Walkthrough: Add user authentication middleware¶
Step-by-step narration of the full pipeline run for issue #42.
1. Planner reads issue¶
Agent: Planner
Reads: Issue #42 (scenario.md)
Action: Classifies as standard complexity (3+ files, auth domain). Invokes subplanner.
2. Subplanner produces plan¶
Agent: Subplanner
Reads: Issue #42
Writes: plan.json
Actions: Produces plan with 5 ordered steps across 4 files (login.ts, middleware.ts, login.test.ts, middleware.test.ts). Maps AC1→login.test.ts, AC2/AC3→middleware.test.ts. Self-assessment: high confidence.
3. Worker implements¶
Agent: Worker
Reads: plan.json
Writes: worker-result.json, src/auth/login.ts, src/auth/middleware.ts, src/auth/login.test.ts, src/auth/middleware.test.ts
Actions: Implements all 4 files per plan. Status: completed.
4. Tester runs Phase 1 — FAIL¶
Agent: Tester
Reads: worker-result.json, source files
Writes: test-result-fail.json
Actions: Runs lint (PASS), typecheck (PASS), unit_tests (FAIL). Expired token test fails: middleware returns 200 instead of 401. Verdict: FAIL.
5. Planner routes to debugger¶
Agent: Planner
Reads: test-result-fail.json
Action: Sees FAIL verdict, routes to debugger.
6. Debugger diagnoses¶
Agent: Debugger
Reads: test-result-fail.json, src/auth/middleware.ts
Writes: debug-diagnosis.json
Actions: Parses test output, inspects middleware. Identifies off-by-one: expiry check uses > instead of correct logic. Root cause: line 15 in middleware.ts. Classification: fix_target. Provides fix instructions (change to decoded.exp <= now for rejection).
7. Planner re-dispatches worker¶
Agent: Planner
Reads: debug-diagnosis.json
Action: Re-dispatches worker with fix instructions.
8. Worker applies fix¶
Agent: Worker
Reads: debug-diagnosis.json, src/auth/middleware.ts
Writes: Updated worker-result.json, updated src/auth/middleware.ts
Actions: Fixes expiry comparison on line 15.
9. Tester runs again — PASS¶
Agent: Tester
Reads: Updated worker-result.json, source files
Writes: test-result-pass.json
Actions: Runs Phase 1. Lint PASS, typecheck PASS, unit_tests PASS. Verdict: PASS.
10. Reviewer reviews¶
Agent: Reviewer
Reads: plan.json, diff of changed files
Writes: review-result.json
Actions: Reviews diff against plan. 0 blockers, 0 concerns, 2 nits (JWT_SECRET env config, unused import). Verdict: PASS.
11. Git creates branch and PR¶
Agent: Git
Reads: review-result.json, changed files
Writes: git-result.json
Actions: Creates branch feature/issue-42-auth-middleware, commits with message feat(auth): add login endpoint and JWT middleware\n\nCloses #42, opens PR #87. CI status: pass.