diff --git a/CLAUDE.md b/CLAUDE.md
index 904f26f0..8472efcf 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -10,6 +10,61 @@
 2. **memory/ ディレクトリを確認する** — `C:\Users\maita\.claude\projects\c--Users-maita-posimai-project\memory\MEMORY.md` にプロジェクト固有の記憶がある
 3. **`posimai-dashboard/src/data/projects.json` を確認する** — 全アプリの一覧・ステータス・技術スタックがここにある
 
+---
+
+## ディザスタリカバリ（PC 完全消失時の復元手順）
+
+### バックアップリポジトリ
+
+| リポジトリ | Gitea（ローカル） | GitHub（クラウド） | 内容 |
+|-----------|-----------------|-----------------|------|
+| `posimai-root` | `http://100.76.7.3:3000/mai/posimai-root` | `https://github.com/posimai/posimai-root` (private) | CLAUDE.md / _template / server.js / scripts / deploy-server.sh / claude-settings.json |
+| `claude-memory` | `http://100.76.7.3:3000/mai/claude-memory` | `https://github.com/posimai/claude-memory` (private) | ~/.claude/memory 以下の全記憶ファイル |
+
+### 新マシンでの復元手順
+
+```bash
+# 1. GitHub CLI 認証
+gh auth login
+
+# 2. posimai-root を clone（CLAUDE.md・設定類を復元）
+git clone https://github.com/posimai/posimai-root.git "C:/Users/maita/posimai-project"
+cd "C:/Users/maita/posimai-project"
+git remote add gitea http://100.76.7.3:3000/mai/posimai-root.git
+
+# 3. Claude Code settings を復元
+cp "C:/Users/maita/posimai-project/claude-settings.json" "C:/Users/maita/.claude/settings.json"
+
+# 4. claude-memory を clone（AI 記憶を復元）
+git clone https://github.com/posimai/claude-memory.git "C:/Users/maita/.claude/projects/c--Users-maita-posimai-project/memory"
+cd "C:/Users/maita/.claude/projects/c--Users-maita-posimai-project/memory"
+git remote add gitea http://100.76.7.3:3000/mai/claude-memory.git
+
+# 5. 各アプリを必要に応じて clone
+# git clone https://github.com/posimai/[app-name].git "C:/Users/maita/posimai-project/[app-name]"
+# cd [app-name] && git remote add gitea http://100.76.7.3:3000/mai/[app-name].git
+```
+
+### posimai-root の更新方法（CLAUDE.md・server.js 等を変更した後）
+
+```bash
+cd C:/Users/maita/posimai-project
+git add CLAUDE.md claude-settings.json _template/ deploy-server.sh scripts/ server.js
+git commit -m "chore: update ..."
+git push gitea main && git push github main
+```
+
+### claude-memory の更新方法（AI が記憶を更新した後）
+
+```bash
+cd "C:/Users/maita/.claude/projects/c--Users-maita-posimai-project/memory"
+git add .
+git commit -m "chore: update memory"
+git push gitea main && git push github main
+```
+
+---
+
 ### AI が絶対に守るべきルール（違反時は即修正）
 
 | 禁止事項 | 理由 |
diff --git a/claude-settings.json b/claude-settings.json
new file mode 100644
index 00000000..fd6a3829
--- /dev/null
+++ b/claude-settings.json
@@ -0,0 +1,63 @@
+{
+  "permissions": {
+    "defaultMode": "acceptEdits",
+    "allow": [
+      "Bash(*)",
+      "Read",
+      "Glob",
+      "Grep",
+      "WebSearch",
+      "WebFetch",
+      "Bash(git *)",
+      "Bash(npm *)",
+      "Bash(npx *)",
+      "Bash(node *)",
+      "Bash(python3 *)",
+      "Bash(flutter *)",
+      "Bash(vercel *)",
+      "Bash(gh *)",
+      "Bash(curl *)",
+      "Bash(scp *)",
+      "Bash(ssh *)",
+      "Bash(ls*)",
+      "Bash(find *)",
+      "Bash(mkdir *)",
+      "Bash(mv *)",
+      "Bash(cp *)",
+      "Bash(rm -f *)",
+      "Bash(rm -r *)",
+      "Bash(chmod *)",
+      "Bash(cat *)",
+      "Bash(grep *)",
+      "Bash(head *)",
+      "Bash(tail *)",
+      "Bash(sed *)",
+      "Bash(awk *)",
+      "Bash(echo *)",
+      "Bash(printf *)",
+      "Bash(wc *)",
+      "Bash(xargs *)",
+      "Bash(unzip *)",
+      "Bash(bash *)",
+      "Bash(keytool *)",
+      "Bash(yes)",
+      "Bash(for *)",
+      "Bash(do *)",
+      "Bash(done*)"
+    ],
+    "deny": [
+      "Bash(rm -rf *)",
+      "Bash(git reset --hard *)",
+      "Bash(git push --force *)",
+      "Bash(git clean *)",
+      "Bash(sudo *)"
+    ],
+    "additionalDirectories": [
+      "c:\\Users\\maita\\posimai-project\\_template",
+      "c:\\Users\\maita\\posimai-project\\posimai-analytics\\src\\app\\(galaxy)",
+      "c:\\Users\\maita\\.claude\\projects\\c--Users-maita-posimai-project\\memory",
+      "c:\\Users\\maita\\posimai-project",
+      "/tmp"
+    ]
+  }
+}