نظام الخطافات

Event (When)   →  Matcher (Which)     →  Handler (What)
PreToolUse        matcher: "Bash"        command: "check_safety.sh"

{
  "type": "command",
  "command": "npx prettier --write $FILEPATH"
}

{
  "type": "prompt",
  "prompt": "Remember: every database operation must use a transaction"
}

{
  "type": "subagent",
  "prompt": "Review the code that was just modified and check for security vulnerabilities"
}

{
  "hooks": {
    "EventName": [
      {
        "matcher": "tool name (optional, | separates several)",
        "hooks": [
          {
            "type": "command|prompt|subagent",
            "command": "..."
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "npx prettier --write $FILEPATH 2>/dev/null || true"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "echo $TOOL_INPUT | grep -qE 'rm -rf /|sudo rm|git push --force|DROP TABLE|DROP DATABASE' && echo 'dangerous command blocked' && exit 2 || exit 0"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Read|Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "echo $TOOL_INPUT | grep -qE '\\.env|\\.env\\.|credentials|secrets?\\.ya?ml|private.key' && echo 'access to a sensitive file blocked' && exit 2 || exit 0"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "Notification": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "osascript -e 'display notification \"$NOTIFICATION_MESSAGE\" with title \"Claude Code\"'"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "Notification": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "notify-send 'Claude Code' \"$NOTIFICATION_MESSAGE\""
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "curl -s -X POST https://hooks.slack.com/services/xxx/yyy/zzz -H 'Content-Type: application/json' -d '{\"text\": \"Claude Code task finished\"}'"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "npx eslint --fix $FILEPATH 2>/dev/null; npx prettier --write $FILEPATH 2>/dev/null; exit 0"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "echo \"$(date -u +%Y-%m-%dT%H:%M:%SZ) | session=$SESSION_ID | tool=$TOOL_NAME | file=$FILEPATH\" >> ~/.claude/audit.log"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "echo $FILEPATH | grep -qE '\\.(ts|tsx|js|jsx)$' && echo $FILEPATH | grep -qvE '\\.test\\.|\\.spec\\.' && npx vitest related $FILEPATH --run 2>/dev/null || exit 0"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "echo $FILEPATH | grep -qE 'migrations/|alembic/versions/' && echo 'editing an existing migration is not allowed, create a new one' && exit 2 || exit 0"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "SessionStart": [
      {
        "hooks": [
          {
            "type": "prompt",
            "prompt": "Important: this project is mid-way through a v3.0 rewrite. All new code must use React Server Components; the pages/ directory is no longer supported."
          }
        ]
      }
    ]
  }
}

# Create a policy file in the enterprise management directory
mkdir -p /etc/claude-code/managed-settings.d/

// /etc/claude-code/managed-settings.d/security.json
{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "/opt/claude-policy/check_command.sh"
          }
        ]
      }
    ],
    "PostToolUse": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "/opt/claude-policy/audit_log.sh"
          }
        ]
      }
    ]
  }
}

# Simulate the PreToolUse environment variables
FILEPATH="src/main.ts" TOOL_INPUT="rm -rf /" bash -c 'echo $TOOL_INPUT | grep -qE "rm -rf" && echo "blocked" && exit 2 || exit 0'