"])
+    self_name = config.get("self_name", "")
+    world_name_map = extractWorldNameMap(text)
+
+    state = {
+        "location": "",
+        "world_id": "",
+        "instance_id": "",
+        "guest_names": guest_names,
+        "guest_name_set": set(guest_names),
+        "staff_names": staff_names,
+        "guest_present_set": set(),
+        "staff_present_set": set(),
+        "member_present_set": set(),
+        "missing_count": config["missing_count"],
+        "last_notice_key": None,
+    }
+    output_lines = []
+    self_state = None
+
+    for raw_line in text.splitlines():
+        line_time = parseLineTime(raw_line)
+        if not line_time or line_time < start_time:
+            continue
+
+        world_match = WORLD_PATTERN.search(raw_line)
+        if world_match:
+            location = world_match.group(1).strip()
+            world_id, instance_id = splitWorldLocation(location)
+
+            if location != state["location"]:
+                state["location"] = location
+                state["world_id"] = world_id
+                state["instance_id"] = instance_id
+                state["guest_present_set"].clear()
+                state["staff_present_set"].clear()
+                state["member_present_set"].clear()
+                state["last_notice_key"] = None
+                output_lines = []
+                output_lines.append(f"ワールド入室: {formatWorldLabel(world_id, world_name_map)}")
+                output_lines.append(f"現在Guest: 0/{len(guest_names)}")
+
+        join_match = JOIN_PATTERN.search(raw_line)
+        if join_match and state["world_id"]:
+            name = join_match.group(1).strip()
+            if isSelf(name, self_name):
+                self_state = "joined"
+                state["member_present_set"].add(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [join] [self] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+                continue
+
+            role = classifyUser(name, state["guest_name_set"], state["staff_names"])
+
+            if role == "guest":
+                state["guest_present_set"].add(name)
+                state["member_present_set"].add(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [join] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+                appendNoticeIfNeeded(output_lines, state)
+            elif role == "staff":
+                state["staff_present_set"].add(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [join] [staff] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+            else:
+                state["member_present_set"].add(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [join] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+            continue
+
+        left_match = LEFT_PATTERN.search(raw_line)
+        if left_match and state["world_id"]:
+            name = left_match.group(1).strip()
+            if isSelf(name, self_name):
+                self_state = "left"
+                state["member_present_set"].discard(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [leave] [self] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+                continue
+
+            role = classifyUser(name, state["guest_name_set"], state["staff_names"])
+
+            if role == "guest":
+                state["guest_present_set"].discard(name)
+                state["member_present_set"].discard(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [leave] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+                appendNoticeIfNeeded(output_lines, state)
+            elif role == "staff":
+                state["staff_present_set"].discard(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [leave] [staff] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+            else:
+                state["member_present_set"].discard(name)
+                output_lines.append(
+                    f'[{formatClock(line_time)}] [leave] {name} {len(state["member_present_set"])}/{len(guest_names)}'
+                )
+
+    return output_lines, self_state
+
+
+def extractLatestSelfLogState(text, self_name):
+    if not self_name:
+        return None
+
+    latest_state = None
+
+    for raw_line in text.splitlines():
+        join_match = JOIN_PATTERN.search(raw_line)
+        if join_match and isSelf(join_match.group(1).strip(), self_name):
+            latest_state = "joined"
+            continue
+
+        left_match = LEFT_PATTERN.search(raw_line)
+        if left_match and isSelf(left_match.group(1).strip(), self_name):
+            latest_state = "left"
+
+    return latest_state
+
+
+def grepVrchatLog(pattern=None):
+    return collectVrchatLog(pattern=pattern, notify_changed=False)
+
+
+def collectVrchatLog(pattern=None, notify_changed=True):
+    config = loadVrcLogConfig()
+    latest_log = findLatestVrchatLog()
+    log("ACTION", f"parseVrchatLog file={latest_log}")
+    log("INFO", f'event_file={config["event_file"]}')
+
+    text = readTextSafe(latest_log)
+    lines, self_state = parseVrchatEvents(text, config)
+
+    output_text = "\n".join(lines) if lines else "[INFO] 対象イベントなし"
+    output_path = appendRuntimeLog("VRC LOG", output_text)
+
+    if notify_changed:
+        global _last_sent_output
+        if output_text != _last_sent_output:
+            try:
+                ok = sendWebhook(output_text)
+                if ok:
+                    log("INFO", "Discord webhook sent")
+                    _last_sent_output = output_text
+                else:
+                    log("ERROR", "Discord webhook send failed")
+            except Exception as e:
+                log("ERROR", f"Discord webhook failed detail={e}")
+
+    log("INFO", f"result appended={output_path}")
+    for line in lines or ["[INFO] 対象イベントなし"]:
+        print(line, flush=True)
+
+    return output_path
+
+
+def _readNewText(path, offset):
+    for encoding in ("utf-8", "utf-8-sig", "cp932", "shift_jis"):
+        try:
+            with path.open("r", encoding=encoding, errors="replace") as file:
+                file.seek(offset)
+                return file.read(), file.tell()
+        except Exception:
+            continue
+
+    raise RuntimeError(f"ログファイルを読めません: {path}")
+
+
+def _watchVrchatLogChanges(stop_event, label, on_relevant_change):
+    log("ACTION", f"{label} realtime watcher started")
+
+    current_log = None
+    offset = 0
+
+    while not stop_event.is_set():
+        try:
+            latest_log = findLatestVrchatLog()
+            latest_size = latest_log.stat().st_size
+
+            if current_log is None:
+                current_log = latest_log
+                offset = latest_size
+                log("INFO", f"{label} watching file={current_log}")
+                continue
+
+            if latest_log != current_log:
+                current_log = latest_log
+                offset = 0
+                log("INFO", f"{label} watching new file={current_log}")
+
+            if latest_size < offset:
+                offset = 0
+
+            if latest_size > offset:
+                text, offset = _readNewText(latest_log, offset)
+
+                if RELEVANT_LOG_PATTERN.search(text):
+                    on_relevant_change(text)
+        except Exception as e:
+            log("ERROR", f"{label} realtime watcher failed detail={e}")
+
+        stop_event.wait(REALTIME_IDLE_SECONDS)
+
+    log("INFO", f"{label} realtime watcher stopped")
+
+
+def _monitor_loop():
+    def on_relevant_change(_text):
+        collectVrchatLog(notify_changed=True)
+
+    _watchVrchatLogChanges(
+        _monitor_stop_event,
+        "VRC log monitor",
+        on_relevant_change,
+    )
+
+
+def _self_monitor_loop():
+    def on_relevant_change(text):
+        try:
+            config = loadVrcLogConfig()
+            self_state = extractLatestSelfLogState(
+                text,
+                config.get("self_name", ""),
+            )
+
+            global _last_self_state
+            if self_state and self_state != _last_self_state:
+                if self_state == "joined":
+                    setDiscordMuted(True)
+                elif self_state == "left":
+                    setDiscordMuted(False)
+                _last_self_state = self_state
+        except Exception as e:
+            log("ERROR", f"VRC self monitor failed detail={e}")
+
+    _watchVrchatLogChanges(
+        _self_monitor_stop_event,
+        "VRC self monitor",
+        on_relevant_change,
+    )
+
+
+def startVrcLogMonitor(_interval_seconds=None):
+    global _monitor_thread
+
+    if _monitor_thread and _monitor_thread.is_alive():
+        log("INFO", "VRC log monitor already running")
+        return
+
+    _monitor_stop_event.clear()
+    _monitor_thread = threading.Thread(
+        target=_monitor_loop,
+        daemon=True,
+    )
+    _monitor_thread.start()
+
+
+def startSelfMonitor(_interval_seconds=None):
+    global _self_monitor_thread
+
+    if _self_monitor_thread and _self_monitor_thread.is_alive():
+        log("INFO", "VRC self monitor already running")
+        return
+
+    _self_monitor_stop_event.clear()
+    _self_monitor_thread = threading.Thread(
+        target=_self_monitor_loop,
+        daemon=True,
+    )
+    _self_monitor_thread.start()
+
+
+def stopVrcLogMonitor():
+    _monitor_stop_event.set()
+
+
+def stopSelfMonitor():
+    _self_monitor_stop_event.set()
--- a/VRWT_Tool/VRC_OSC/src/vrc_log/member_name_matcher.py
+++ b/VRWT_Tool/VRC_OSC/src/vrc_log/member_name_matcher.py
@@ -0,0 +1,623 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+目的:
+VRChat表示名とTOML登録名を安全な順番で紐づける
+
+特徴:
+- 完全一致を先に確定して候補から除外
+- 正規化一致を確定して候補から除外
+- 残った候補だけを high confidence fuzzy 判定
+- guest のみ low confidence fuzzy で再選別
+- pending / ambiguous / unmatched 判定
+- 記号除去
+- 全角半角統一
+- 小文字化
+- 日本語 -> ローマ字変換
+- rapidfuzz による類似度
+- テストケース付き
+
+前提:
+pip install rapidfuzz pykakasi
+
+期待結果:
+- 100%一致した名前を fuzzy 候補に残さない
+- 似た名前同士の誤リンクを減らす
+"""
+
+import re
+import sys
+import unicodedata
+from dataclasses import dataclass, field
+from typing import Dict, Iterable, List, Optional, Tuple
+
+try:
+    from rapidfuzz import fuzz
+except Exception as e:
+    if __name__ == "__main__":
+        print(f"[FATAL] rapidfuzz import failed: {e}")
+        input("Press Enter to exit...")
+        sys.exit(1)
+    raise
+
+try:
+    from pykakasi import kakasi
+except Exception as e:
+    if __name__ == "__main__":
+        print(f"[FATAL] pykakasi import failed: {e}")
+        input("Press Enter to exit...")
+        sys.exit(1)
+    raise
+
+
+# =========================
+# 設定
+# =========================
+
+AUTO_LINK_SCORE = 95
+LOW_CONFIDENCE_SCORE = 80
+AMBIGUOUS_DIFF = 10
+LOW_CONFIDENCE_MAX_REMAINING = 3
+WEAK_MATCH_SCORE = 50
+
+STATUS_MATCHED = "matched"
+STATUS_MATCHED_LOW_CONFIDENCE = "matched_low_confidence"
+STATUS_PENDING = "pending"
+STATUS_AMBIGUOUS = "ambiguous"
+STATUS_UNMATCHED = "unmatched"
+STATUS_UNKNOWN_MEMBER = "unknown_member"
+
+ROLE_GUEST = "guest"
+ROLE_SELF = "self"
+ROLE_STAFF = "staff"
+
+TEST_GUESTS = [
+    "okada",
+    "tanaka",
+    "yamada",
+    "messykenty",
+]
+
+TEST_CURRENT_USERS = [
+    "岡田",
+    "ikada",
+    "okada_",
+    "ＯＫＡＤＡ",
+    "tanaka!!!",
+    "田中",
+    "やまだ",
+    "messy_kenty",
+    "messy.kenty",
+    "MESSYKENTY",
+    "山田",
+]
+
+
+@dataclass(frozen=True)
+class TomlMember:
+    name: str
+    role: str = ROLE_GUEST
+
+
+@dataclass
+class MatchResult:
+    toml_name: str
+    role: str
+    status: str
+    vrchat_name: Optional[str] = None
+    score: Optional[float] = None
+    second_score: Optional[float] = None
+    reason: str = ""
+    candidates: List[Tuple[str, float]] = field(default_factory=list)
+
+
+# =========================
+# ローマ字変換
+# =========================
+
+kks = kakasi()
+
+
+def jp_to_romaji(text: str) -> str:
+    try:
+        converted = kks.convert(text)
+
+        result = []
+        for item in converted:
+            result.append(item["hepburn"])
+
+        return "".join(result)
+
+    except Exception as e:
+        print(f"[ERROR] romaji convert failed: {text} : {e}")
+        return text
+
+
+# =========================
+# 正規化
+# =========================
+
+def normalize_name(name: str) -> str:
+    """
+    正規化内容:
+    - 全角半角統一
+    - 小文字化
+    - 日本語→ローマ字
+    - 記号除去
+    """
+
+    # Unicode normalize
+    name = unicodedata.normalize("NFKC", name)
+
+    # 小文字化
+    name = name.lower()
+
+    # 日本語→ローマ字
+    name = jp_to_romaji(name)
+
+    # 記号除去
+    name = re.sub(r"[^a-z0-9]", "", name)
+
+    return name.strip()
+
+
+# =========================
+# 類似候補検索
+# =========================
+
+def find_candidates(
+    target_guest: str,
+    current_users: List[str],
+) -> List[Tuple[str, float]]:
+
+    normalized_target = normalize_name(target_guest)
+
+    normalized_map = {}
+
+    for user in current_users:
+        normalized_map[user] = normalize_name(user)
+
+    results = []
+
+    for original_name, normalized_name in normalized_map.items():
+
+        score = fuzz.ratio(
+            normalized_target,
+            normalized_name,
+        )
+
+        results.append((original_name, score))
+
+    results.sort(key=lambda x: x[1], reverse=True)
+
+    return results
+
+
+def _to_toml_member(member) -> TomlMember:
+    if isinstance(member, TomlMember):
+        return member
+
+    if isinstance(member, str):
+        return TomlMember(name=member)
+
+    if isinstance(member, dict):
+        return TomlMember(
+            name=str(member.get("name", "")),
+            role=str(member.get("role", ROLE_GUEST)),
+        )
+
+    name = getattr(member, "name", "")
+    role = getattr(member, "role", ROLE_GUEST)
+
+    return TomlMember(
+        name=str(name),
+        role=str(role),
+    )
+
+
+def _make_candidates(
+    toml_name: str,
+    current_users: Iterable[str],
+) -> List[Tuple[str, float]]:
+    normalized_toml = normalize_name(toml_name)
+    results = []
+
+    for user in current_users:
+        score = fuzz.ratio(
+            normalized_toml,
+            normalize_name(user),
+        )
+        results.append((user, score))
+
+    results.sort(key=lambda x: x[1], reverse=True)
+
+    return results
+
+
+def _classify_remaining(
+    member: TomlMember,
+    current_users: Iterable[str],
+) -> MatchResult:
+    candidates = _make_candidates(
+        member.name,
+        current_users,
+    )
+
+    if not candidates:
+        return MatchResult(
+            toml_name=member.name,
+            role=member.role,
+            status=STATUS_UNMATCHED,
+            reason="no_candidate",
+        )
+
+    top_name, top_score = candidates[0]
+    second_score = candidates[1][1] if len(candidates) >= 2 else 0
+    diff = top_score - second_score
+
+    if top_score < WEAK_MATCH_SCORE:
+        status = STATUS_UNMATCHED
+        reason = "weak_candidate"
+    elif diff < AMBIGUOUS_DIFF:
+        status = STATUS_AMBIGUOUS
+        reason = "close_candidates"
+    else:
+        status = STATUS_PENDING
+        reason = "below_auto_link_threshold"
+
+    return MatchResult(
+        toml_name=member.name,
+        role=member.role,
+        status=status,
+        vrchat_name=top_name,
+        score=top_score,
+        second_score=second_score,
+        reason=reason,
+        candidates=candidates,
+    )
+
+
+def _best_fuzzy_match(
+    member: TomlMember,
+    current_users: Iterable[str],
+    min_score: float,
+) -> Optional[MatchResult]:
+    candidates = _make_candidates(
+        member.name,
+        current_users,
+    )
+
+    if not candidates:
+        return None
+
+    top_name, top_score = candidates[0]
+    second_score = candidates[1][1] if len(candidates) >= 2 else 0
+
+    if (
+        top_score >= min_score
+        and top_score - second_score >= AMBIGUOUS_DIFF
+    ):
+        return MatchResult(
+            toml_name=member.name,
+            role=member.role,
+            status=STATUS_MATCHED,
+            vrchat_name=top_name,
+            score=top_score,
+            second_score=second_score,
+            reason="fuzzy",
+            candidates=candidates,
+        )
+
+    return None
+
+
+def _apply_fuzzy_round(
+    remaining_members: Dict[str, TomlMember],
+    remaining_users: set,
+    min_score: float,
+    status: str,
+    reason: str,
+    eligible_roles: Optional[set] = None,
+) -> List[MatchResult]:
+    results = []
+
+    while True:
+        possible_matches = []
+
+        for key, member in remaining_members.items():
+            if (
+                eligible_roles is not None
+                and member.role not in eligible_roles
+            ):
+                continue
+
+            match = _best_fuzzy_match(
+                member,
+                remaining_users,
+                min_score,
+            )
+
+            if match is None:
+                continue
+
+            possible_matches.append((key, match))
+
+        if not possible_matches:
+            break
+
+        possible_matches.sort(
+            key=lambda x: (
+                x[1].score if x[1].score is not None else 0,
+                (x[1].score or 0) - (x[1].second_score or 0),
+            ),
+            reverse=True,
+        )
+
+        key, match = possible_matches[0]
+        match.status = status
+        match.reason = reason
+
+        results.append(match)
+        remaining_members.pop(key)
+        remaining_users.remove(match.vrchat_name)
+
+    return results
+
+
+def match_username_sets(
+    toml_members,
+    current_users: List[str],
+) -> Tuple[List[MatchResult], List[str]]:
+    """
+    TOML登録名とVRChat現在ユーザーを段階的に1対1照合する。
+
+    戻り値:
+    - TOML側の照合結果
+    - TOMLに紐づかなかったVRChat名
+    """
+
+    members = [_to_toml_member(member) for member in toml_members]
+    remaining_members = {
+        f"{idx}:{member.name}": member
+        for idx, member in enumerate(members)
+    }
+    remaining_users = set(current_users)
+    results = []
+
+    # 1. 完全一致: fuzzy判定せず即確定して候補から除外
+    for key, member in list(remaining_members.items()):
+        if member.name in remaining_users:
+            results.append(
+                MatchResult(
+                    toml_name=member.name,
+                    role=member.role,
+                    status=STATUS_MATCHED,
+                    vrchat_name=member.name,
+                    score=100,
+                    second_score=None,
+                    reason="exact",
+                )
+            )
+            remaining_members.pop(key)
+            remaining_users.remove(member.name)
+
+    # 2. 正規化一致: 一意に対応できるものだけを確定して除外
+    normalized_members: Dict[str, List[str]] = {}
+    normalized_users: Dict[str, List[str]] = {}
+
+    for key, member in remaining_members.items():
+        normalized_members.setdefault(
+            normalize_name(member.name),
+            [],
+        ).append(key)
+
+    for user in remaining_users:
+        normalized_users.setdefault(
+            normalize_name(user),
+            [],
+        ).append(user)
+
+    for normalized_name, member_keys in normalized_members.items():
+        users = normalized_users.get(normalized_name, [])
+
+        if len(member_keys) != 1 or len(users) != 1:
+            continue
+
+        key = member_keys[0]
+        user = users[0]
+        member = remaining_members[key]
+
+        results.append(
+            MatchResult(
+                toml_name=member.name,
+                role=member.role,
+                status=STATUS_MATCHED,
+                vrchat_name=user,
+                score=100,
+                second_score=None,
+                reason="normalized",
+            )
+        )
+        remaining_members.pop(key)
+        remaining_users.remove(user)
+
+    # 3. 高信頼fuzzy: 残った候補だけで、確定ごとに候補集合を縮める
+    results.extend(
+        _apply_fuzzy_round(
+            remaining_members,
+            remaining_users,
+            AUTO_LINK_SCORE,
+            STATUS_MATCHED,
+            "high_confidence_fuzzy",
+        )
+    )
+
+    # 4. 低信頼guest再選別: guestのみ、候補集合が少ない場合だけ
+    if len(remaining_members) <= LOW_CONFIDENCE_MAX_REMAINING:
+        results.extend(
+            _apply_fuzzy_round(
+                remaining_members,
+                remaining_users,
+                LOW_CONFIDENCE_SCORE,
+                STATUS_MATCHED_LOW_CONFIDENCE,
+                "guest_low_confidence_fuzzy",
+                eligible_roles={ROLE_GUEST},
+            )
+        )
+
+    # 5. 残りは無理に確定しない
+    for member in remaining_members.values():
+        results.append(
+            _classify_remaining(
+                member,
+                remaining_users,
+            )
+        )
+
+    unknown_users = sorted(remaining_users)
+
+    return results, unknown_users
+
+
+# =========================
+# 判定
+# =========================
+
+def evaluate_guest_match(
+    guest_name: str,
+    current_users: List[str],
+):
+
+    print("")
+    print("=" * 60)
+    print(f"[CHECK] guest={guest_name}")
+
+    normalized_guest = normalize_name(guest_name)
+
+    print(f"[INFO] normalized_guest={normalized_guest}")
+
+    candidates = find_candidates(
+        guest_name,
+        current_users,
+    )
+
+    if not candidates:
+        print("[ERROR] no candidates")
+        return
+
+    print("")
+    print("[CHECK] candidate list")
+
+    for idx, (name, score) in enumerate(candidates[:5], start=1):
+        print(f"  {idx}. {name:<20} score={score:.2f}")
+
+    top_name, top_score = candidates[0]
+
+    second_score = 0
+
+    if len(candidates) >= 2:
+        second_score = candidates[1][1]
+
+    diff = top_score - second_score
+
+    print("")
+    print(f"[INFO] top_score={top_score:.2f}")
+    print(f"[INFO] second_score={second_score:.2f}")
+    print(f"[INFO] diff={diff:.2f}")
+
+    # 自動確定
+    if (
+        top_score >= AUTO_LINK_SCORE
+        and diff >= AMBIGUOUS_DIFF
+    ):
+        print("")
+        print("[INFO] AUTO LINK SAFE")
+        print(f"[INFO] linked => {top_name}")
+        return
+
+    # 曖昧
+    print("")
+    print("[WARN] ambiguous match")
+    print("[WARN] auto link disabled")
+
+    print("")
+    print("[ACTION] manual review required")
+
+
+# =========================
+# main
+# =========================
+
+def main():
+
+    print("[CHECK] normalize preview")
+
+    for user in TEST_CURRENT_USERS:
+        print(
+            f"{user:<20}"
+            f" => "
+            f"{normalize_name(user)}"
+        )
+
+    print("")
+    print("[CHECK] username sync ordered matching test")
+
+    results, unknown_users = match_username_sets(
+        TEST_GUESTS,
+        TEST_CURRENT_USERS,
+    )
+
+    for result in results:
+        if result.vrchat_name is None:
+            print(
+                f"{result.toml_name:<20}"
+                f" => "
+                f"{result.status:<22}"
+                f" reason={result.reason}"
+            )
+            continue
+
+        score_text = ""
+        if result.score is not None:
+            score_text = f" score={result.score:.2f}"
+
+        second_text = ""
+        if result.second_score is not None:
+            second_text = f" second={result.second_score:.2f}"
+
+        print(
+            f"{result.toml_name:<20}"
+            f" => "
+            f"{result.vrchat_name:<20}"
+            f" {result.status:<22}"
+            f" reason={result.reason}"
+            f"{score_text}"
+            f"{second_text}"
+        )
+
+    for user in unknown_users:
+        print(
+            f"{user:<20}"
+            f" => "
+            f"{STATUS_UNKNOWN_MEMBER}"
+        )
+
+    print("")
+    print("[INFO] completed")
+
+
+if __name__ == "__main__":
+
+    print("[CHECK] start")
+
+    answer = input(
+        "[ACTION] run fuzzy test? (yes/no): "
+    ).strip().lower()
+
+    if answer != "yes":
+        print("[FATAL] cancelled")
+        input("Press Enter to exit...")
+        sys.exit(1)
+
+    main()
--- a/cmd/vrc_osc/main.go
+++ b/cmd/vrc_osc/main.go
@@ -4,18 +4,39 @@ import (
 	"flag"
 	"log"
 	"os"
+	"os/exec"
+	"path/filepath"

 	"vrc_osc_go/internal/app"
 )

 func main() {
 	var configPath string
+	var mode string
+	var noGUI bool
 	flag.StringVar(&configPath, "config", "config/config.toml", "path to config.toml")
+	flag.StringVar(&mode, "mode", "", "generate-json or extract-log")
+	flag.BoolVar(&noGUI, "no-gui", false, "do not launch the GUI companion")
 	flag.Parse()

-	if err := app.Run(configPath); err != nil {
+	if mode == "" && !noGUI {
+		launchGUI()
+	}
+
+	if err := app.Run(configPath, mode); err != nil {
 		log.SetOutput(os.Stderr)
 		log.Fatalf("vrc_osc_go: %v", err)
 	}
 }

+func launchGUI() {
+	exe, err := os.Executable()
+	if err != nil {
+		return
+	}
+	gui := filepath.Join(filepath.Dir(exe), "vrc_osc_gui.exe")
+	if _, err := os.Stat(gui); err != nil {
+		return
+	}
+	_ = exec.Command(gui).Start()
+}
--- a/cmd/vrc_osc_gui/main.go
+++ b/cmd/vrc_osc_gui/main.go
@@ -0,0 +1,14 @@
+//go:build windows
+
+package main
+
+import (
+	"log"
+
+	"vrc_osc_go/internal/app"
+)
+
+func main() {
+	_ = app.AppendRuntimeLog("GUI", "starting vrc_osc_gui.exe")
+	log.Fatal(runNativeGUI())
+}
--- a/cmd/vrc_osc_gui/tray_windows.go
+++ b/cmd/vrc_osc_gui/tray_windows.go
@@ -0,0 +1,216 @@
+//go:build windows
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+	"syscall"
+	"unsafe"
+)
+
+const (
+	wmUser      = 0x0400
+	wmTray      = wmUser + 1
+	wmCommand   = 0x0111
+	wmDestroy    = 0x0002
+	wmClose      = 0x0010
+	wmRButtonUp  = 0x0205
+	wmLButtonUp  = 0x0202
+	wmCreate     = 0x0001
+	wmQuit       = 0x0012
+	niAdd        = 0x00000000
+	niModify     = 0x00000001
+	niDelete     = 0x00000002
+	nifMessage   = 0x00000001
+	nifIcon      = 0x00000002
+	nifTip       = 0x00000004
+	nifInfo      = 0x00000010
+	nimPopup     = 0x00000000
+	miString     = 0x00000000
+	miSeparator  = 0x00000800
+	miDefault    = 0x00001000
+	swHide       = 0
+	idOpen       = 1001
+	idExit       = 1002
+	maxTip       = 128
+	maxClassName  = 64
+)
+
+type trayApp struct {
+	uiURL string
+	open  func()
+}
+
+func newTray(uiURL string, open func()) *trayApp {
+	return &trayApp{uiURL: uiURL, open: open}
+}
+
+func (t *trayApp) Run() error {
+	return runTray(t.uiURL, t.open)
+}
+
+func openBrowser(url string) {
+	_ = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
+}
+
+func runTray(uiURL string, open func()) error {
+	user32 := syscall.NewLazyDLL("user32.dll")
+	shell32 := syscall.NewLazyDLL("shell32.dll")
+	kernel32 := syscall.NewLazyDLL("kernel32.dll")
+
+	registerClass := user32.NewProc("RegisterClassW")
+	createWindowEx := user32.NewProc("CreateWindowExW")
+	defWindowProc := user32.NewProc("DefWindowProcW")
+	getMessage := user32.NewProc("GetMessageW")
+	translateMessage := user32.NewProc("TranslateMessage")
+	dispatchMessage := user32.NewProc("DispatchMessageW")
+	postQuitMessage := user32.NewProc("PostQuitMessage")
+	createPopupMenu := user32.NewProc("CreatePopupMenu")
+	appendMenu := user32.NewProc("AppendMenuW")
+	setForegroundWindow := user32.NewProc("SetForegroundWindow")
+	trackPopupMenu := user32.NewProc("TrackPopupMenu")
+	showWindow := user32.NewProc("ShowWindow")
+	loadIcon := user32.NewProc("LoadIconW")
+	shellNotifyIcon := shell32.NewProc("Shell_NotifyIconW")
+	getModuleHandle := kernel32.NewProc("GetModuleHandleW")
+
+	type wndClassEx struct {
+		cbSize        uint32
+		style         uint32
+		lpfnWndProc   uintptr
+		cbClsExtra    int32
+		cbWndExtra    int32
+		hInstance     uintptr
+		hIcon         uintptr
+		hCursor       uintptr
+		hbrBackground uintptr
+		lpszMenuName  *uint16
+		lpszClassName *uint16
+		hIconSm       uintptr
+	}
+	type point struct{ X, Y int32 }
+	type msg struct {
+		hwnd    uintptr
+		message uint32
+		wParam  uintptr
+		lParam  uintptr
+		time    uint32
+		pt      point
+	}
+	type notifyIconData struct {
+		cbSize           uint32
+		hWnd             uintptr
+		uID              uint32
+		uFlags           uint32
+		uCallbackMessage uint32
+		hIcon            uintptr
+		szTip            [maxTip]uint16
+		dwState          uint32
+		dwStateMask      uint32
+		szInfo           [256]uint16
+		uTimeoutVersion  uint32
+		szInfoTitle      [64]uint16
+		dwInfoFlags      uint32
+		guidItem         [16]byte
+		hBalloonIcon     uintptr
+	}
+
+	className, _ := syscall.UTF16PtrFromString("VRC_OSC_TRAY")
+	windowTitle, _ := syscall.UTF16PtrFromString("VRC OSC Tray")
+	icon, _, _ := loadIcon.Call(0, 32512) // IDI_APPLICATION
+
+	var hwnd uintptr
+	var menu uintptr
+	var nid notifyIconData
+
+	wndProc := syscall.NewCallback(func(hwnd uintptr, msg uint32, wParam, lParam uintptr) uintptr {
+		switch msg {
+		case wmCreate:
+			return 0
+		case wmTray:
+			switch lParam {
+			case wmLButtonUp:
+				if open != nil {
+					open()
+				}
+			case wmRButtonUp:
+				if menu == 0 {
+					m, _, _ := createPopupMenu.Call()
+					menu = m
+					openText, _ := syscall.UTF16PtrFromString("Open UI")
+					exitText, _ := syscall.UTF16PtrFromString("Exit")
+					appendMenu.Call(menu, miString|miDefault, idOpen, uintptr(unsafe.Pointer(openText)))
+					appendMenu.Call(menu, miString, idExit, uintptr(unsafe.Pointer(exitText)))
+				}
+				setForegroundWindow.Call(hwnd)
+				var p point
+				user32.NewProc("GetCursorPos").Call(uintptr(unsafe.Pointer(&p)))
+				trackPopupMenu.Call(menu, nimPopup, uintptr(p.X), uintptr(p.Y), 0, hwnd, 0)
+			}
+			return 0
+		case wmCommand:
+			switch uint16(wParam & 0xffff) {
+			case idOpen:
+				if open != nil {
+					open()
+				}
+			case idExit:
+				user32.NewProc("DestroyWindow").Call(hwnd)
+			}
+			return 0
+		case wmDestroy:
+			nid.cbSize = uint32(unsafe.Sizeof(nid))
+			nid.hWnd = hwnd
+			nid.uID = 1
+			shellNotifyIcon.Call(niDelete, uintptr(unsafe.Pointer(&nid)))
+			postQuitMessage.Call(0)
+			return 0
+		}
+		ret, _, _ := defWindowProc.Call(hwnd, uintptr(msg), wParam, lParam)
+		return ret
+	})
+
+	hInstance, _, _ := getModuleHandle.Call(0)
+	_, _, regErr := registerClass.Call(uintptr(unsafe.Pointer(&wndClassEx{
+		cbSize:        uint32(unsafe.Sizeof(wndClassEx{})),
+		lpfnWndProc:   wndProc,
+		hInstance:     hInstance,
+		hIcon:         icon,
+		lpszClassName: className,
+	})))
+	if regErr != nil {
+		return fmt.Errorf("RegisterClassW failed: %v", regErr)
+	}
+
+	hwnd, _, err := createWindowEx.Call(0, uintptr(unsafe.Pointer(className)), uintptr(unsafe.Pointer(windowTitle)), 0, 0, 0, 0, 0, 0, 0, hInstance, 0)
+	if hwnd == 0 {
+		return fmt.Errorf("CreateWindowExW failed: %v", err)
+	}
+	showWindow.Call(hwnd, swHide)
+
+	nid.cbSize = uint32(unsafe.Sizeof(nid))
+	nid.hWnd = hwnd
+	nid.uID = 1
+	nid.uFlags = nifMessage | nifIcon | nifTip
+	nid.uCallbackMessage = wmTray
+	nid.hIcon = icon
+	tip := syscall.StringToUTF16("VRC OSC")
+	copy(nid.szTip[:], tip)
+	if ok, _, _ := shellNotifyIcon.Call(niAdd, uintptr(unsafe.Pointer(&nid))); ok == 0 {
+		return fmt.Errorf("Shell_NotifyIconW add failed")
+	}
+	log.Printf("tray started")
+
+	var m msg
+	for {
+		r, _, _ := getMessage.Call(uintptr(unsafe.Pointer(&m)), 0, 0, 0)
+		if int32(r) <= 0 {
+			break
+		}
+		translateMessage.Call(uintptr(unsafe.Pointer(&m)))
+		dispatchMessage.Call(uintptr(unsafe.Pointer(&m)))
+	}
+	return nil
+}
--- a/cmd/vrc_osc_gui/window_windows.go
+++ b/cmd/vrc_osc_gui/window_windows.go
@@ -0,0 +1,531 @@
+//go:build windows
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"vrc_osc_go/internal/app"
+)
+
+const (
+	wsOverlappedWindow = 0x00CF0000
+	wsVisible          = 0x10000000
+	wsChild            = 0x40000000
+	wsBorder           = 0x00800000
+	esMultiline        = 0x0004
+	esReadonly         = 0x0800
+	esAutovscroll      = 0x0040
+	esAutohscroll      = 0x0080
+	wmCreateGUI        = 0x0001
+	wmDestroyGUI       = 0x0002
+	wmTimerGUI         = 0x0113
+	wmCommandGUI       = 0x0111
+	idStatus           = 2001
+	idLog              = 2002
+	timerRefresh       = 1
+)
+
+var joinLeaveLinePattern = regexp.MustCompile(`^\[(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\]\s+\[(join|leave)\]\s+(.+?)\s+\((\d+)\)$`)
+var runtimeTimePattern = regexp.MustCompile(`^\[(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\]`)
+
+type guiApp struct {
+	hwnd      uintptr
+	leftHwnd  uintptr
+	rightHwnd uintptr
+	tabJoin   uintptr
+	tabDiscord uintptr
+	tabTranslate uintptr
+	activeTab string
+	lastInstanceCount int
+}
+
+type userState struct {
+	Name     string
+	Present  bool
+	LastJoin time.Time
+	LastLeave time.Time
+}
+
+func runtimeDir() string {
+	exe, err := os.Executable()
+	if err != nil {
+		return "runtime"
+	}
+	return filepath.Join(filepath.Dir(exe), "runtime")
+}
+
+func guiLog(text string) {
+	_ = app.AppendRuntimeLog("GUI", text)
+}
+
+func runNativeGUI() error {
+	user32 := syscall.NewLazyDLL("user32.dll")
+	kernel32 := syscall.NewLazyDLL("kernel32.dll")
+	registerClass := user32.NewProc("RegisterClassW")
+	createWindowEx := user32.NewProc("CreateWindowExW")
+	defWindowProc := user32.NewProc("DefWindowProcW")
+	showWindow := user32.NewProc("ShowWindow")
+	updateWindow := user32.NewProc("UpdateWindow")
+	getMessage := user32.NewProc("GetMessageW")
+	translateMessage := user32.NewProc("TranslateMessage")
+	dispatchMessage := user32.NewProc("DispatchMessageW")
+	postQuitMessage := user32.NewProc("PostQuitMessage")
+	setTimer := user32.NewProc("SetTimer")
+	loadCursor := user32.NewProc("LoadCursorW")
+	setWindowText := user32.NewProc("SetWindowTextW")
+	getModuleHandle := kernel32.NewProc("GetModuleHandleW")
+	loadIcon := user32.NewProc("LoadIconW")
+
+	type wndClass struct {
+		style         uint32
+		lpfnWndProc   uintptr
+		cbClsExtra    int32
+		cbWndExtra    int32
+		hInstance     uintptr
+		hIcon         uintptr
+		hCursor       uintptr
+		hbrBackground uintptr
+		lpszMenuName  *uint16
+		lpszClassName *uint16
+	}
+	type msg struct {
+		hwnd    uintptr
+		message uint32
+		wParam  uintptr
+		lParam  uintptr
+		time    uint32
+		pt      struct{ X, Y int32 }
+	}
+
+	hInstance, _, _ := getModuleHandle.Call(0)
+	className, _ := syscall.UTF16PtrFromString("VRC_OSC_NATIVE_GUI")
+	title, _ := syscall.UTF16PtrFromString("VRC OSC")
+	cursor, _, _ := loadCursor.Call(0, 32512)
+	icon, _, _ := loadIcon.Call(0, 32512)
+	guiLog("stage=prepare window")
+
+	var app guiApp
+	wndProc := syscall.NewCallback(func(hwnd uintptr, message uint32, wParam, lParam uintptr) uintptr {
+		switch message {
+		case wmCreateGUI:
+			buttonClass, _ := syscall.UTF16PtrFromString("BUTTON")
+			leftClass, _ := syscall.UTF16PtrFromString("EDIT")
+			rightClass, _ := syscall.UTF16PtrFromString("EDIT")
+			leftTitle, _ := syscall.UTF16PtrFromString("")
+			rightTitle, _ := syscall.UTF16PtrFromString("")
+			joinTitle, _ := syscall.UTF16PtrFromString("Join Log")
+			discordTitle, _ := syscall.UTF16PtrFromString("Discord")
+			translateTitle, _ := syscall.UTF16PtrFromString("Translate")
+			app.tabJoin, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(joinTitle)), wsVisible|wsChild, 370, 20, 90, 28, hwnd, 3001, hInstance, 0)
+			app.tabDiscord, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(discordTitle)), wsVisible|wsChild, 470, 20, 90, 28, hwnd, 3002, hInstance, 0)
+			app.tabTranslate, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(translateTitle)), wsVisible|wsChild, 570, 20, 90, 28, hwnd, 3003, hInstance, 0)
+			app.leftHwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(leftClass)), uintptr(unsafe.Pointer(leftTitle)), wsVisible|wsChild|wsBorder|esMultiline|esReadonly|esAutovscroll|esAutohscroll, 20, 20, 330, 300, hwnd, idStatus, hInstance, 0)
+			app.rightHwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(rightClass)), uintptr(unsafe.Pointer(rightTitle)), wsVisible|wsChild|wsBorder|esMultiline|esReadonly|esAutovscroll|esAutohscroll, 370, 60, 330, 260, hwnd, idLog, hInstance, 0)
+			app.activeTab = "join"
+			setTimer.Call(hwnd, timerRefresh, 2000, 0)
+			refreshGUI(setWindowText, &app)
+			return 0
+		case wmCommandGUI:
+			switch uint16(wParam & 0xffff) {
+			case 3001:
+				app.activeTab = "join"
+			case 3002:
+				app.activeTab = "discord"
+			case 3003:
+				app.activeTab = "translate"
+			}
+			refreshGUI(setWindowText, &app)
+			return 0
+		case wmTimerGUI:
+			refreshGUI(setWindowText, &app)
+			return 0
+		case wmDestroyGUI:
+			postQuitMessage.Call(0)
+			return 0
+		}
+		ret, _, _ := defWindowProc.Call(hwnd, uintptr(message), wParam, lParam)
+		return ret
+	})
+
+	guiLog("stage=register class")
+	atom, _, regErr := registerClass.Call(uintptr(unsafe.Pointer(&wndClass{
+		style:         0,
+		lpfnWndProc:   wndProc,
+		hInstance:     hInstance,
+		hIcon:         icon,
+		hCursor:       cursor,
+		hbrBackground: 6,
+		lpszClassName: className,
+	})))
+	if atom == 0 {
+		guiLog(fmt.Sprintf("stage=register class failed err=%v", regErr))
+		return fmt.Errorf("register class: %v", regErr)
+	}
+
+	guiLog("stage=create window")
+	app.hwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(className)), uintptr(unsafe.Pointer(title)), wsOverlappedWindow, 200, 120, 760, 380, 0, 0, hInstance, 0)
+	if app.hwnd == 0 {
+		guiLog("stage=create window failed")
+		return fmt.Errorf("create window failed")
+	}
+
+	guiLog("stage=show window")
+	showWindow.Call(app.hwnd, 5)
+	updateWindow.Call(app.hwnd)
+	guiLog("stage=message loop")
+
+	var m msg
+	for {
+		r, _, _ := getMessage.Call(uintptr(unsafe.Pointer(&m)), 0, 0, 0)
+		if int32(r) <= 0 {
+			break
+		}
+		translateMessage.Call(uintptr(unsafe.Pointer(&m)))
+		dispatchMessage.Call(uintptr(unsafe.Pointer(&m)))
+	}
+	return nil
+}
+
+func refreshGUI(setWindowText *syscall.LazyProc, app *guiApp) {
+	current, instanceCount := currentUsersFromJoinLeave()
+	if instanceCount == 0 && app.lastInstanceCount > 0 {
+		instanceCount = app.lastInstanceCount
+	}
+	if instanceCount > 0 {
+		app.lastInstanceCount = instanceCount
+	}
+	if app.leftHwnd != 0 {
+		t, _ := syscall.UTF16PtrFromString(formatGuestPane("Join Log", current))
+		setWindowText.Call(app.leftHwnd, uintptr(unsafe.Pointer(t)))
+	}
+	if app.rightHwnd != 0 {
+		t, _ := syscall.UTF16PtrFromString(formatRightPane(app.activeTab, readRuntimeSnapshot(), currentWorldLabel(), instanceCount))
+		setWindowText.Call(app.rightHwnd, uintptr(unsafe.Pointer(t)))
+	}
+}
+
+func currentUsersFromJoinLeave() ([]userState, int) {
+	since := currentWorldStartTime()
+	users := map[string]*userState{}
+	lastLoggedCount := 0
+	for _, s := range readGuestSnapshot() {
+		if !s.Present {
+			continue
+		}
+		cp := s
+		users[s.Name] = &userState{
+			Name:     s.Name,
+			Present:  true,
+			LastJoin: cp.LastJoin,
+		}
+	}
+
+	p := filepath.Join(runtimeDir(), "join_leave.log")
+	b, err := os.ReadFile(p)
+	if err != nil {
+		out := make([]userState, 0, len(users))
+		for _, u := range users {
+			out = append(out, *u)
+		}
+		sort.Slice(out, func(i, j int) bool {
+			if out[i].Present != out[j].Present {
+				return out[i].Present
+			}
+			return strings.ToLower(out[i].Name) < strings.ToLower(out[j].Name)
+		})
+		return out, countPresent(out)
+	}
+
+	for _, raw := range strings.Split(string(b), "\n") {
+		line := strings.TrimSpace(raw)
+		if line == "" {
+			continue
+		}
+		if c := parseJoinLeaveCount(line); c > 0 {
+			lastLoggedCount = c
+		}
+		at, kind, name := parseJoinLeaveLine(line)
+		if name == "" {
+			continue
+		}
+		if !since.IsZero() && at.Before(since) {
+			continue
+		}
+		u := users[name]
+		if u == nil {
+			u = &userState{Name: name}
+			users[name] = u
+		}
+		switch kind {
+		case "join":
+			u.Present = true
+			if at.After(u.LastJoin) {
+				u.LastJoin = at
+			}
+		case "leave":
+			u.Present = false
+			if at.After(u.LastLeave) {
+				u.LastLeave = at
+			}
+		}
+	}
+
+	// Keep any snapshot-marked present users that the join/leave delta can't rebuild.
+	for _, snap := range readGuestSnapshot() {
+		if !snap.Present {
+			continue
+		}
+		u := users[snap.Name]
+		if u == nil {
+			users[snap.Name] = &userState{
+				Name:     snap.Name,
+				Present:  true,
+				LastJoin: snap.LastJoin,
+			}
+			continue
+		}
+		if !u.Present {
+			u.Present = true
+			if u.LastJoin.IsZero() {
+				u.LastJoin = snap.LastJoin
+			}
+		}
+	}
+
+	out := make([]userState, 0, len(users))
+	for _, u := range users {
+		out = append(out, *u)
+	}
+	sort.Slice(out, func(i, j int) bool {
+		if out[i].Present != out[j].Present {
+			return out[i].Present
+		}
+		return strings.ToLower(out[i].Name) < strings.ToLower(out[j].Name)
+	})
+	present := countPresent(out)
+	if lastLoggedCount > present {
+		present = lastLoggedCount
+	}
+	return out, present
+}
+
+func readGuestSnapshot() []app.GuestStatus {
+	p := filepath.Join(runtimeDir(), "guest_snapshot.json")
+	b, err := os.ReadFile(p)
+	if err != nil {
+		return nil
+	}
+	var out []app.GuestStatus
+	if err := json.Unmarshal(b, &out); err != nil {
+		return nil
+	}
+	return out
+}
+
+func formatGuestPane(title string, items []userState) string {
+	var b strings.Builder
+	b.WriteString(title)
+	b.WriteString("\r\n")
+	b.WriteString(strings.Repeat("=", len(title)))
+	b.WriteString("\r\n")
+	if len(items) == 0 {
+		b.WriteString("Current in room: 0")
+		b.WriteString("\r\n")
+		b.WriteString("(none)")
+		return b.String()
+	}
+	b.WriteString("Current in room: ")
+	b.WriteString(strconv.Itoa(countPresent(items)))
+	b.WriteString("\r\n\r\n")
+	for _, item := range items {
+		b.WriteString("・ ")
+		b.WriteString(item.Name)
+		if item.Present {
+			b.WriteString(" [present]")
+		} else {
+			b.WriteString(" [gray]")
+			if !item.LastLeave.IsZero() {
+				b.WriteString(" ")
+				b.WriteString(timeAgo(item.LastLeave))
+			}
+		}
+		b.WriteString("\r\n")
+	}
+	return strings.TrimRight(b.String(), "\r\n")
+}
+
+func formatRightPane(tab string, state map[string]any, worldLabel string, currentUsers int) string {
+	var b strings.Builder
+	switch tab {
+	case "discord":
+		b.WriteString("Discord")
+	case "translate":
+		b.WriteString("Translate")
+	default:
+		b.WriteString("Current World")
+	}
+	b.WriteString("\r\n")
+	titleLine := "Current World"
+	switch tab {
+	case "discord":
+		titleLine = "Discord"
+	case "translate":
+		titleLine = "Translate"
+	}
+	b.WriteString(strings.Repeat("=", len(titleLine)))
+	b.WriteString("\r\n")
+	discordMuted, _ := state["discord_muted"].(bool)
+	ocr, _ := state["ocr"].(string)
+	translate, _ := state["translate"].(string)
+	switch tab {
+	case "discord":
+		b.WriteString("Muted: ")
+		b.WriteString(fmt.Sprintf("%v", discordMuted))
+		b.WriteString("\r\nWorld: ")
+		b.WriteString(worldLabel)
+		b.WriteString("\r\nUsers: ")
+		b.WriteString(fmt.Sprintf("%d", currentUsers))
+	case "translate":
+		b.WriteString("Translate: ")
+		b.WriteString(translate)
+		b.WriteString("\r\nOCR: ")
+		b.WriteString(ocr)
+		b.WriteString("\r\nWorld: ")
+		b.WriteString(worldLabel)
+	default:
+		b.WriteString("World: ")
+		b.WriteString(worldLabel)
+		b.WriteString("\r\nUsers: ")
+		b.WriteString(fmt.Sprintf("%d", currentUsers))
+		b.WriteString("\r\nDiscord muted: ")
+		b.WriteString(fmt.Sprintf("%v", discordMuted))
+		b.WriteString("\r\nOCR: ")
+		b.WriteString(ocr)
+		b.WriteString("\r\nTranslate: ")
+		b.WriteString(translate)
+	}
+	return b.String()
+}
+
+func currentWorldLabel() string {
+	p := filepath.Join(runtimeDir(), "runtime.log")
+	b, err := os.ReadFile(p)
+	if err != nil {
+		return ""
+	}
+	lines := strings.Split(string(b), "\n")
+	var latest string
+	for i := 0; i < len(lines); i++ {
+		if !strings.Contains(lines[i], "VRC WORLD") {
+			continue
+		}
+		if i+1 < len(lines) {
+			latest = strings.TrimSpace(lines[i+1])
+		}
+	}
+	return latest
+}
+
+func readRuntimeSnapshot() map[string]any {
+	p := filepath.Join(runtimeDir(), "state.json")
+	b, err := os.ReadFile(p)
+	if err != nil {
+		return map[string]any{}
+	}
+	var out map[string]any
+	_ = json.Unmarshal(b, &out)
+	return out
+}
+
+func currentWorldStartTime() time.Time {
+	p := filepath.Join(runtimeDir(), "runtime.log")
+	b, err := os.ReadFile(p)
+	if err != nil {
+		return time.Time{}
+	}
+	var latest time.Time
+	for _, raw := range strings.Split(string(b), "\n") {
+		line := strings.TrimSpace(raw)
+		if line == "" || !strings.Contains(line, "VRC WORLD") {
+			continue
+		}
+		if at, ok := parseRuntimeTime(line); ok && at.After(latest) {
+			latest = at
+		}
+	}
+	return latest
+}
+
+func parseJoinLeaveLine(line string) (time.Time, string, string) {
+	m := joinLeaveLinePattern.FindStringSubmatch(line)
+	if len(m) != 4 {
+		return time.Time{}, "", ""
+	}
+	at, err := time.Parse("2006-01-02 15:04:05", m[1])
+	if err != nil {
+		return time.Time{}, "", ""
+	}
+	return at, m[2], strings.TrimSpace(m[3])
+}
+
+func parseJoinLeaveCount(line string) int {
+	m := regexp.MustCompile(`\((\d+)\)$`).FindStringSubmatch(line)
+	if len(m) != 2 {
+		return 0
+	}
+	n, err := strconv.Atoi(m[1])
+	if err != nil {
+		return 0
+	}
+	return n
+}
+
+func parseRuntimeTime(line string) (time.Time, bool) {
+	m := runtimeTimePattern.FindStringSubmatch(line)
+	if len(m) != 2 {
+		return time.Time{}, false
+	}
+	at, err := time.Parse("2006-01-02 15:04:05", m[1])
+	if err != nil {
+		return time.Time{}, false
+	}
+	return at, true
+}
+
+func countPresent(items []userState) int {
+	n := 0
+	for _, item := range items {
+		if item.Present {
+			n++
+		}
+	}
+	return n
+}
+
+func timeAgo(at time.Time) string {
+	if at.IsZero() {
+		return ""
+	}
+	d := time.Since(at)
+	if d < time.Minute {
+		return "0分前"
+	}
+	if d < time.Hour {
+		return fmt.Sprintf("%d分前", int(d.Minutes()))
+	}
+	if d < 24*time.Hour {
+		return fmt.Sprintf("%d時間前", int(d.Hours()))
+	}
+	return fmt.Sprintf("%d日前", int(d.Hours()/24))
+}
--- a/cmd/vrc_osc_launcher/main.go
+++ b/cmd/vrc_osc_launcher/main.go
@@ -0,0 +1,75 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"syscall"
+	"unsafe"
+
+	"vrc_osc_go/internal/buildinfo"
+	"vrc_osc_go/internal/common"
+	"vrc_osc_go/internal/update"
+)
+
+func main() {
+	var baseURL string
+	var ownerRepo string
+	var assetName string
+	flag.StringVar(&baseURL, "base-url", "https://git.vrcworldtour.com", "Gitea base URL")
+	flag.StringVar(&ownerRepo, "repo", "every_holiday/VRCWT-OSC", "owner/repo")
+	flag.StringVar(&assetName, "asset", "vrc_osc-windows.zip", "release asset name")
+	flag.Parse()
+
+	client := &update.Client{BaseURL: baseURL}
+	mgr := &update.Manager{
+		Client:       client,
+		OwnerRepo:    ownerRepo,
+		AssetName:    assetName,
+		CurrentLabel: buildinfo.Version,
+	}
+	if _, err := mgr.CheckAndUpdate(); err != nil {
+		log.Printf("auto update skipped: %v", err)
+	}
+	base := runtimeBaseDir()
+	exe := filepath.Join(base, "vrc_osc.exe")
+	gui := filepath.Join(base, "vrc_osc_gui.exe")
+	if _, err := os.Stat(exe); err != nil {
+		showError("vrc_osc_launcher", "missing exe: "+err.Error())
+		log.Fatalf("missing exe: %v", err)
+	}
+	if _, err := os.Stat(gui); err == nil {
+		_ = exec.Command(gui).Start()
+	}
+	args := append([]string{"--no-gui"}, os.Args[1:]...)
+	if err := update.Launch(exe, args); err != nil {
+		showError("vrc_osc_launcher", "launch failed: "+err.Error())
+		log.Fatalf("launch failed: %v", err)
+	}
+}
+
+func showError(title, message string) {
+	user32 := syscall.NewLazyDLL("user32.dll")
+	msgBox := user32.NewProc("MessageBoxW")
+	const mbOK = 0x00000000
+	const mbIconError = 0x00000010
+	_, _, _ = msgBox.Call(
+		0,
+		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(message))),
+		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(title))),
+		uintptr(mbOK|mbIconError),
+	)
+}
+
+func runtimeBaseDir() string {
+	root := common.RootDir()
+	if _, err := os.Stat(filepath.Join(root, "vrc_osc.exe")); err == nil {
+		return root
+	}
+	if _, err := os.Stat(filepath.Join(root, "tmp", "vrc_osc.exe")); err == nil {
+		return filepath.Join(root, "tmp")
+	}
+	return root
+}
--- a/cmd/vrwt_tool/main.go
+++ b/cmd/vrwt_tool/main.go
@@ -0,0 +1,33 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+
+	"vrc_osc_go/internal/consenttool"
+)
+
+func main() {
+	var cfgPath string
+	var mode string
+
+	flag.StringVar(&cfgPath, "config", "config/consent.toml", "path to consent tool config")
+	flag.StringVar(&mode, "mode", "", "generate-json or extract-log")
+	flag.Parse()
+
+	if mode == "" && flag.NArg() > 0 {
+		mode = flag.Arg(0)
+	}
+
+	if mode == "" {
+		fmt.Fprintln(os.Stderr, "missing mode: generate-json or extract-log")
+		os.Exit(2)
+	}
+
+	if err := consenttool.Run(cfgPath, mode); err != nil {
+		log.SetOutput(os.Stderr)
+		log.Fatalf("vrwt_tool: %v", err)
+	}
+}
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -1,37 +1,75 @@
 package app

 import (
-	"fmt"
+	"log"
 	"os"
 	"os/signal"
+	"sync"
 	"syscall"
+	"time"

 	"vrc_osc_go/internal/config"
+	"vrc_osc_go/internal/consenttool"
 	"vrc_osc_go/internal/osc"
 )

-func Run(configPath string) error {
+type discordMuteState struct {
+	mu            sync.Mutex
+	muted         bool
+	buttonPressed bool
+	lastAction    time.Time
+}
+
+func Run(configPath string, mode string) error {
+	if mode != "" {
+		return consenttool.Run(configPath, mode)
+	}
+
 	cfg, err := config.Load(configPath)
 	if err != nil {
 		return err
 	}
+	InitGuestTracker(NewGuestTracker(cfg.VrcLog.GuestNames))
+	log.Printf("vrc_osc_go starting osc=%s:%d config=%s", cfg.OSC.Host, cfg.OSC.Port, configPath)

 	server := osc.NewServer(cfg.OSC.Host, cfg.OSC.Port)
+	discordState := &discordMuteState{muted: true}
+	SetDiscordMuted(true)
 	server.Map("DiscordSend", func(_ string, args []osc.Value) error {
-		return fmt.Errorf("discord mute not implemented yet")
+		log.Printf("received DiscordSend args=%+v", args)
+		if err := handleDiscordSend(discordState, args); err != nil {
+			log.Printf("discord mute failed: %v", err)
+			return err
+		}
+		SetDiscordMuted(discordState.muted)
+		return nil
+	})
+	server.Map("ocrEnabled", func(_ string, args []osc.Value) error {
+		log.Printf("received ocrEnabled args=%+v", args)
+		if err := runPythonOcrFromScreen(); err != nil {
+			log.Printf("ocr failed: %v", err)
+			return err
+		}
+		return nil
 	})

 	errCh := make(chan error, 1)
-	go func() { errCh <- server.Serve() }()
+	go func() {
+		log.Printf("osc server listening on %s:%d", cfg.OSC.Host, cfg.OSC.Port)
+		errCh <- server.Serve()
+	}()
+	go watchVrchatLog()
+	startSelfMonitor(cfg, discordState)

 	sigCh := make(chan os.Signal, 1)
 	signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
 	select {
 	case err := <-errCh:
+		log.Printf("osc server stopped: %v", err)
 		return err
 	case <-sigCh:
+		log.Printf("shutdown signal received")
 		server.Close()
 		return nil
 	}
 }
-
--- a/internal/app/discord_mute.go
+++ b/internal/app/discord_mute.go
@@ -0,0 +1,89 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"vrc_osc_go/internal/osc"
+)
+
+const discordDebounce = 300 * time.Millisecond
+
+func handleDiscordSend(state *discordMuteState, args []osc.Value) error {
+	state.mu.Lock()
+	defer state.mu.Unlock()
+
+	if len(args) == 0 {
+		return fmt.Errorf("OSC args is empty")
+	}
+	isPressed, err := toBool(args[0])
+	if err != nil {
+		return err
+	}
+
+	now := time.Now()
+	if !state.lastAction.IsZero() && now.Sub(state.lastAction) < discordDebounce {
+		return nil
+	}
+
+	if isPressed && !state.buttonPressed {
+		state.buttonPressed = true
+		if state.muted {
+			log.Printf("ACTION VRChat button pressed -> Discord unmute hotkey")
+			if err := pressDiscordMuteHotkey(); err != nil {
+				return err
+			}
+			state.muted = false
+			SetDiscordMuted(state.muted)
+			state.lastAction = now
+		} else {
+			log.Printf("INFO already unmuted")
+		}
+		return nil
+	}
+
+	if !isPressed && state.buttonPressed {
+		state.buttonPressed = false
+		if !state.muted {
+			log.Printf("ACTION VRChat button released -> Discord mute hotkey")
+			if err := pressDiscordMuteHotkey(); err != nil {
+				return err
+			}
+			state.muted = true
+			SetDiscordMuted(state.muted)
+			state.lastAction = now
+		} else {
+			log.Printf("INFO already muted")
+		}
+	}
+
+	return nil
+}
+
+func toBool(v osc.Value) (bool, error) {
+	switch v.Type {
+	case 'T':
+		return true, nil
+	case 'F':
+		return false, nil
+	case 'i':
+		return v.Int != 0, nil
+	case 'f':
+		return v.Float != 0, nil
+	case 's':
+		switch strings.ToLower(strings.TrimSpace(v.Str)) {
+		case "true", "1", "on", "yes":
+			return true, nil
+		case "false", "0", "off", "no":
+			return false, nil
+		default:
+			return false, fmt.Errorf("unsupported OSC value: %q", v.Str)
+		}
+	case 0:
+		return false, fmt.Errorf("unsupported OSC value")
+	default:
+		return false, fmt.Errorf("unsupported OSC type: %q", v.Type)
+	}
+}
--- a/internal/app/guest_status.go
+++ b/internal/app/guest_status.go
@@ -0,0 +1,136 @@
+package app
+
+import (
+	"fmt"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sort"
+	"sync"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+type GuestStatus struct {
+	Name      string    `json:"name"`
+	Present   bool      `json:"present"`
+	LastJoin  time.Time `json:"last_join"`
+	LastLeave time.Time `json:"last_leave"`
+	AbsentFor string    `json:"absent_for"`
+}
+
+type GuestTracker struct {
+	mu      sync.RWMutex
+	current string
+	items   map[string]*GuestStatus
+}
+
+func NewGuestTracker(names []string) *GuestTracker {
+	items := make(map[string]*GuestStatus, len(names))
+	for _, name := range names {
+		items[name] = &GuestStatus{Name: name}
+	}
+	return &GuestTracker{items: items}
+}
+
+func (t *GuestTracker) SetCurrentInstance(label string) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.current = label
+}
+
+func (t *GuestTracker) CurrentInstance() string {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	return t.current
+}
+
+func (t *GuestTracker) MarkJoin(name string, at time.Time) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	s := t.ensure(name)
+	s.Present = true
+	s.LastJoin = at
+	s.AbsentFor = ""
+	_ = t.persistLocked()
+}
+
+func (t *GuestTracker) MarkLeave(name string, at time.Time) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	s := t.ensure(name)
+	s.Present = false
+	s.LastLeave = at
+	if !s.LastJoin.IsZero() {
+		s.AbsentFor = humanSince(at)
+	}
+	_ = t.persistLocked()
+}
+
+func (t *GuestTracker) Snapshot(now time.Time) []GuestStatus {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	out := make([]GuestStatus, 0, len(t.items))
+	for _, s := range t.items {
+		cp := *s
+		if !cp.Present && !cp.LastLeave.IsZero() {
+			cp.AbsentFor = humanSince(cp.LastLeave, now)
+		}
+		out = append(out, cp)
+	}
+	sort.Slice(out, func(i, j int) bool { return out[i].Name < out[j].Name })
+	return out
+}
+
+func (t *GuestTracker) persistLocked() error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	snapshot := make([]GuestStatus, 0, len(t.items))
+	for _, s := range t.items {
+		cp := *s
+		snapshot = append(snapshot, cp)
+	}
+	f, err := os.Create(filepath.Join(dir, "guest_snapshot.json"))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.SetIndent("", "  ")
+	return enc.Encode(snapshot)
+}
+
+func (t *GuestTracker) ensure(name string) *GuestStatus {
+	if s, ok := t.items[name]; ok {
+		return s
+	}
+	s := &GuestStatus{Name: name}
+	t.items[name] = s
+	return s
+}
+
+func humanSince(at time.Time, now ...time.Time) string {
+	ref := time.Now()
+	if len(now) > 0 {
+		ref = now[0]
+	}
+	if at.IsZero() {
+		return ""
+	}
+	d := ref.Sub(at)
+	if d < time.Minute {
+		return "1分未満"
+	}
+	m := int(d.Minutes())
+	if m < 60 {
+		return fmt.Sprintf("%d分前", m)
+	}
+	h := m / 60
+	if h < 24 {
+		return fmt.Sprintf("%d時間前", h)
+	}
+	return fmt.Sprintf("%d日前", h/24)
+}
--- a/internal/app/ocr.go
+++ b/internal/app/ocr.go
@@ -0,0 +1,30 @@
+package app
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+)
+
+func runPythonOcrFromScreen() error {
+	script := `
+import sys
+from pathlib import Path
+root = Path(r"C:\Users\kenny\Documents\git\messpy\VRC\VRWT_Tool\VRC_OSC")
+sys.path.insert(0, str(root / "src"))
+from ocr.ocr_actions import runOcrFromScreen
+runOcrFromScreen()
+`
+	cmd := exec.Command("python", "-c", script)
+	cmd.Dir = `C:\Users\kenny\Documents\git\messpy\VRC\VRWT_Tool\VRC_OSC`
+	out, err := cmd.CombinedOutput()
+	if len(out) > 0 {
+		log.Printf("ocr output: %s", string(out))
+		SetOCRText(string(out))
+		SetTranslateText("翻訳: 未実装")
+	}
+	if err != nil {
+		return fmt.Errorf("ocr failed: %w", err)
+	}
+	return nil
+}
--- a/internal/app/runtime.go
+++ b/internal/app/runtime.go
@@ -0,0 +1,52 @@
+package app
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+func appendRuntimeLog(title, text string) error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	path := filepath.Join(dir, "runtime.log")
+	body := text
+	if body == "" {
+		body = "(empty)"
+	}
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = fmt.Fprintf(f, "\n[%s] %s\n%s\n", time.Now().Format("2006-01-02 15:04:05"), title, body)
+	return err
+}
+
+func AppendRuntimeLog(title, text string) error {
+	return appendRuntimeLog(title, text)
+}
+
+func appendJoinLeaveLog(text string) error {
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	path := filepath.Join(dir, "join_leave.log")
+	body := text
+	if body == "" {
+		body = "(empty)"
+	}
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = fmt.Fprintf(f, "\n[%s] VRC JOIN/LEAVE\n%s\n", time.Now().Format("2006-01-02 15:04:05"), body)
+	return err
+}
--- a/internal/app/self_monitor.go
+++ b/internal/app/self_monitor.go
@@ -0,0 +1,69 @@
+package app
+
+import (
+	"log"
+	"os"
+	"regexp"
+	"strings"
+	"time"
+
+	"vrc_osc_go/internal/config"
+	"vrc_osc_go/internal/osc"
+)
+
+var (
+	selfJoinPattern = regexp.MustCompile(`OnPlayerJoined\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	selfLeftPattern = regexp.MustCompile(`OnPlayerLeft\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+)
+
+func startSelfMonitor(cfg *config.Config, state *discordMuteState) {
+	if cfg.VrcLog.SelfName == "" {
+		return
+	}
+	go func() {
+		lastState := ""
+		for {
+			path, err := findLatestVrchatLog()
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			text, err := os.ReadFile(path)
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			nextState := extractLatestSelfLogState(string(text), cfg.VrcLog.SelfName)
+			if nextState != "" && nextState != lastState {
+				if nextState == "joined" {
+					if err := handleDiscordSend(state, []osc.Value{{Type: 'T', Bool: true}}); err != nil {
+						log.Printf("self monitor discord mute failed: %v", err)
+					}
+				} else if nextState == "left" {
+					if err := handleDiscordSend(state, []osc.Value{{Type: 'F', Bool: false}}); err != nil {
+						log.Printf("self monitor discord mute failed: %v", err)
+					}
+				}
+				lastState = nextState
+			}
+			time.Sleep(2 * time.Second)
+		}
+	}()
+}
+
+func extractLatestSelfLogState(text, selfName string) string {
+	if selfName == "" {
+		return ""
+	}
+	state := ""
+	for _, rawLine := range strings.Split(text, "\n") {
+		if m := selfJoinPattern.FindStringSubmatch(rawLine); len(m) == 2 && strings.TrimSpace(m[1]) == selfName {
+			state = "joined"
+			continue
+		}
+		if m := selfLeftPattern.FindStringSubmatch(rawLine); len(m) == 2 && strings.TrimSpace(m[1]) == selfName {
+			state = "left"
+		}
+	}
+	return state
+}
--- a/internal/app/state.go
+++ b/internal/app/state.go
@@ -0,0 +1,89 @@
+package app
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"vrc_osc_go/internal/common"
+)
+
+type RuntimeState struct {
+	mu             sync.RWMutex
+	DiscordMuted   bool
+	LastOCRText    string
+	LastTranslate  string
+	CurrentWorld   string
+}
+
+var runtimeState = &RuntimeState{}
+var guestTracker *GuestTracker
+
+func SetGuestTracker(t *GuestTracker) { guestTracker = t }
+func InitGuestTracker(t *GuestTracker) {
+	guestTracker = t
+	if guestTracker != nil {
+		guestTracker.mu.Lock()
+		_ = guestTracker.persistLocked()
+		guestTracker.mu.Unlock()
+	}
+}
+func GetGuestTracker() *GuestTracker  { return guestTracker }
+
+func SetDiscordMuted(v bool) {
+	runtimeState.mu.Lock()
+	runtimeState.DiscordMuted = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetOCRText(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.LastOCRText = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetTranslateText(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.LastTranslate = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SetCurrentWorld(v string) {
+	runtimeState.mu.Lock()
+	runtimeState.CurrentWorld = v
+	runtimeState.mu.Unlock()
+	_ = persistRuntimeState()
+}
+
+func SnapshotRuntime() RuntimeState {
+	runtimeState.mu.RLock()
+	defer runtimeState.mu.RUnlock()
+	return *runtimeState
+}
+
+func persistRuntimeState() error {
+	s := SnapshotRuntime()
+	dir := filepath.Join(common.RootDir(), "runtime")
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return err
+	}
+	f, err := os.Create(filepath.Join(dir, "state.json"))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.SetIndent("", "  ")
+	return enc.Encode(map[string]any{
+		"discord_muted": s.DiscordMuted,
+		"ocr":           s.LastOCRText,
+		"translate":     s.LastTranslate,
+		"world":         s.CurrentWorld,
+		"updated_at":    time.Now().Format(time.RFC3339),
+	})
+}
--- a/internal/app/vrc_log.go
+++ b/internal/app/vrc_log.go
@@ -0,0 +1,345 @@
+package app
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+var (
+	joinPattern          = regexp.MustCompile(`OnPlayerJoined\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	leftPattern          = regexp.MustCompile(`OnPlayerLeft\s+(.+?)\s+\(usr_[0-9a-fA-F-]+\)`)
+	worldIdPattern       = regexp.MustCompile(`worldId=(wrld_[0-9a-fA-F-]+)`)
+	instanceIdPattern    = regexp.MustCompile(`instanceId=([^,}\s]+)`)
+	worldNamePattern     = regexp.MustCompile(`worldName=([^,}]+)`)
+	worldLocationPattern = regexp.MustCompile(`worldId=(wrld_[0-9a-fA-F-]+):([^\s,\]\)\"']+)`)
+	worldPattern         = regexp.MustCompile(`(wrld_[0-9a-fA-F-]+(?::[^\s\]\)\"']+)?)`)
+	enteringRoomPattern  = regexp.MustCompile(`\[Behaviour\]\s+(?:Entering Room|Joining or Creating Room):\s+(.+)$`)
+)
+
+type vrcLogState struct {
+	location         string
+	worldID          string
+	instanceID       string
+	worldName        string
+	pendingWorldName string
+	presentSet       map[string]struct{}
+	initialized      bool
+}
+
+func getVrchatLogDir() (string, error) {
+	userProfile := os.Getenv("USERPROFILE")
+	if userProfile == "" {
+		return "", os.ErrNotExist
+	}
+	return filepath.Join(userProfile, "AppData", "LocalLow", "VRChat", "VRChat"), nil
+}
+
+func findLatestVrchatLog() (string, error) {
+	dir, err := getVrchatLogDir()
+	if err != nil {
+		return "", err
+	}
+
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return "", err
+	}
+
+	var latest string
+	var latestMod time.Time
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		if !strings.HasSuffix(strings.ToLower(name), ".log") && !strings.HasSuffix(strings.ToLower(name), ".txt") {
+			continue
+		}
+		info, err := entry.Info()
+		if err != nil {
+			continue
+		}
+		if info.ModTime().After(latestMod) {
+			latestMod = info.ModTime()
+			latest = filepath.Join(dir, name)
+		}
+	}
+	if latest == "" {
+		return "", os.ErrNotExist
+	}
+	return latest, nil
+}
+
+func watchVrchatLog() {
+	lastPath := ""
+	lastSize := int64(0)
+	state := &vrcLogState{
+		presentSet: map[string]struct{}{},
+	}
+	for {
+		path, err := findLatestVrchatLog()
+		if err != nil {
+			time.Sleep(2 * time.Second)
+			continue
+		}
+		info, err := os.Stat(path)
+		if err != nil {
+			time.Sleep(2 * time.Second)
+			continue
+		}
+		if path != lastPath {
+			log.Printf("vrchat log watching %s", path)
+			lastPath = path
+			lastSize = 0
+			if err := scanExistingVrchatLog(path, state); err != nil {
+				log.Printf("vrchat log initial scan failed: %v", err)
+			}
+			if info2, err := os.Stat(path); err == nil {
+				lastSize = info2.Size()
+			} else {
+				lastSize = info.Size()
+			}
+			time.Sleep(2 * time.Second)
+			continue
+		}
+
+		if info.Size() < lastSize {
+			lastSize = 0
+		}
+		if info.Size() > lastSize {
+			f, err := os.Open(path)
+			if err != nil {
+				time.Sleep(2 * time.Second)
+				continue
+			}
+			_, _ = f.Seek(lastSize, 0)
+			scanner := bufio.NewScanner(f)
+			for scanner.Scan() {
+				line := scanner.Text()
+				if err := appendRuntimeLog("VRC LOG", line); err != nil {
+					log.Printf("append runtime log failed: %v", err)
+				}
+				if changed, worldLabel := updateWorldState(state, line); changed {
+					log.Printf("world changed: %s", worldLabel)
+					state.presentSet = map[string]struct{}{}
+					SetCurrentWorld(worldLabel)
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.SetCurrentInstance(worldLabel)
+					}
+					_ = appendRuntimeLog("VRC WORLD", worldLabel)
+				}
+				at := extractLineTime(line)
+				if m := joinPattern.FindStringSubmatch(line); len(m) == 2 {
+					name := strings.TrimSpace(m[1])
+					state.presentSet[name] = struct{}{}
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.MarkJoin(name, at)
+					}
+					out := fmt.Sprintf("[join] %s (%d)", name, len(state.presentSet))
+					log.Print(out)
+					_ = appendJoinLeaveLog(out)
+					continue
+				}
+				if m := leftPattern.FindStringSubmatch(line); len(m) == 2 {
+					name := strings.TrimSpace(m[1])
+					delete(state.presentSet, name)
+					if tracker := GetGuestTracker(); tracker != nil {
+						tracker.MarkLeave(name, at)
+					}
+					out := fmt.Sprintf("[leave] %s (%d)", name, len(state.presentSet))
+					log.Print(out)
+					_ = appendJoinLeaveLog(out)
+					continue
+				}
+			}
+			lastSize = info.Size()
+			_ = f.Close()
+		}
+		time.Sleep(2 * time.Second)
+	}
+}
+
+func scanExistingVrchatLog(path string, state *vrcLogState) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	state.presentSet = map[string]struct{}{}
+	state.location = ""
+	state.worldID = ""
+	state.instanceID = ""
+	state.worldName = ""
+	state.pendingWorldName = ""
+	state.initialized = false
+
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if changed, _ := updateWorldState(state, line); changed {
+			state.presentSet = map[string]struct{}{}
+		}
+		if m := joinPattern.FindStringSubmatch(line); len(m) == 2 {
+			name := strings.TrimSpace(m[1])
+			state.presentSet[name] = struct{}{}
+			if tracker := GetGuestTracker(); tracker != nil {
+				tracker.MarkJoin(name, extractLineTime(line))
+			}
+			continue
+		}
+		if m := leftPattern.FindStringSubmatch(line); len(m) == 2 {
+			name := strings.TrimSpace(m[1])
+			delete(state.presentSet, name)
+			if tracker := GetGuestTracker(); tracker != nil {
+				tracker.MarkLeave(name, extractLineTime(line))
+			}
+			continue
+		}
+	}
+	if err := scanner.Err(); err != nil {
+		return err
+	}
+	state.initialized = true
+	if state.worldName != "" {
+		log.Printf("world changed: %s", state.worldName)
+		SetCurrentWorld(state.worldName)
+		if tracker := GetGuestTracker(); tracker != nil {
+			tracker.SetCurrentInstance(state.worldName)
+		}
+		_ = appendRuntimeLog("VRC WORLD", state.worldName)
+	}
+	return nil
+}
+
+func updateWorldState(state *vrcLogState, line string) (bool, string) {
+	worldID := ""
+	instanceID := ""
+	worldName := ""
+	roomTitle := ""
+
+	if m := enteringRoomPattern.FindStringSubmatch(line); len(m) == 2 {
+		roomTitle = strings.TrimSpace(m[1])
+		state.pendingWorldName = roomTitle
+	}
+	if m := worldLocationPattern.FindStringSubmatch(line); len(m) == 3 {
+		worldID = strings.TrimSpace(m[1])
+		instanceID = strings.TrimSpace(m[2])
+	}
+
+	if m := worldIdPattern.FindStringSubmatch(line); len(m) == 2 {
+		worldID = strings.TrimSpace(m[1])
+	}
+	if m := instanceIdPattern.FindStringSubmatch(line); len(m) == 2 {
+		instanceID = strings.TrimSpace(m[1])
+	}
+	if m := worldNamePattern.FindStringSubmatch(line); len(m) == 2 {
+		worldName = strings.TrimSpace(m[1])
+	}
+
+	if m := enteringRoomPattern.FindStringSubmatch(line); len(m) == 2 && worldID == "" {
+		if worldMatch := worldPattern.FindStringSubmatch(m[1]); len(worldMatch) == 2 {
+			worldID = worldMatch[1]
+		}
+	}
+
+	nextLocation := ""
+	if worldID != "" {
+		nextLocation = worldID
+		if instanceID != "" {
+			nextLocation = worldID + ":" + instanceID
+		}
+	}
+
+	if nextLocation != "" && nextLocation != state.location {
+		state.location = nextLocation
+		state.worldID = worldID
+		state.instanceID = instanceID
+		if worldName != "" {
+			state.worldName = worldName
+		} else if shouldUseRoomTitlePreferLatest(roomTitle, state.worldName) {
+			state.worldName = roomTitle
+		}
+		label := state.worldName
+		if label == "" {
+			label = state.worldID
+		}
+		if label == "" {
+			label = nextLocation
+		}
+		if state.initialized {
+			log.Printf("world changed: %s", label)
+			_ = appendRuntimeLog("VRC WORLD", label)
+		}
+		return true, label
+	}
+
+	if worldName != "" {
+		state.worldName = worldName
+		state.pendingWorldName = ""
+		return false, ""
+	}
+	if shouldUseRoomTitlePreferLatest(roomTitle, state.worldName) {
+		state.worldName = roomTitle
+	}
+
+	return false, ""
+}
+
+func shouldUseRoomTitle(roomTitle, currentWorldName string) bool {
+	if roomTitle == "" {
+		return false
+	}
+	if strings.Contains(roomTitle, "Home Location") {
+		return false
+	}
+	if roomTitle == "Holiday-Cottage" && currentWorldName != "" && currentWorldName != roomTitle {
+		return false
+	}
+	if currentWorldName == "" {
+		return true
+	}
+	if roomTitle == currentWorldName {
+		return false
+	}
+	if len(roomTitle) > len(currentWorldName) {
+		return true
+	}
+	if strings.Contains(roomTitle, "「") || strings.Contains(roomTitle, "」") || strings.Contains(roomTitle, "[") {
+		return true
+	}
+	return false
+}
+
+func shouldUseRoomTitlePreferLatest(roomTitle, currentWorldName string) bool {
+	if roomTitle == "" {
+		return false
+	}
+	if strings.Contains(roomTitle, "Home Location") {
+		return false
+	}
+	if currentWorldName == "" {
+		return true
+	}
+	if roomTitle == currentWorldName {
+		return false
+	}
+	return true
+}
+
+func extractLineTime(line string) time.Time {
+	if len(line) < 19 {
+		return time.Now()
+	}
+	t, err := time.ParseInLocation("2006.01.02 15:04:05", line[:19], time.Local)
+	if err == nil {
+		return t
+	}
+	return time.Now()
+}
--- a/internal/buildinfo/buildinfo.go
+++ b/internal/buildinfo/buildinfo.go
@@ -0,0 +1,6 @@
+package buildinfo
+
+var (
+	Version   = "dev"
+	BuildTime = "unknown"
+)
--- a/internal/common/project_paths.go
+++ b/internal/common/project_paths.go
@@ -0,0 +1,16 @@
+package common
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func RuntimeBaseDir() string {
+	exe, err := os.Executable()
+	if err == nil {
+		return filepath.Dir(exe)
+	}
+	return "."
+}
+
+func RootDir() string { return RuntimeBaseDir() }
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -3,12 +3,16 @@ package config
 import (
 	"bufio"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
+
+	"vrc_osc_go/internal/common"
 )

 type Config struct {
-	OSC OSCConfig
+	OSC    OSCConfig
+	VrcLog VrcLogConfig
 }

 type OSCConfig struct {
@@ -16,8 +20,24 @@ type OSCConfig struct {
 	Port int
 }

+type VrcLogConfig struct {
+	SelfName     string
+	GuestNames   []string
+	GuestFile    string
+	StaffNames   []string
+	MissingCount int
+	LogPatterns  []string
+}
+
 func Load(path string) (*Config, error) {
-	cfg := &Config{OSC: OSCConfig{Host: "127.0.0.1", Port: 9001}}
+	cfg := &Config{
+		OSC: OSCConfig{Host: "127.0.0.1", Port: 9001},
+	}
+	if path == "" {
+		path = filepath.Join(common.RootDir(), "config", "config.toml")
+	} else if !filepath.IsAbs(path) {
+		path = filepath.Join(common.RootDir(), path)
+	}
 	file, err := os.Open(path)
 	if err != nil {
 		return cfg, nil
@@ -28,6 +48,7 @@ func Load(path string) (*Config, error) {
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		line := strings.TrimSpace(scanner.Text())
+		line = strings.TrimPrefix(line, "\ufeff")
 		if line == "" || strings.HasPrefix(line, "#") {
 			continue
 		}
@@ -42,7 +63,8 @@ func Load(path string) (*Config, error) {
 		key := strings.TrimSpace(parts[0])
 		val := strings.TrimSpace(parts[1])
 		val = strings.Trim(val, "\"'")
-		if section == "osc" {
+		switch section {
+		case "osc":
 			switch key {
 			case "host":
 				cfg.OSC.Host = val
@@ -51,8 +73,74 @@ func Load(path string) (*Config, error) {
 					cfg.OSC.Port = n
 				}
 			}
+		case "self":
+			if key == "name" {
+				cfg.VrcLog.SelfName = val
+			}
+		case "notice":
+			if key == "missing_count" {
+				if n, err := strconv.Atoi(val); err == nil {
+					cfg.VrcLog.MissingCount = n
+				}
+			}
+		case "vrc_log":
+			if key == "patterns" {
+				cfg.VrcLog.LogPatterns = parseList(val)
+			}
+		case "staff":
+			if key == "names" {
+				cfg.VrcLog.StaffNames = parseList(val)
+			}
+		case "guest":
+			switch key {
+			case "names":
+				cfg.VrcLog.GuestNames = parseList(val)
+			case "file":
+				cfg.VrcLog.GuestFile = val
+			}
+		}
+	}
+	if cfg.VrcLog.GuestFile != "" {
+		if !filepath.IsAbs(cfg.VrcLog.GuestFile) {
+			cfg.VrcLog.GuestFile = filepath.Join(common.RootDir(), cfg.VrcLog.GuestFile)
+		}
+		if names, err := loadLines(cfg.VrcLog.GuestFile); err == nil {
+			cfg.VrcLog.GuestNames = names
 		}
 	}
 	return cfg, scanner.Err()
 }

+func parseList(value string) []string {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "[")
+	value = strings.TrimSuffix(value, "]")
+	if value == "" {
+		return nil
+	}
+	parts := strings.Split(value, ",")
+	out := make([]string, 0, len(parts))
+	for _, part := range parts {
+		part = strings.TrimSpace(strings.Trim(part, "\"'"))
+		if part != "" {
+			out = append(out, part)
+		}
+	}
+	return out
+}
+
+func loadLines(path string) ([]string, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	lines := strings.Split(string(data), "\n")
+	out := make([]string, 0, len(lines))
+	for _, line := range lines {
+		line = strings.TrimSpace(strings.TrimPrefix(line, "\ufeff"))
+		if line != "" && !strings.HasPrefix(line, "#") {
+			out = append(out, line)
+		}
+	}
+	return out, nil
+}
--- a/internal/consenttool/config.go
+++ b/internal/consenttool/config.go
@@ -0,0 +1,144 @@
+package consenttool
+
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	Consent ConsentConfig
+	Log     LogConfig
+}
+
+type ConsentConfig struct {
+	InputCSV        string
+	OutputJSON      string
+	DisplayFields   []string
+	ConsentFields   []string
+	ConsentValues   []string
+	NormalizeCase   bool
+	AllowDuplicates bool
+}
+
+type LogConfig struct {
+	InputPath    string
+	OutputPath   string
+	IncludeRegex string
+	KeepNonMatch bool
+}
+
+func LoadConfig(path string) (*Config, error) {
+	cfg := &Config{
+		Consent: ConsentConfig{
+			InputCSV:        "config/consent.csv",
+			OutputJSON:      "config/consent_list.json",
+			DisplayFields:   []string{"display_name", "vrchat_name", "name"},
+			ConsentFields:   []string{"consent", "agree", "agreed", "checked"},
+			ConsentValues:   []string{"1", "true", "yes", "y", "on", "checked"},
+			NormalizeCase:   false,
+			AllowDuplicates: false,
+		},
+		Log: LogConfig{
+			InputPath:    "runtime/output_log.txt",
+			OutputPath:   "runtime/research_log.txt",
+			IncludeRegex: `\[[A-Z0-9:_ -]+\]`,
+			KeepNonMatch: false,
+		},
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var section string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		line = strings.TrimPrefix(line, "\ufeff")
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			section = strings.Trim(line, "[]")
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		val := strings.TrimSpace(parts[1])
+		val = strings.Trim(val, "\"'")
+
+		switch section {
+		case "consent":
+			switch key {
+			case "input_csv":
+				cfg.Consent.InputCSV = val
+			case "output_json":
+				cfg.Consent.OutputJSON = val
+			case "display_fields":
+				cfg.Consent.DisplayFields = parseList(val)
+			case "consent_fields":
+				cfg.Consent.ConsentFields = parseList(val)
+			case "consent_values":
+				cfg.Consent.ConsentValues = parseList(val)
+			case "normalize_case":
+				cfg.Consent.NormalizeCase = parseBool(val)
+			case "allow_duplicates":
+				cfg.Consent.AllowDuplicates = parseBool(val)
+			}
+		case "log":
+			switch key {
+			case "input_path":
+				cfg.Log.InputPath = val
+			case "output_path":
+				cfg.Log.OutputPath = val
+			case "include_regex":
+				cfg.Log.IncludeRegex = val
+			case "keep_non_match":
+				cfg.Log.KeepNonMatch = parseBool(val)
+			}
+		}
+	}
+	return cfg, scanner.Err()
+}
+
+func parseList(value string) []string {
+	value = strings.TrimSpace(value)
+	value = strings.TrimPrefix(value, "[")
+	value = strings.TrimSuffix(value, "]")
+	if value == "" {
+		return nil
+	}
+	items := strings.Split(value, ",")
+	out := make([]string, 0, len(items))
+	for _, item := range items {
+		item = strings.TrimSpace(item)
+		item = strings.Trim(item, "\"'")
+		if item != "" {
+			out = append(out, item)
+		}
+	}
+	return out
+}
+
+func parseBool(value string) bool {
+	n, err := strconv.ParseBool(strings.TrimSpace(value))
+	return err == nil && n
+}
+
+func resolvePath(baseDir, value string) string {
+	if value == "" {
+		return ""
+	}
+	if filepath.IsAbs(value) {
+		return value
+	}
+	return filepath.Clean(filepath.Join(baseDir, value))
+}
--- a/internal/consenttool/tool.go
+++ b/internal/consenttool/tool.go
@@ -0,0 +1,183 @@
+package consenttool
+
+import (
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+func Run(configPath string, mode string) error {
+	cfg, err := LoadConfig(configPath)
+	if err != nil {
+		return err
+	}
+	baseDir := filepath.Dir(configPath)
+
+	switch mode {
+	case "generate-json":
+		return generateJSON(cfg, baseDir)
+	case "extract-log":
+		return extractLog(cfg, baseDir)
+	default:
+		return fmt.Errorf("unknown mode %q", mode)
+	}
+}
+
+func generateJSON(cfg *Config, baseDir string) error {
+	inputPath := resolvePath(baseDir, cfg.Consent.InputCSV)
+	outputPath := resolvePath(baseDir, cfg.Consent.OutputJSON)
+
+	rows, err := readCSVRows(inputPath)
+	if err != nil {
+		return err
+	}
+
+	names := collectConsentedNames(rows, cfg.Consent)
+	body, err := json.MarshalIndent(names, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(filepath.Dir(outputPath), 0o755); err != nil {
+		return err
+	}
+	return os.WriteFile(outputPath, append(body, '\n'), 0o644)
+}
+
+func extractLog(cfg *Config, baseDir string) error {
+	inputPath := resolvePath(baseDir, cfg.Log.InputPath)
+	outputPath := resolvePath(baseDir, cfg.Log.OutputPath)
+
+	data, err := os.ReadFile(inputPath)
+	if err != nil {
+		return err
+	}
+
+	re, err := regexp.Compile(cfg.Log.IncludeRegex)
+	if err != nil {
+		return err
+	}
+
+	var kept []string
+	for _, line := range strings.Split(strings.ReplaceAll(string(data), "\r\n", "\n"), "\n") {
+		if re.MatchString(line) {
+			kept = append(kept, line)
+			continue
+		}
+		if cfg.Log.KeepNonMatch {
+			kept = append(kept, line)
+		}
+	}
+
+	body := strings.Join(kept, "\n")
+	if body != "" {
+		body += "\n"
+	}
+	if err := os.MkdirAll(filepath.Dir(outputPath), 0o755); err != nil {
+		return err
+	}
+	return os.WriteFile(outputPath, []byte(body), 0o644)
+}
+
+func readCSVRows(path string) ([]map[string]string, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	r := csv.NewReader(file)
+	headers, err := r.Read()
+	if err != nil {
+		return nil, err
+	}
+	for i, header := range headers {
+		headers[i] = strings.TrimPrefix(strings.TrimSpace(header), "\ufeff")
+	}
+
+	var rows []map[string]string
+	for {
+		record, err := r.Read()
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return nil, err
+		}
+		row := make(map[string]string, len(headers))
+		for i, header := range headers {
+			if i < len(record) {
+				row[strings.TrimSpace(header)] = strings.TrimPrefix(strings.TrimSpace(record[i]), "\ufeff")
+			}
+		}
+		rows = append(rows, row)
+	}
+	return rows, nil
+}
+
+func collectConsentedNames(rows []map[string]string, cfg ConsentConfig) []string {
+	displayFields := cfg.DisplayFields
+	if len(displayFields) == 0 {
+		displayFields = []string{"display_name", "vrchat_name", "name"}
+	}
+	consentFields := cfg.ConsentFields
+	if len(consentFields) == 0 {
+		consentFields = []string{"consent", "agree", "agreed", "checked"}
+	}
+	accepted := make(map[string]struct{})
+	var names []string
+
+	for _, row := range rows {
+		if !rowIsConsented(row, consentFields, cfg.ConsentValues) {
+			continue
+		}
+		name := firstNonEmpty(row, displayFields)
+		if name == "" {
+			continue
+		}
+		key := name
+		if cfg.NormalizeCase {
+			key = strings.ToLower(key)
+		}
+		if !cfg.AllowDuplicates {
+			if _, ok := accepted[key]; ok {
+				continue
+			}
+			accepted[key] = struct{}{}
+		}
+		names = append(names, name)
+	}
+	return names
+}
+
+func rowIsConsented(row map[string]string, fields []string, values []string) bool {
+	if len(values) == 0 {
+		values = []string{"1", "true", "yes", "y", "on", "checked"}
+	}
+	allowed := make(map[string]struct{}, len(values))
+	for _, v := range values {
+		allowed[strings.ToLower(strings.TrimSpace(v))] = struct{}{}
+	}
+	for _, field := range fields {
+		if v, ok := row[field]; ok {
+			if _, ok := allowed[strings.ToLower(strings.TrimSpace(v))]; ok {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func firstNonEmpty(row map[string]string, fields []string) string {
+	for _, field := range fields {
+		if v := strings.TrimSpace(row[field]); v != "" {
+			return v
+		}
+	}
+	return ""
+}
--- a/internal/consenttool/tool_test.go
+++ b/internal/consenttool/tool_test.go
@@ -0,0 +1,44 @@
+package consenttool
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestCollectConsentedNames(t *testing.T) {
+	rows := []map[string]string{
+		{"display_name": "Alice", "consent": "true"},
+		{"display_name": "Bob", "consent": "false"},
+		{"display_name": "Alice", "consent": "yes"},
+	}
+
+	names := collectConsentedNames(rows, ConsentConfig{})
+	if len(names) != 1 || names[0] != "Alice" {
+		t.Fatalf("unexpected names: %#v", names)
+	}
+}
+
+func TestExtractLog(t *testing.T) {
+	dir := t.TempDir()
+	cfg := &Config{
+		Log: LogConfig{
+			InputPath:    "input.log",
+			OutputPath:   "out.log",
+			IncludeRegex: `ID:[0-9]+`,
+		},
+	}
+	if err := os.WriteFile(filepath.Join(dir, "input.log"), []byte("x\nID:1 hello\nnope\n"), 0o600); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	if err := extractLog(cfg, dir); err != nil {
+		t.Fatalf("extractLog: %v", err)
+	}
+	out, err := os.ReadFile(filepath.Join(dir, "out.log"))
+	if err != nil {
+		t.Fatalf("ReadFile: %v", err)
+	}
+	if string(out) != "ID:1 hello\n" {
+		t.Fatalf("unexpected output: %q", string(out))
+	}
+}
--- a/internal/osc/server.go
+++ b/internal/osc/server.go
@@ -2,7 +2,9 @@ package osc

 import (
 	"bytes"
+	"encoding/binary"
 	"fmt"
+	"math"
 	"net"
 	"strings"
 	"sync"
@@ -33,7 +35,12 @@ func NewServer(host string, port int) *Server {
 }

 func (s *Server) Map(param string, h Handler) { s.handlers["/avatar/parameters/"+param] = h }
-func (s *Server) Close() error                { if s.conn != nil { return s.conn.Close() }; return nil }
+func (s *Server) Close() error {
+	if s.conn != nil {
+		return s.conn.Close()
+	}
+	return nil
+}

 func (s *Server) Serve() error {
 	addr, err := net.ResolveUDPAddr("udp", s.addr)
@@ -65,13 +72,70 @@ func (s *Server) Serve() error {
 }

 func parseMessage(b []byte) (string, []Value, error) {
-	parts := bytes.SplitN(b, []byte{0}, 2)
-	if len(parts) == 0 {
-		return "", nil, fmt.Errorf("invalid osc")
+	address, offset, err := parsePaddedString(b, 0)
+	if err != nil {
+		return "", nil, err
 	}
-	address := string(parts[0])
 	if !strings.HasPrefix(address, "/") {
 		return "", nil, fmt.Errorf("invalid address")
 	}
-	return address, nil, nil
+	if offset >= len(b) {
+		return address, nil, nil
+	}
+	typetags, offset, err := parsePaddedString(b, offset)
+	if err != nil {
+		return "", nil, err
+	}
+	if !strings.HasPrefix(typetags, ",") {
+		return address, nil, nil
+	}
+	var values []Value
+	for _, tag := range typetags[1:] {
+		switch tag {
+		case 'i':
+			if offset+4 > len(b) {
+				return "", nil, fmt.Errorf("invalid int")
+			}
+			values = append(values, Value{Type: 'i', Int: int32(binary.BigEndian.Uint32(b[offset : offset+4]))})
+			offset += 4
+		case 'f':
+			if offset+4 > len(b) {
+				return "", nil, fmt.Errorf("invalid float")
+			}
+			bits := binary.BigEndian.Uint32(b[offset : offset+4])
+			values = append(values, Value{Type: 'f', Float: math.Float32frombits(bits)})
+			offset += 4
+		case 's':
+			s, next, err := parsePaddedString(b, offset)
+			if err != nil {
+				return "", nil, err
+			}
+			values = append(values, Value{Type: 's', Str: s})
+			offset = next
+		case 'T':
+			values = append(values, Value{Type: 'T', Bool: true})
+		case 'F':
+			values = append(values, Value{Type: 'F', Bool: false})
+		}
+	}
+	return address, values, nil
+}
+
+func parsePaddedString(b []byte, offset int) (string, int, error) {
+	if offset >= len(b) {
+		return "", offset, fmt.Errorf("invalid osc string")
+	}
+	end := bytes.IndexByte(b[offset:], 0)
+	if end < 0 {
+		return "", offset, fmt.Errorf("invalid osc string")
+	}
+	s := string(b[offset : offset+end])
+	next := offset + end + 1
+	for next%4 != 0 {
+		next++
+	}
+	if next > len(b) {
+		next = len(b)
+	}
+	return s, next, nil
 }
--- a/internal/update/manager.go
+++ b/internal/update/manager.go
@@ -0,0 +1,106 @@
+package update
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+
+	"vrc_osc_go/internal/buildinfo"
+	"vrc_osc_go/internal/common"
+)
+
+type Manager struct {
+	Client       *Client
+	OwnerRepo    string
+	AssetName    string
+	CurrentLabel string
+}
+
+func (m *Manager) CheckAndUpdate() (bool, error) {
+	if m.Client == nil || m.OwnerRepo == "" || m.AssetName == "" {
+		return false, nil
+	}
+	latest, err := m.Client.LatestRelease(m.OwnerRepo)
+	if err != nil {
+		return false, err
+	}
+	if latest.TagName == "" || latest.TagName == m.CurrentLabel {
+		return false, nil
+	}
+	assetURL := ""
+	for _, a := range latest.Assets {
+		if a.Name == m.AssetName {
+			assetURL = a.URL
+			break
+		}
+	}
+	if assetURL == "" {
+		return false, fmt.Errorf("asset %q not found in release %s", m.AssetName, latest.TagName)
+	}
+	base := common.RootDir()
+	tmpDir := filepath.Join(base, "update", latest.TagName)
+	if err := os.MkdirAll(tmpDir, 0o755); err != nil {
+		return false, err
+	}
+	zipPath := filepath.Join(tmpDir, m.AssetName)
+	log.Printf("update available: %s -> %s", m.CurrentLabel, latest.TagName)
+	if err := m.Client.DownloadAsset(assetURL, zipPath); err != nil {
+		return false, err
+	}
+	if err := ExtractZip(zipPath, tmpDir); err != nil {
+		return false, err
+	}
+	exePath := filepath.Join(base, CurrentExeName())
+	newExe := filepath.Join(tmpDir, CurrentExeName())
+	if _, err := os.Stat(newExe); err != nil {
+		return false, err
+	}
+	backup := exePath + ".bak"
+	_ = os.Remove(backup)
+	if err := os.Rename(exePath, backup); err != nil {
+		return false, err
+	}
+	if err := CopyFile(newExe, exePath); err != nil {
+		_ = os.Rename(backup, exePath)
+		return false, err
+	}
+	_ = os.Remove(backup)
+	return true, nil
+}
+
+func CopyFile(src, dst string) error {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+	if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
+		return err
+	}
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+	_, err = io.Copy(out, in)
+	return err
+}
+
+func Launch(exe string, args []string) error {
+	cmd := exec.Command(exe, args...)
+	cmd.Dir = filepath.Dir(exe)
+	return cmd.Start()
+}
+
+func Version() string { return buildinfo.Version }
+
+func CurrentExeName() string {
+	if runtime.GOOS == "windows" {
+		return "vrc_osc.exe"
+	}
+	return "vrc_osc"
+}
--- a/internal/update/release.go
+++ b/internal/update/release.go
@@ -0,0 +1,125 @@
+package update
+
+import (
+	"archive/zip"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+type ReleaseInfo struct {
+	TagName string `json:"tag_name"`
+	Assets  []struct {
+		Name string `json:"name"`
+		URL  string `json:"browser_download_url"`
+	} `json:"assets"`
+}
+
+type Client struct {
+	BaseURL string
+	HTTP    *http.Client
+}
+
+func (c *Client) LatestRelease(ownerRepo string) (*ReleaseInfo, error) {
+	req, err := http.NewRequest(http.MethodGet, c.apiURL(ownerRepo, "/releases/latest"), nil)
+	if err != nil {
+		return nil, err
+	}
+	var info ReleaseInfo
+	if err := c.doJSON(req, &info); err != nil {
+		return nil, err
+	}
+	return &info, nil
+}
+
+func (c *Client) DownloadAsset(url, dst string) error {
+	req, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return err
+	}
+	resp, err := c.httpClient().Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("download failed: %s", resp.Status)
+	}
+	f, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = io.Copy(f, resp.Body)
+	return err
+}
+
+func ExtractZip(zipPath, dstDir string) error {
+	zr, err := zip.OpenReader(zipPath)
+	if err != nil {
+		return err
+	}
+	defer zr.Close()
+	root := filepath.Clean(dstDir) + string(os.PathSeparator)
+	for _, f := range zr.File {
+		target := filepath.Clean(filepath.Join(dstDir, f.Name))
+		if target != filepath.Clean(dstDir) && !strings.HasPrefix(target, root) {
+			return fmt.Errorf("zip path escapes destination: %s", f.Name)
+		}
+		if f.FileInfo().IsDir() {
+			if err := os.MkdirAll(target, 0o755); err != nil {
+				return err
+			}
+			continue
+		}
+		if err := os.MkdirAll(filepath.Dir(target), 0o755); err != nil {
+			return err
+		}
+		rc, err := f.Open()
+		if err != nil {
+			return err
+		}
+		out, err := os.Create(target)
+		if err != nil {
+			rc.Close()
+			return err
+		}
+		_, copyErr := io.Copy(out, rc)
+		out.Close()
+		rc.Close()
+		if copyErr != nil {
+			return copyErr
+		}
+	}
+	return nil
+}
+
+func (c *Client) apiURL(ownerRepo, suffix string) string {
+	base := strings.TrimRight(c.BaseURL, "/")
+	return base + "/api/v1/repos/" + strings.Trim(ownerRepo, "/") + suffix
+}
+
+func (c *Client) doJSON(req *http.Request, out any) error {
+	resp, err := c.httpClient().Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(io.LimitReader(resp.Body, 2048))
+		return fmt.Errorf("request failed: %s: %s", resp.Status, strings.TrimSpace(string(body)))
+	}
+	return json.NewDecoder(resp.Body).Decode(out)
+}
+
+func (c *Client) httpClient() *http.Client {
+	if c.HTTP != nil {
+		return c.HTTP
+	}
+	return &http.Client{Timeout: 30 * time.Second}
+}
Author	SHA1	Message	Date
every_holiday	75f2d8b9c2	Fix GUI instance counts and launcher tmp paths	2026-06-25 02:36:55 +09:00
every_holiday	23d5fcfcda	Make launcher a Windows GUI app	2026-06-25 00:09:58 +09:00
every_holiday	329bcd0c50	Use windowsgui in release workflow All checks were successful build-windows-exe / build (push) Successful in 2m7s Details	2026-06-25 00:02:41 +09:00
every_holiday	93a0251082	Merge remote-tracking branch 'origin/main' into go-rewrite	2026-06-25 00:00:33 +09:00
every_holiday	63700d9d29	Restore VRTW_Tool title; note discord mute regression	2026-06-24 03:08:30 +09:00
every_holiday	ab9551c241	Improve GUI guest sorting and presence display	2026-06-24 02:38:06 +09:00
every_holiday	b6421958af	Add Windows app icon assets	2026-06-24 02:17:04 +09:00
every_holiday	8bff7af6bc	Add release auto-update launcher All checks were successful build-windows-exe / build (push) Successful in 1m47s Details	2026-06-24 02:08:19 +09:00
every_holiday	760d6988cb	Attach Windows builds to Gitea release All checks were successful build-windows-exe / build (push) Successful in 1m5s Details	2026-06-24 02:00:03 +09:00
every_holiday	74ff0d3c76	Remove unsupported artifact upload from Gitea workflow All checks were successful build-windows-exe / build (push) Successful in 46s Details	2026-06-24 01:54:59 +09:00
every_holiday	72aa10de46	Refine Go runtime behavior and log handling Some checks failed build-windows-exe / build (push) Failing after 48s Details	2026-06-24 01:53:24 +09:00
every_holiday	b34c2fafb4	Force Go module mode in Gitea workflow Some checks failed build-windows-exe / build (push) Failing after 52s Details	2026-06-24 01:00:42 +09:00
every_holiday	a4394bfde6	Add Go module file for Gitea build Some checks failed build-windows-exe / build (push) Failing after 29s Details	2026-06-24 00:59:22 +09:00
every_holiday	450316d861	Debug Go module path in Gitea workflow Some checks failed build-windows-exe / build (push) Failing after 30s Details	2026-06-24 00:57:20 +09:00
every_holiday	e3f497def4	Use explicit cd in Gitea workflow Some checks failed build-windows-exe / build (push) Failing after 30s Details	2026-06-24 00:55:26 +09:00
every_holiday	1975bf6e08	Use public clone URL in Gitea workflow Some checks failed build-windows-exe / build (push) Failing after 30s Details	2026-06-24 00:54:24 +09:00
every_holiday	15a24f32ba	Use git clone in Gitea workflow Some checks failed build-windows-exe / build (push) Failing after 3s Details	2026-06-24 00:53:24 +09:00
every_holiday	ad81bc6985	Use Ubuntu runner for Windows exe build Some checks failed build-windows-exe / build (push) Failing after 2m9s Details	2026-06-24 00:50:07 +09:00
every_holiday	b189adebe5	Move Gitea workflow to repo root Some checks failed build-windows-exe / build (push) Has been cancelled Details	2026-06-24 00:45:30 +09:00
every_holiday	bd29099425	Add Go consent tool and Gitea build workflow	2026-06-24 00:43:46 +09:00
every_holiday	fad20a5677	Add Gitea Windows exe build workflow	2026-06-24 00:38:14 +09:00
messypy	66f94eaa9e	Refine VRC OSC project architecture	2026-06-24 00:38:14 +09:00
messypy	6a2c9bb39c	Remove deprecated env file references	2026-06-24 00:38:14 +09:00
messypy	da8a9b3c3f	Move app settings into config files	2026-06-24 00:38:14 +09:00
messypy	6f22223394	Improve OCR speed and preprocessing	2026-06-24 00:38:14 +09:00
messypy	e8eb9463fa	Document VRC OSC setup	2026-06-24 00:38:14 +09:00
messypy	54854969b9	Add VRC OSC tooling	2026-06-24 00:38:14 +09:00