{
  "id": "core-05-tool-execution-failed",
  "title": "Tool that raises returns execution_failed",
  "category": "core",
  "version": "aicc/0.1",
  "description": "A tool implementation that throws must be caught by the bridge and surfaced as error code execution_failed, not crash the session.",
  "steps": [
    {
      "send": {
        "type": "tool_call",
        "tool": "boom",
        "input": {}
      }
    },
    {
      "expect": {
        "type": "tool_result",
        "ok": false,
        "call_id_echo": true,
        "error": {
          "code": "execution_failed",
          "retryable": false
        }
      }
    }
  ]
}