{
  "checked_on": "2026-07-24",
  "supported_hosts": {
    "claude-code": {
      "source": "https://code.claude.com/docs/en/hooks",
      "native_event": "SessionStart",
      "triggerify_event": "session-start",
      "capability": { "inject": true, "script": true, "block": false }
    },
    "pi": {
      "source": "https://github.com/badlogic/pi-mono/blob/main/packages/coding-agent/docs/extensions.md",
      "native_event": "before_agent_start",
      "triggerify_event": "session-start",
      "capability": { "inject": true, "script": true, "block": false },
      "note": "Inject via before_agent_start systemPrompt rewrite; script via runEvent side effects in csl-context-hooks extension. Block is not physically possible on Pi."
    }
  },
  "unsupported_hosts": {
    "cursor": {
      "source": "https://forum.cursor.com/t/cursor-app-hooks-bugs-of-additional-context/163990",
      "native_event": "sessionStart",
      "reason": "Cursor 3.7 still drops additional_context before it reaches the model."
    }
  }
}