{
  "apiVersion": "rstack.dev/v1alpha1",
  "kind": "Task",
  "metadata": {
    "name": "004-implementation",
    "run_id": "2026-07-12-0900-governed-checkout-flow"
  },
  "spec": {
    "title": "Implementation",
    "description": "Build scoped, working code that follows the architecture and existing project conventions.",
    "domains": ["backend", "frontend", "data"],
    "acceptance_criteria": [
      "Required behavior is implemented without placeholder TODO stubs",
      "Files changed stay within scope"
    ],
    "stage_artifacts": [
      {
        "stage_id": "07-code",
        "artifact": "code_report.json",
        "path": ".rstack/runs/2026-07-12-0900-governed-checkout-flow/artifacts/stages/07-code/code_report.json"
      }
    ],
    "output_dir": ".rstack/runs/2026-07-12-0900-governed-checkout-flow/tasks/004-implementation",
    "pipeline_agents": ["agent.07-code"],
    "budget_envelope": {
      "currency": "USD",
      "estimated_ai_cost_usd": 4,
      "approval_required_above_usd": 25
    }
  },
  "status": {
    "phase": "PASS"
  }
}