{
  "apiVersion": "hub.example.com/v1alpha1",
  "kind": "ToolManifest",
  "metadata": {"name": "ProjectBrain Auto Executor Heartbeat", "slug": "projectbrain-autonomy-executor-heartbeat"},
  "spec": {
    "canonicalName": "projectbrain.autonomy.executor.heartbeat",
    "version": "1.0.0",
    "connectorType": "projectbrain",
    "description": "Record bounded operational presence for the scheduled autonomous executor without claiming work.",
    "riskClass": "R2",
    "readOnly": false,
    "idempotent": true,
    "inputSchema": {"type": "object", "required": ["instance_id", "status"], "properties": {"instance_id": {"type": "string", "minLength": 3, "maxLength": 120}, "run_id": {"type": "string", "minLength": 1, "maxLength": 160}, "status": {"type": "string", "enum": ["idle", "working", "degraded"]}, "active_project_id": {"type": "string", "minLength": 1, "maxLength": 240}, "detail": {"type": "string", "minLength": 1, "maxLength": 1000}}, "additionalProperties": false},
    "outputSchema": {"type": "object"},
    "limits": {"timeoutMs": 30000, "maxOutputBytes": 65536, "maxItems": 1},
    "redactionProfile": "documents",
    "requiredScopes": ["project:{project}:write"]
  }
}