issue-fixer

name	issue-fixer
description	Implement GitHub issues collaboratively in open-source repositories with explicit approval gates, incremental delivery, atomic commits, and PR-ready validation. Use when working issue-by-issue with a human operator who decides scope and product direction.
argument-hint	Issue URL or description, target branch policy, and any non-negotiable constraints
user-invocable	true
disable-model-invocation	false

Open Source Issue Implementation

Outcome

Produce a production-ready issue implementation with:

• Shared understanding of scope and constraints
• Operator-approved technical approach before coding
• Incremental, reviewable changes
• Clean commit history
• Verified build/lint/type/tests status
• PR-ready summary linked to the issue

When to Use

Use this skill when:

• Working on a single GitHub issue in an open-source repository
• A human operator must validate decisions before implementation advances
• Scope control and traceable collaboration matter more than speed

Do not use this skill when:

• Doing broad discovery without a concrete issue
• Running large autonomous refactors without operator checkpoints

Collaboration Contract

At all times:

• Propose -> operator decides -> implement
• Do not make product decisions alone
• Do not expand scope without explicit approval
• Prefer clarity over speed
• Ask concise clarification questions when ambiguous

Required Inputs

Collect or confirm:

• Issue link or full issue text
• Target base branch and contribution conventions
• Definition of done (tests, lint/type, docs, screenshots, changelog)
• Constraints (backward compatibility, performance, API stability)

Procedure

1. Repository Sync

Run and report results:

1. git checkout main
2. git pull origin main
3. git fetch --all
4. git status

Validation checks:

• Working tree is clean (or operator explicitly approves proceeding with local changes)
• main is current
• No unresolved conflicts

If validation fails:

• Stop and ask the operator how to proceed before editing code

2. Issue Analysis (No Coding)

Deliver a concise analysis containing:

• 2-3 sentence summary
• Goal
• In-scope items
• Out-of-scope items
• Constraints
• Edge cases
• Open questions

Decision gate:

• Wait for operator validation before moving forward

3. Solution Proposal (No Coding)

Propose implementation details:

• Technical approach
• Impacted files/modules
• Data flow (if relevant)
• Risks and trade-offs
• Test strategy

Decision gate:

• Wait for explicit operator approval before coding

4. Branch Creation

Create a branch only after proposal approval:

1. Choose one prefix: feat/, fix/, refactor/, or chore/
2. Create branch: git checkout -b <prefix><short-description>

5. Implementation Loop (Incremental)

For each iteration:

1. Explain the next small step
2. Implement that step
3. Report what changed and why
4. Ask for operator validation

Suggested iteration order:

• Setup/refactor prerequisites
• Core functionality
• Edge cases and error handling
• Cleanup and documentation

Rules:

• Keep diffs focused and reviewable
• Avoid unrelated file churn
• Halt when requirements become ambiguous

6. Atomic Commits

Commit each logical unit separately using conventional commits, for example:

• feat: add overlay support
• fix: handle empty queue payload

Commit quality checks:

• One logical change per commit
• Message reflects actual change
• No debug artifacts

7. Validation Before PR

Run or confirm:

• Build succeeds
• Lint/type checks pass
• Tests pass (or clearly state missing tests and rationale)
• No debug code, temporary logging, or dead code remains

If checks fail:

• Fix failures or escalate with a concise blocker report

8. Sync Before Push

Before opening PR:

1. git fetch origin
2. git rebase origin/main

If conflicts appear:

• Resolve cleanly
• Re-run validation checks
• Summarize conflict decisions for operator visibility

9. Pull Request Preparation

Create a structured PR description containing:

• Problem summary
• Solution summary
• Key implementation details
• Validation evidence (build/lint/type/tests)
• Visuals/screenshots when relevant
• Linked issue

10. Post-Merge Cleanup

After merge confirmation:

1. git branch -d <branch>
2. git push origin --delete <branch>

Completion Criteria

This skill is complete when:

• Issue scope is implemented as approved
• Operator accepted each decision gate
• Validation checks are green (or exceptions documented and accepted)
• PR is ready or merged with cleanup completed

Message Format (Recommended)

For each operator-facing update, use:

1. Intent
2. Action taken
3. Result
4. Decision needed

Keep updates concise and structured.