---

name: gh-implement-issue description: "End-to-end implementation workflow for a GitHub issue from planning through PR creation. Use when starting work on an issue from scratch." category: github agent: implementation-specialist

Implement GitHub Issue

Complete workflow for implementing a GitHub issue from start to finish.

When to Use

• Starting work on a new issue
• Need structured workflow from branch to PR
• Want to follow best practices end-to-end
• Working on assigned GitHub issue

Quick Reference

Copy# 1. Fetch issue and create branch
gh issue view <issue>
git checkout -b <issue>-<description>

# 2. Implement with TDD
# - Write tests first
# - Implement code
# - Run tests: mojo test tests/

# 3. Quality checks
just pre-commit-all

# 4. Commit and PR
git add . && git commit -m "feat: description

Closes #<issue>"
git push -u origin <branch>
gh pr create --issue <issue>

Workflow

1. Read issue context: gh issue view <issue> --comments - understand requirements, prior context
2. Create branch: git checkout -b <issue>-<description>
3. Post start comment: Document approach on the issue
4. Write tests first: TDD approach - tests drive implementation
5. Implement code: Build functionality to pass tests
6. Quality check: Format code and run pre-commit
7. Commit: Create focused commit with issue reference
8. Push and PR: Create PR linked to issue
9. Post completion: Document summary on the issue
10. Monitor CI: Verify all checks pass

Branch Naming Convention

Format: <issue-number>-<description>

Examples:

• 42-add-tensor-ops
• 73-fix-memory-leak
• 105-update-docs

Commit Message Format

Follow conventional commits:

Copytype(scope): Brief description

Detailed explanation of changes.

Closes #<issue-number>

Types: feat, fix, docs, refactor, test, chore

Code Quality Checklist

Before creating PR:

• Issue requirements met
• Tests written and passing
• Code formatted (pixi run mojo format)
• Pre-commit hooks pass
• No warnings or unused variables
• Documentation updated
• Commit messages follow convention

Error Handling

Documentation Requirements

Post documentation directly to the GitHub issue:

Copy# Post implementation started
gh issue comment <issue> --body "$(cat <<'EOF'
## Implementation Started

**Branch**: `<branch-name>`

### Approach
[Brief description of implementation approach]

### Files to Modify
- `path/to/file1.mojo`
- `path/to/file2.mojo`
EOF
)"

# Post completion summary
gh issue comment <issue> --body "$(cat <<'EOF'
## Implementation Complete

**PR**: #<pr-number>

### Summary
[What was implemented]

### Verification
- [x] Tests pass
- [x] Pre-commit passes
EOF
)"

References

• See CLAUDE.md for complete development workflow
• See CLAUDE.md for Mojo syntax standards
• See CLAUDE.md for zero-warnings policy