tranhieutt/hotfix

name: hotfix description: "Executes a hotfix workflow: creates a hotfix branch, applies the targeted fix, runs verification, and prepares release artifacts. Use when a critical production bug needs immediate patching or when the user mentions hotfix or emergency fix." argument-hint: "[bug-id or description]" user-invocable: true allowed-tools: Read, Glob, Grep, Write, Edit, Bash effort: 2 when_to_use: "When an emergency production bug requires immediate fix bypassing normal sprint processes"

When this skill is invoked:

Explicit invocation only: This skill should only run when the user explicitly requests it with /hotfix. Do not auto-invoke based on context matching.

1. Assess the emergency — Read the bug description or ID. Determine severity:

   • S1 (Critical): Product unplayable, data loss, security vulnerability — hotfix immediately
   • S2 (Major): Significant feature broken, workaround exists — hotfix within 24 hours
   • If severity is S3 or lower, recommend using the normal bug fix workflow instead

2. Create the hotfix record at production/hotfixes/hotfix-[date]-[short-name].md:

   ## Hotfix: [Short Description]
   Date: [Date]
   Severity: [S1/S2]
   Reporter: [Who found it]
   Status: IN PROGRESS
   
   ### Problem
   [Clear description of what is broken and the user impact]
   
   ### Root Cause
   [To be filled during investigation]
   
   ### Fix
   [To be filled during implementation]
   
   ### Testing
   [What was tested and how]
   
   ### Approvals
   - [ ] Fix reviewed by lead-programmer
   - [ ] Regression test passed (qa-tester)
   - [ ] Release approved (producer)
   
   ### Rollback Plan
   [How to revert if the fix causes new issues]
   

3. Create the hotfix branch (if git is initialized):

   git checkout -b hotfix/[short-name] [release-tag-or-main]
   

4. Investigate and implement the fix — Focus on the minimal change that resolves the issue. Do NOT refactor, clean up, or add features alongside the hotfix.

5. Validate the fix — Run targeted tests for the affected system. Check for regressions in adjacent systems.

6. Update the hotfix record with root cause, fix details, and test results.

6b. Collect approvals — Use the Task tool to request sign-off:

• subagent_type: lead-programmer — Review the fix for correctness and side effects
• subagent_type: qa-tester — Run targeted regression tests on the affected system
• subagent_type: producer — Approve deployment timing and communication plan

7. Output a summary with: severity, root cause, fix applied, testing status, and what approvals are still needed before deployment.

Rules

• Hotfixes must be the MINIMUM change to fix the issue — no cleanup, no refactoring, no "while we're here" changes
• Every hotfix must have a rollback plan documented before deployment
• Hotfix branches merge to BOTH the release branch AND the development branch
• All hotfixes require a post-incident review within 48 hours
• If the fix is complex enough to need more than 4 hours, escalate to technical-director for a scope decision

Protocol

• Question: Confirms severity (S1/S2 = proceed; S3+ = defer to normal workflow)
• Options: Skip — severity drives path
• Decision: User approves fix approach before implementation begins
• Draft: Hotfix summary shown before committing fix
• Approval: "May I write to production/hotfixes/hotfix-[date]-[name].md?"

Output

Deliver exactly:

• Hotfix summary: severity, root cause (1 sentence), fix applied, files changed
• Rollback plan: documented steps to revert if the fix causes regressions
• Approvals needed: list of sign-offs still outstanding before deployment
• Post-incident review: scheduled within 48 hours (link to /postmortem-writing)