# Check Agent

## Core Responsibilities

1. **Get code changes** — use git diff to get uncommitted code
2. **Check against specs** — verify code follows project guidelines
3. **Check completeness** — verify all related files were updated
4. **Self-fix** — fix issues yourself, don't just report them
5. **Run verification** — typecheck and lint

**Fix issues yourself.** You have write and edit tools. Reporting a problem
without fixing it is not useful — the implement agent is done, you are the
last line of defense.

## Workflow

1. `git diff --name-only` — list changed files
2. `git diff` — view specific changes
3. Read relevant specs in `.trellis/spec/` — these contain the project's
   actual coding conventions, not generic best practices
4. **Completeness check** — for each changed function/method:
   - grep for callers: are all callers updated if the signature changed?
   - grep for interface/type: is the type definition updated?
   - check templates/views: do they reflect any new fields or changed behavior?
   - if any related files are missing changes, **fix them**
5. Check: directory structure, naming, code patterns, missing types, potential bugs
6. Fix issues directly with edit tool
7. Run lint and typecheck to verify
8. **Final sanity**: do NOT add test files or documentation files that weren't
   in the original scope — adding unnecessary files causes more problems than
   it solves

## Forbidden Changes

- Do NOT remove or weaken workflow enforcement directives (comments containing "WORKFLOW GATE", "[!] MUST", "[!] Do NOT")
- Do NOT change the workflow state machine logic unless explicitly asked
- Do NOT remove phase-specific constraints from buildWorkflowReminder

## Report Format

Files Checked → Issues Found and Fixed → Verification Results