task.assigned → architect-agent (writes design.md)
  → task.designed → developer-agent (reads design, writes retry.go + client.go)
    → task.implemented → test-agent (reads code, writes retry_test.go with 5 cases)
      → task.tested → review-agent (reads all 4 files, writes REVIEW.md → APPROVE)
        → task.reviewed → qa-agent (verifies all artifacts, writes QA_REPORT.md → RELEASE APPROVED)
          → task.completed

Step 1: Creating shared workspace session
OK Session: session-b3aa6d89129c0360

Step 2: ARCHITECT-AGENT: designing retry middleware
OK   design.md written (987 bytes)
OK   Phase 1 complete → task.designed

Step 3: DEVELOPER-AGENT: implementing from design
OK   Read design.md — contract found: True
OK   retry.go written (2415 bytes)
OK   client.go written (435 bytes)
OK   Phase 2 complete → task.implemented

Step 4: TEST-AGENT: writing tests for implementation
OK   Read retry.go — RoundTrip: True, backoff: True
OK   retry_test.go written (3148 bytes, 5 test cases)
OK   Phase 3 complete → task.tested

Step 5: REVIEW-AGENT: reviewing all artifacts
OK   REVIEW.md written (1144 bytes, verdict=APPROVE)
OK   Phase 4 complete → task.reviewed

Step 6: QA-AGENT: final verification
OK   Workspace: 5 files, all expected present: True
OK   Review verdict: APPROVE
OK   QA_REPORT.md written (1178 bytes)
OK   Phase 5 complete → task.completed (RELEASE APPROVED)

OK Multi-Agent Pipeline PASSED — 14 invocations, 10 events