---
phase: 05-multi-model-discussions
plan: 02
subsystem: api
tags: [asyncio, telegram, ai-orchestration, parallel-queries]

# Dependency graph
requires:
  - phase: 05-multi-model-discussions/01
    provides: Discussion service CRUD operations
  - phase: 04-single-model-qa/02
    provides: AIClient.complete() and typing indicator pattern
provides:
  - orchestrator module with query_models_parallel()
  - /open command for parallel multi-model queries
  - Discussion/Round/Message persistence for open mode
affects: [05-03-discuss-mode, 05-04-mentions, 06-consensus]

# Tech tracking
tech-stack:
  added: []
  patterns: [asyncio.gather for parallel AI calls, per-model error handling]

key-files:
  created: [src/moai/core/orchestrator.py]
  modified: [src/moai/bot/handlers/discussion.py, src/moai/bot/handlers/__init__.py, src/moai/bot/handlers/commands.py]

key-decisions:
  - "asyncio.gather for parallel model queries with graceful per-model error handling"
  - "SYSTEM_PROMPT includes participant list and topic for roundtable context"

patterns-established:
  - "query_models_parallel returns dict[str, str] mapping model → response"
  - "Individual model failures don't block other model responses"

issues-created: []

# Metrics
duration: 3min
completed: 2026-01-16
---

# Phase 5 Plan 2: Open Mode Summary

**Parallel multi-model queries via /open command with asyncio.gather orchestration and database persistence**

## Performance

- **Duration:** 3 min
- **Started:** 2026-01-16T19:34:44Z
- **Completed:** 2026-01-16T19:37:57Z
- **Tasks:** 3
- **Files modified:** 4

## Accomplishments

- Created orchestrator module with SYSTEM_PROMPT and query_models_parallel() using asyncio.gather
- Implemented /open command that queries all project models simultaneously
- Persists Discussion/Round/Message records for each open query
- Updated HELP_TEXT with full Discussion section (commands for current and future plans)

## Task Commits

Each task was committed atomically:

1. **Task 1: Create orchestrator module** - `81b5bff` (feat)
2. **Task 2: Implement /open command handler** - `cef1898` (feat)
3. **Task 3: Update help text** - `7f46170` (docs)

**Plan metadata:** (pending)

## Files Created/Modified

- `src/moai/core/orchestrator.py` - SYSTEM_PROMPT constant and query_models_parallel() function
- `src/moai/bot/handlers/discussion.py` - Added open_command handler with DB persistence
- `src/moai/bot/handlers/__init__.py` - Registered /open CommandHandler
- `src/moai/bot/handlers/commands.py` - Added Discussion section to HELP_TEXT

## Decisions Made

- Used asyncio.gather for parallel execution with individual try/except for per-model error handling
- SYSTEM_PROMPT provides roundtable context with "Other participants: {models}" and "Topic: {project_name}"
- Error responses returned as "[Error: {e}]" strings to keep response dict complete

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

None

## Next Phase Readiness

- /open command complete (M4 milestone - Open mode parallel)
- Ready for 05-03-PLAN.md (discuss mode with sequential rounds)
- orchestrator.py ready for discuss mode additions

---
*Phase: 05-multi-model-discussions*
*Completed: 2026-01-16*