# Handoff Report — Sentinel

## Observation
The category image update feature has been successfully implemented and verified across the backend and the MCP server.
- Modified: `apps/backend/src/routes/categories.ts` (added PATCH endpoint `/categories/:id/image`)
- Modified: `apps/mcp-server/index.ts` (added `update_category_image` tool schema & handler)
- Added tests:
  - `apps/backend/test_category_image.ts`
  - `apps/mcp-server/test_mcp_category_image.ts`

## Logic Chain
- Adding the dedicated `PATCH /categories/:id/image` endpoint provides a granular API for image updates without exposing generic category updates.
- Registering the `update_category_image` tool in the MCP server exposes the functionality to AI/client agents via standard JSON-RPC.
- The Victory Auditor verified the timeline, checked for hardcoding/facades, and executed independent tests which all passed.

## Caveats
- No migrations were necessary since the category table schema in Prisma already contained the optional `imageUrl` field.
- Endpoints do not enforce fine-grained admin roles yet, which is consistent with other pre-existing categories routes.

## Conclusion
- Verdict: **VICTORY CONFIRMED**
- Project Phase: **Complete**

## Verification Method
- Independent programmatic execution of integration tests verifying correct category image updates and nulling.
- Verification of clean compilation across the monorepo.