fix— agent skill

Fix the bug: $ARGUMENTS

Workflow

0. Check Tracking + Memory

• Check auto-memory for prior lessons matching this bug type
• Read ISSUES.md — find the relevant tracked issue by ID or description
• If the issue isn't tracked yet, add it to ISSUES.md first (assign next ISS-NNN ID)
• Update issue status to IN PROGRESS

1. Verify the Issue Exists

• Read the code at the reported location
• Confirm the bug is real, not a false alarm
• If already fixed or no longer applies: update ISSUES.md status to FIXED and stop

2. Root-Cause Analysis

1. Read the code — understand what it does, not what you think it does
2. Trace the data flow — for tool issues: schema → handler → endpoint → request → response
3. Never stop at the first failure — ask "why did THIS fail?" and trace backward
4. Check Known Patterns & Pitfalls in CLAUDE.md — is this a known pattern?

3. Implement the Fix

• Fix the root cause — not the symptom
• Minimal change — don't refactor surrounding code
• Follow the project's conventions (CLAUDE.md)
• If the fix changes tool behavior or params, note what docs need updating

4. Test

1. Can an existing test be updated to cover the fix? Update it
2. Does the fix change observable behavior no test covers? Add a regression test
3. The test must fail before the fix and pass after — verify this mentally or actually

5. Verify

Run the quality gate immediately after the fix:

npm run typecheck && npm run lint && npm run test -- --passWithNoTests

All must pass. git diff — confirm only intentional changes.

6. Document

This step is not optional. The fix is incomplete until:

1. ISSUES.md is updated with:

• Status: FIXED with date
• Root cause (file:line — one sentence)
• Fix description
• Files changed
• Tests added/updated

1. docs/TOOLS.md updated if the fix changes tool behavior
2. CLAUDE.md Known Patterns & Pitfalls updated if the pattern is generalizable
3. Auto-memory lesson written if anything went wrong during the fix process

Output

Issue:         ISS-NNN — [title]
Severity:      [level]
Root Cause:    [file:line — one sentence]
Status:        FIXED
Files changed: [list]
Tests:         [added N / updated N / none needed]
Docs updated:  [list or "none"]

Rules

• Always update ISSUES.md — fixes without tracking are invisible
• Fix the root cause, not the symptom
• Don't refactor surrounding code during a bug fix
• DO NOT commit automatically — wait for explicit user approval