moai/.planning/phases/05-multi-model-discussions/05-01-SUMMARY.md
Mikkel Georgsen b2610cd90a docs(05-01): complete discussion service plan
Tasks completed: 2/2
- Create discussion service with CRUD operations
- Add round and message operations

SUMMARY: .planning/phases/05-multi-model-discussions/05-01-SUMMARY.md
2026-01-16 19:28:13 +00:00

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---
phase: 05-multi-model-discussions
plan: 01
subsystem: api
tags: [sqlalchemy, async, services, crud]
# Dependency graph
requires:
- phase: 04-single-model-qa
provides: AI client abstraction
- phase: 01-foundation
provides: SQLAlchemy models
provides:
- Discussion CRUD operations (create, get, list, complete)
- Round management (create, get current)
- Message management (create, list)
affects: [05-02 open mode, 05-03 discuss mode, 05-04 mentions, 06-consensus]
# Tech tracking
tech-stack:
added: []
patterns: [selectinload for eager loading, async context manager for sessions]
key-files:
created: [src/moai/core/services/discussion.py]
modified: [src/moai/core/services/__init__.py]
key-decisions:
- "selectinload for rounds→messages to prevent N+1 queries"
- "Eager load consensus relationship in get_discussion"
patterns-established:
- "Discussion service pattern matching project.py"
- "get_current_round returns highest round_number"
issues-created: []
# Metrics
duration: 2min
completed: 2026-01-16
---
# Phase 5 Plan 1: Discussion Service Summary
**Discussion service with 9 async CRUD operations for discussions, rounds, and messages using selectinload eager loading**
## Performance
- **Duration:** 2 min
- **Started:** 2026-01-16T19:24:14Z
- **Completed:** 2026-01-16T19:26:56Z
- **Tasks:** 2
- **Files modified:** 2
## Accomplishments
- Created discussion service following established service layer pattern
- Implemented 5 discussion operations: create, get (with eager loading), get_active, list, complete
- Added 4 round/message operations: create_round, get_current_round, create_message, get_round_messages
- Used selectinload for eager loading rounds→messages to avoid N+1 queries
## Task Commits
Each task was committed atomically:
1. **Task 1: Create discussion service with CRUD operations** - `3258c3a` (feat)
2. **Task 2: Add round and message operations** - `baf02bb` (feat)
## Files Created/Modified
- `src/moai/core/services/discussion.py` - Discussion, Round, Message CRUD operations (9 async functions)
- `src/moai/core/services/__init__.py` - Updated exports
## Decisions Made
- Used selectinload for eager loading rounds→messages→consensus to prevent N+1 queries
- get_discussion includes consensus in eager loading for future phase 6
- get_current_round orders by round_number desc with limit 1 for efficiency
## Deviations from Plan
None - plan executed exactly as written.
## Issues Encountered
None
## Next Phase Readiness
- Discussion service ready for /open and /discuss command handlers
- Round/message operations available for multi-model discussion flow
- Ready for 05-02-PLAN.md (open mode handler)
---
*Phase: 05-multi-model-discussions*
*Completed: 2026-01-16*