nexus/.planning/milestones/v1.3-phases/23-brainstormer-flow/23-01-SUMMARY.md

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	requirements-completed	metrics
23-brainstormer-flow	01	api, chat-service	express drizzle chat handoff issue-creation system-messages	requires provides affects phase provides 23-00 messageType column in chat_messages, handoffSchema validator phase provides 21-chat-foundation chatService, chatRoutes, addMessage, getConversation addSystemMessage helper in chatService messageType support in addMessage POST /conversations/:id/handoff route POST /conversations/:id/status-update route server/src/services/chat.ts server/src/routes/chat.ts	added patterns addSystemMessage encapsulates system-role message insertion with typed messageType handoff route creates 3 artifacts atomically (handoff msg, issue, task_created msg) companyId resolved from conversation row — not passed in request body	created modified server/src/services/chat.ts server/src/routes/chat.ts	Import issueService from ../services/issues.js directly (not via index.js) — matches plan guidance and local instantiation pattern used in heartbeat.ts issueSvc instantiated inside chatRoutes(db) — option (a) from plan, simplest approach Handoff content uses arrow character (→) in system message; spec fields assembled into markdown description	AGENT-03 AGENT-06 AGENT-07 CHAT-09	duration completed_date tasks_completed files_changed 8 minutes 2026-04-01 2 2

Phase 23 Plan 01: Chat Service Extension — handoff + status-update Routes Summary

Extended chatService with addSystemMessage helper and messageType support, and added POST handoff and status-update routes that insert typed system messages and create issues from brainstormer specs.

Tasks Completed

Task	Name	Commit	Files
1	Extend chat service with messageType support and addSystemMessage	0a1b3dc0	server/src/services/chat.ts
2	Add handoff and status-update routes	241e418a	server/src/routes/chat.ts

Verification

• pnpm exec tsc --noEmit -p server/tsconfig.json passes for chat files (pre-existing plugin-sdk errors unrelated)
• pnpm vitest run — same failures as baseline (6 pre-existing, none new)
• All 5 acceptance criteria pass for both tasks

Deviations from Plan

None — plan executed exactly as written.

Known Stubs

None — both routes are fully implemented. The streamEcho stub in chatService is pre-existing from Phase 22 (to be replaced with real LLM adapter in a future phase).

Self-Check: PASSED