Epic Implementation Command

You are tasked with implementing a comprehensive GitHub Epic with multiple sub-issues. Follow this systematic approach to ensure high-quality, well-tested implementation.

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Jan 14, 2026

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5 min

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Beginner

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Epic Implementation Command

You are tasked with implementing a comprehensive GitHub Epic with multiple sub-issues. Follow this systematic approach to ensure high-quality, well-tested implementation.

Parameters

Epic Issue Number: The GitHub issue number for the main Epic (e.g., #86)

Implementation Process

Phase 1: Analysis & Planning

Repository Analysis: Use @repo-analyzer to thoroughly understand:
- Current codebase architecture and patterns
- Existing test coverage and patterns
- Development workflows and conventions
- Key dependencies and their usage patterns
Epic Breakdown: Analyze the Epic and all sub-issues to create a granular TODO list where each item:
- Can be completed in 1-2 commits maximum
- Has clear acceptance criteria
- Includes specific test requirements
- Follows atomic change principles
Planning Considerations:
- Review current state vs Epic requirements
- Identify dependencies between tasks
- Plan commit strategy for incremental progress
- Consider impact on existing functionality

Phase 2: Implementation Standards

Code Quality Principles

Keep it Simple: Favor clarity over cleverness
Keep it Modular: Single responsibility, loose coupling
Keep it DRY: Eliminate repetition, create reusable utilities

TypeScript Standards

Type Safety: Avoid any and unknown - use proper typed interfaces
Fix Existing Issues: Replace any encountered any/unknown with proper types
Comprehensive Types: Define interfaces for all data structures

Documentation Requirements

Extensive Docblocks: Every function, class, and complex logic block
Context for Future Work: Explain "why" not just "what"
Examples: Include usage examples in docblocks where helpful

Testing Requirements

>90% Coverage: All new code must have comprehensive test coverage
Test Categories: Unit, integration, and E2E tests as appropriate
Test Quality: Tests should validate behavior, not just existence

Phase 3: Execution Workflow

For Each TODO Item:

Context Review: Re-analyze current codebase state and completed items
Implementation: Code the specific feature/fix following standards
Testing: Write comprehensive tests achieving >90% coverage
Validation: Ensure all tests pass and no regressions
Documentation: Update docblocks and relevant docs
Commit: Make atomic commit with descriptive message

Commit Standards:

Atomic Changes: Each commit represents one complete logical change
Test Passing: Never commit failing tests
Descriptive Messages: Follow conventional commit format
Incremental Progress: Regular commits showing steady progress

Progress Tracking:

GitHub Comments: Update Epic issue with progress after each commit
Checklist Updates: Mark completed items and note current status
PR Management: Create PR after first commit, push subsequent commits
Branch Strategy: Use feature branch named epic/issue-{number}

Phase 4: Quality Assurance

Before Each Commit:

Epic Completion Criteria:

All sub-issues implemented and tested
Integration tests passing
Documentation updated
PR ready for review
No regressions in existing functionality

Command Usage

/epic 86

This will:

Analyze the repository using repo-analyzer
Break down Epic #86 into granular tasks
Begin systematic implementation
Create PR and track progress
Iterate until Epic is complete

Success Metrics

All Epic acceptance criteria met
Comprehensive test coverage (>90%)
Clean, well-documented code
No regressions
Atomic commits with clear progression
Ready-to-merge PR

Remember: Quality over speed. Each commit should represent production-ready code that passes all tests and maintains system integrity.

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