---
phase: 08.1-agent-output-schema
plan: 02
subsystem: testing
tags: [mock-manager, test-harness, discriminated-union, vitest]

# Dependency graph
requires:
  - phase: 08.1-01
    provides: [Agent output schema, PendingQuestion type, structured question data]
provides:
  - MockAgentManager with schema-aligned scenarios
  - TestHarness convenience methods for scenario setup
  - Updated E2E tests using new scenario format
affects: [phase-9-e2e-tests]

# Tech tracking
tech-stack:
  added: []
  patterns: [status-based-discriminated-union-for-mock-scenarios]

key-files:
  created: []
  modified: [src/agent/mock-manager.ts, src/test/harness.ts, src/agent/mock-manager.test.ts, src/test/e2e/edge-cases.test.ts, src/test/harness.test.ts]

key-decisions:
  - "Align MockAgentScenario with agent output schema (done/question/unrecoverable_error)"
  - "Add convenience helpers to TestHarness (setAgentDone, setAgentQuestion, setAgentError)"
  - "Add getPendingQuestion to TestHarness for question retrieval"

patterns-established:
  - "Mock scenarios use same discriminated union pattern as real agent output"
  - "TestHarness provides typed helpers for common scenario types"

# Metrics
duration: 4min
completed: 2026-01-31
---

# Phase 08.1 Plan 02: MockAgentManager Schema Alignment Summary

**MockAgentManager updated to use schema-aligned discriminated union scenarios (done/question/unrecoverable_error) with TestHarness convenience helpers**

## Performance

- **Duration:** 4 min
- **Started:** 2026-01-31T14:28:00Z
- **Completed:** 2026-01-31T14:32:00Z
- **Tasks:** 3
- **Files modified:** 5

## Accomplishments

- MockAgentManager scenarios now align with agent output schema (status-based discriminated union)
- TestHarness provides setAgentDone/setAgentQuestion/setAgentError convenience methods
- All existing E2E tests updated to use new scenario format
- Added tests for structured question data, getPendingQuestion, and resume clearing pending question

## Task Commits

Each task was committed atomically:

1. **Task 1: Update MockAgentManager to use schema-aligned scenarios** - `ead4614` (feat)
2. **Task 2: Update TestHarness setAgentScenario helper** - `8e38bd2` (feat)
3. **Task 3: Update MockAgentManager tests** - `565f9fd` (test)

## Files Created/Modified

- `src/agent/mock-manager.ts` - MockAgentScenario now uses status-based discriminated union
- `src/test/harness.ts` - Added convenience methods and getPendingQuestion
- `src/agent/mock-manager.test.ts` - Updated all scenarios to new format, added structured question tests
- `src/test/e2e/edge-cases.test.ts` - Updated crash/waiting scenarios to new format
- `src/test/harness.test.ts` - Updated crash scenario to new format

## Decisions Made

1. **Align with output schema** - MockAgentScenario uses same pattern as AgentOutput (done/question/unrecoverable_error)
2. **Convenience methods** - TestHarness provides typed helpers to reduce boilerplate in tests
3. **getPendingQuestion in harness** - Allows tests to verify question data without accessing agentManager directly

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

None.

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- MockAgentManager fully aligned with ClaudeAgentManager output schema
- TestHarness provides convenient scenario helpers for Phase 9 E2E tests
- All 367 tests pass

---
*Phase: 08.1-agent-output-schema*
*Completed: 2026-01-31*
