{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "dd-flow/stage-start-response@2",
  "title": "Stage start response",
  "type": "object",
  "additionalProperties": false,
  "allOf": [
    {
      "if": {"properties": {"stage": {"const": "plan"}}, "required": ["stage"]},
      "then": {"required": ["plan_ref", "aspect_map_ref"]}
    }
  ],
  "required": ["schema_id", "run_id", "stage", "attempt_number", "stage_root", "prompt_path", "aliases", "resolved_context", "preflight", "worker_prompt_markdown", "next_command"],
  "properties": {
    "schema_id": {"const": "dd-flow/stage-start-response@2"},
    "run_id": {"type": "string", "minLength": 1},
    "stage": {"type": "string", "minLength": 1},
    "attempt_number": {"type": "integer", "minimum": 1},
    "stage_root": {"type": "string", "minLength": 1},
    "archive_path": {"type": ["string", "null"]},
    "prompt_path": {"type": "string", "minLength": 1},
    "aliases": {"type": "object", "additionalProperties": {"type": "string"}},
    "resolved_context": {"type": "object", "additionalProperties": true},
    "plan_ref": {"type": "string", "pattern": "^\\.memory-bank/protocol/[^/]+/plan\\.json$"},
    "aspect_map_ref": {"type": "string", "minLength": 1},
    "next_command": {"type": "string", "pattern": "^dd-flow stage finish "},
    "preflight": {"type": "object", "required": ["git", "compatibility", "permissions", "session_binding"], "additionalProperties": true},
    "worker_prompt_markdown": {"type": "string", "minLength": 1},
    "permission_probe": {"type": "object", "additionalProperties": true},
    "bootstrap": {"type": "boolean"}
  }
}