---
phase: 07-mock-agent-test-harness
plan: 01
subsystem: testing
tags: [vitest, mock, agent, testing]

# Dependency graph
requires:
  - phase: 04-agent-lifecycle
    provides: AgentManager port interface
provides:
  - MockAgentManager adapter for test scenarios
  - MockAgentScenario configuration interface
affects: [08-e2e-scenario-tests, 09-extended-scenarios]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - Mock adapter pattern for test isolation

key-files:
  created:
    - src/agent/mock-manager.ts
    - src/agent/mock-manager.test.ts
  modified:
    - src/agent/index.ts

key-decisions:
  - "In-memory Map for agent tracking (no database needed for mock)"
  - "setTimeout for async completion even with delay=0 (consistent behavior)"
  - "Resume always completes successfully (simplifies test scenarios)"

patterns-established:
  - "Mock adapter implements full port interface for test swappability"
  - "Scenario override via setScenario() for per-agent behavior control"

# Metrics
duration: 2 min
completed: 2026-01-31
---

# Phase 7 Plan 01: MockAgentManager Adapter Summary

**MockAgentManager adapter implementing AgentManager port with configurable scenarios (success, crash, waiting_for_input) for E2E test isolation**

## Performance

- **Duration:** 2 min
- **Started:** 2026-01-31T07:40:58Z
- **Completed:** 2026-01-31T07:43:18Z
- **Tasks:** 2
- **Files modified:** 3

## Accomplishments

- MockAgentManager class implementing full AgentManager port interface
- MockAgentScenario interface for configuring agent behavior (outcome, delay, message, filesModified, question)
- setScenario() for per-agent scenario overrides
- All lifecycle events emitted: agent:spawned, agent:stopped, agent:crashed, agent:waiting, agent:resumed
- Comprehensive test suite with 28 test cases

## Task Commits

Each task was committed atomically:

1. **Task 1: Implement MockAgentManager adapter** - `6148af7` (feat)
2. **Task 2: Write comprehensive tests for MockAgentManager** - `e305375` (test)

## Files Created/Modified

- `src/agent/mock-manager.ts` - MockAgentManager adapter with scenario configuration
- `src/agent/mock-manager.test.ts` - 28 comprehensive tests covering all scenarios
- `src/agent/index.ts` - Export MockAgentManager and MockAgentScenario

## Decisions Made

- **In-memory Map for agent storage:** No database needed for mock adapter - tests don't need persistence
- **setTimeout for async completion:** Even with delay=0, completion happens via setTimeout for consistent async behavior in tests
- **Resume completes successfully by default:** After resume, agents complete with success to simplify test scenarios (can be overridden if needed)
- **clear() method for test cleanup:** Allows tests to reset state between runs

## 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 ready for use in E2E tests
- Can be injected in place of ClaudeAgentManager via dependency injection
- All scenario types proven working: success, crash, waiting_for_input
- Event emission verified for integration with dispatch/coordination testing

---
*Phase: 07-mock-agent-test-harness*
*Completed: 2026-01-31*
