# BRIEFING — 2026-06-28T23:42:13Z

## Mission
Analyze the codebase for the update_category_image feature request and propose changes.

## 🔒 My Identity
- Archetype: explorer
- Roles: Teamwork explorer
- Working directory: /home/ti/git/homaroma/.agents/teamwork_preview_explorer_m1_1
- Original parent: f0dc21e1-9715-45da-a5b2-12e1b082fdff
- Milestone: update_category_image analysis

## 🔒 Key Constraints
- Read-only investigation — do NOT implement
- Must analyze and propose code changes in handoff.md

## Current Parent
- Conversation ID: f0dc21e1-9715-45da-a5b2-12e1b082fdff
- Updated: 2026-06-28T23:42:13Z

## Investigation State
- **Explored paths**:
  - `apps/backend/prisma/schema.prisma`
  - `packages/types/index.ts`
  - `apps/backend/src/routes/categories.ts`
  - `apps/mcp-server/index.ts`
- **Key findings**:
  - Prisma schema already has a nullable `imageUrl` on the Category model.
  - TypeScript types package `packages/types/index.ts` already has the correct `Category` interface.
  - Implement a new PATCH endpoint at `/categories/:id/image` in Elysia.
  - Implement the `update_category_image` tool schema and handler in the MCP server.
- **Unexplored areas**: None.

## Key Decisions Made
- Exclude Prisma schema modifications or migrations because `Category.imageUrl` is already in place.
- Keep the MCP server schema clean and align with typebox's validation rules using Elysia schemas.

## Artifact Index
- /home/ti/git/homaroma/.agents/teamwork_preview_explorer_m1_1/handoff.md — Handoff report