GearBox/.planning/phases/16-multi-user-data-model/16-03-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
16-multi-user-data-model	03	api	hono mcp userId multi-user routes middleware	phase provides 16-01 Schema with userId columns, auth middleware setting c.set('userId') phase provides 16-02 Service functions accepting userId as second parameter	All route handlers extract userId from context and pass to services Settings routes use composite PK [userId, key] for per-user settings MCP server creation receives userId, all tool registrations pass userId MCP auth middleware resolves userId from API key and Bearer token	16-04 tests e2e	added patterns userId extraction pattern: const userId = c.get('userId')! MCP session stores userId alongside transport	created modified src/server/routes/items.ts src/server/routes/categories.ts src/server/routes/threads.ts src/server/routes/setups.ts src/server/routes/settings.ts src/server/routes/totals.ts src/server/routes/auth.ts src/server/mcp/index.ts src/server/mcp/tools/items.ts src/server/mcp/tools/categories.ts src/server/mcp/tools/threads.ts src/server/mcp/tools/setups.ts src/server/mcp/resources/collection.ts	Used non-null assertion (!) on c.get('userId') since requireAuth middleware guarantees it Stored userId alongside transport in MCP session map for session reuse Images route left unchanged -- image uploads have no user-scoped DB operations	Route handler pattern: const userId = c.get('userId')! after const db = c.get('db') MCP tool registration pattern: registerXTools(db, userId) with userId closure Settings composite key: [settings.userId, settings.key] for onConflictDoUpdate target	MULTI-02 MULTI-05 MULTI-06	6min	2026-04-05

Phase 16 Plan 03: Route and MCP userId Wiring Summary

Complete userId propagation chain from auth middleware through routes and MCP tools to service layer

Performance

• Duration: 6 min
• Started: 2026-04-05T08:46:34Z
• Completed: 2026-04-05T08:52:52Z
• Tasks: 2
• Files modified: 13

Accomplishments

• All 36 route handler calls now extract userId from Hono context and pass to service functions
• Settings routes use composite primary key [userId, key] for per-user settings isolation
• MCP server creation receives userId, all 4 tool registration functions and collection summary pass userId
• MCP auth middleware resolves userId from both API key and Bearer token authentication

Task Commits

Each task was committed atomically:

1. Task 1: Update all route handlers to extract and pass userId - e780022 (feat)
2. Task 2: Update MCP server and tool registrations with userId - d4bf4f5 (feat)

Files Created/Modified

• src/server/routes/items.ts - Added userId extraction to all 8 handlers (CRUD + export/import/duplicate)
• src/server/routes/categories.ts - Added userId extraction to all 4 handlers
• src/server/routes/threads.ts - Added userId extraction to all 10 handlers (threads + candidates + reorder + resolve)
• src/server/routes/setups.ts - Added userId extraction to all 8 handlers (CRUD + items sync/classification/remove)
• src/server/routes/settings.ts - Added userId with composite key [userId, key] for reads and upserts
• src/server/routes/totals.ts - Added userId extraction to totals handler
• src/server/routes/auth.ts - Added userId extraction to API key management handlers
• src/server/mcp/index.ts - Updated createMcpServer(db, userId), MCP auth resolves userId, session map stores userId
• src/server/mcp/tools/items.ts - registerItemTools(db, userId) passes userId to all service calls
• src/server/mcp/tools/categories.ts - registerCategoryTools(db, userId) passes userId to all service calls
• src/server/mcp/tools/threads.ts - registerThreadTools(db, userId) passes userId to all service calls
• src/server/mcp/tools/setups.ts - registerSetupTools(db, userId) passes userId to all service calls
• src/server/mcp/resources/collection.ts - getCollectionSummary(db, userId) passes userId to all queries

Decisions Made

• Used non-null assertion (!) on c.get("userId") since requireAuth middleware guarantees userId is set for all data routes
• Stored userId alongside transport in MCP session map to support session reuse without re-creating MCP server
• Left images route unchanged since image upload/fetch operations have no user-scoped database queries

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Complete userId propagation chain is in place: middleware -> routes/MCP -> services -> database
• Ready for Plan 04 (test updates) to verify the multi-user data isolation

Self-Check: PASSED

All files verified present, all commits verified in history.

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Phase: 16-multi-user-data-model Completed: 2026-04-05