docs(07-02): complete test harness plan

Tasks completed: 3/3
- Create fixture helpers for database seeding
- Create test harness with full system wiring
- Write tests proving harness works

Phase 7 complete (2/2 plans).

SUMMARY: .planning/phases/07-mock-agent-test-harness/07-02-SUMMARY.md

.planning/ROADMAP.md

@@ -128,6 +128,7 @@ Plans:
 
 Plans:
 - [x] 07-01: MockAgentManager Adapter
+- [x] 07-02: Test Harness with Database Fixtures
 
 #### Phase 8: E2E Scenario Tests
 
@@ -163,7 +164,7 @@ Phases execute in numeric order: 1 → 1.1 → 2 → 3 → 4 → 5 → 6 → 7
 | 4. Agent Lifecycle | v1.0 | 4/4 | Complete | 2026-01-30 |
 | 5. Task Dispatch | v1.0 | 5/5 | Complete | 2026-01-30 |
 | 6. Coordination | v1.0 | 3/3 | Complete | 2026-01-30 |
-| 7. Mock Agent & Test Harness | v1.1 | 1/? | In progress | - |
+| 7. Mock Agent & Test Harness | v1.1 | 2/2 | Complete | 2026-01-31 |
 | 8. E2E Scenario Tests | v1.1 | 0/? | Not started | - |
 | 9. Extended Scenarios & CI | v1.1 | 0/? | Not started | - |
 

.planning/STATE.md

@@ -10,18 +10,18 @@ See: .planning/PROJECT.md (updated 2026-01-30)
 ## Current Position
 
 Phase: 7 of 9 (Mock Agent & Test Harness)
-Plan: 1 of ? in current phase
-Status: In progress
-Last activity: 2026-01-31 — Completed 07-01-PLAN.md
+Plan: 2 of 2 in current phase
+Status: Phase complete
+Last activity: 2026-01-31 — Completed 07-02-PLAN.md
 
-Progress: █░░░░░░░░░ 10%
+Progress: ██░░░░░░░░ 20%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 27
+- Total plans completed: 29
 - Average duration: 3 min
-- Total execution time: 84 min
+- Total execution time: 90 min
 
 **By Phase (v1.0):**
 
@@ -36,7 +36,7 @@ Progress: █░░░░░░░░░ 10%
 | 6 | 3/3 | 9 min | 3 min |
 
 **Recent Trend:**
-- Last 5 plans: 06-03 (3 min), 06-02 (4 min), 06-01 (2 min), 05-05 (4 min), 05-04 (4 min)
+- Last 5 plans: 07-02 (4 min), 07-01 (2 min), 06-03 (3 min), 06-02 (4 min), 06-01 (2 min)
 - Trend: Steady
 
 ## Accumulated Context
@@ -101,6 +101,9 @@ Recent decisions affecting current work:
 - 07-01: In-memory Map for mock agent storage (no database needed)
 - 07-01: setTimeout for async completion even with delay=0 (consistent behavior)
 - 07-01: Resume always completes successfully (simplifies test scenarios)
+- 07-02: DispatchManager requires pre-seeded idle agent before spawning new ones
+- 07-02: Fixtures use name-to-ID mapping for dependency resolution
+- 07-02: MockWorktreeManager allows custom merge results for conflict testing
 
 ### Pending Todos
 
@@ -120,5 +123,5 @@ None yet.
 ## Session Continuity
 
 Last session: 2026-01-31
-Stopped at: Completed 07-01-PLAN.md
+Stopped at: Completed 07-02-PLAN.md (Phase 7 complete)
 Resume file: None

.planning/phases/07-mock-agent-test-harness/07-02-SUMMARY.md

@@ -0,0 +1,110 @@
+---
+phase: 07-mock-agent-test-harness
+plan: 02
+subsystem: testing
+tags: [vitest, test-harness, fixtures, e2e]
+
+# Dependency graph
+requires:
+  - phase: 07-01
+    provides: MockAgentManager adapter
+provides:
+  - Test harness with full system wiring
+  - Database fixture helpers for seeding hierarchies
+  - MockWorktreeManager for git isolation
+  - CapturingEventBus for event verification
+affects: [08-e2e-scenario-tests, 09-extended-scenarios]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - Fixture-based test seeding with dependency resolution
+    - Event capturing wrapper for verification
+
+key-files:
+  created:
+    - src/test/fixtures.ts
+    - src/test/harness.ts
+    - src/test/harness.test.ts
+    - src/test/index.ts
+  modified: []
+
+key-decisions:
+  - "DispatchManager requires pre-seeded idle agent before spawning new ones"
+  - "Fixtures use name-to-ID mapping for dependency resolution"
+  - "MockWorktreeManager allows custom merge results for conflict testing"
+
+patterns-established:
+  - "TestHarness wires real managers with mock dependencies"
+  - "CapturingEventBus extends EventEmitterBus with event array capture"
+
+# Metrics
+duration: 4 min
+completed: 2026-01-31
+---
+
+# Phase 7 Plan 02: Test Harness with Database Fixtures Summary
+
+**Test harness wiring real DispatchManager and CoordinationManager with MockAgentManager and MockWorktreeManager, plus fixture helpers for seeding complete task hierarchies (initiative -> phase -> plan -> task with dependencies)**
+
+## Performance
+
+- **Duration:** 4 min
+- **Started:** 2026-01-31T07:45:28Z
+- **Completed:** 2026-01-31T07:49:43Z
+- **Tasks:** 3
+- **Files modified:** 4
+
+## Accomplishments
+
+- Fixture helpers for seeding complete task hierarchies with dependency resolution
+- TestHarness interface providing full system access and helper methods
+- createTestHarness() factory wiring real managers with mock dependencies
+- MockWorktreeManager with customizable merge results for conflict testing
+- CapturingEventBus for event verification in E2E tests
+- 19 comprehensive tests proving harness enables E2E scenarios
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Create fixture helpers for database seeding** - `ba1f7cc` (feat)
+2. **Task 2: Create test harness with full system wiring** - `4424a46` (feat)
+3. **Task 3: Write tests proving harness works** - `6cc9e7f` (test)
+
+## Files Created/Modified
+
+- `src/test/fixtures.ts` - Fixture interfaces and seedFixture() with SIMPLE/PARALLEL/COMPLEX convenience fixtures
+- `src/test/harness.ts` - TestHarness interface, createTestHarness(), MockWorktreeManager, CapturingEventBus
+- `src/test/harness.test.ts` - 19 tests covering fixture seeding, dispatch flow, event capture, E2E flows
+- `src/test/index.ts` - Public exports for test module
+
+## Decisions Made
+
+- **DispatchManager requires pre-seeded idle agent:** The existing DispatchManager checks for idle agents before spawning new ones. Tests must pre-seed an idle agent for dispatch to succeed.
+- **Fixtures use name-to-ID mapping:** Task dependencies are specified by name in fixtures, resolved to actual IDs after creation via SeededFixture maps.
+- **MockWorktreeManager allows custom merge results:** setMergeResult() enables testing conflict scenarios without real git operations.
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- Test harness ready for use in E2E scenario tests
+- Fixtures enable quick creation of complex task hierarchies
+- MockWorktreeManager supports both success and conflict scenarios
+- Full dispatch -> complete -> event verification flow proven working
+
+---
+*Phase: 07-mock-agent-test-harness*
+*Completed: 2026-01-31*