Craft
A Claude Code plugin providing skills for software development best practices.
Getting Started
Install
/plugin marketplace add agentpatterns/craft
/plugin install crafter
After installation, skills are available as crafter:skill-name and activate automatically when relevant to your task.
Install from Local Clone
git clone https://github.com/agentpatterns/craft
/plugin marketplace add /path/to/craft
/plugin install crafter@craft
Update
/plugin marketplace update craft
Available Skills
The crafter plugin provides skills for software development, architecture, and diagramming:
| Skill | Command | Description |
|---|
| tdd | /tdd | Boundary-focused TDD workflow enforcing L3/L4 altitude testing and property-based tests |
| research | /research | Spawns parallel subagents to explore a codebase and produce a compact research artifact |
| draft | /draft | Consumes research artifact and produces a compact implementation plan with L3/L4 test specs |
| craft | /craft | Executes an implementation plan phase by phase with strict test-first discipline |
| refactor | /refactor | Refactoring process with test safety and incremental commits |
| pair | /pair | Guided pair-programming mode where Claude teaches rather than writes code |
| tidy | /tidy | Audit agent-facing documentation (CLAUDE.md, READMEs) for staleness and recommend fixes |
| reflect | /reflect | Post-session reflection that mines git history and artifacts to produce improvement proposals |
| diagram | /diagram | Creates architecture diagrams (C4 structural, dynamic flows, data flow) with subtype dispatch |
| scaffold | /scaffold | Scaffolds DDD projects from Gherkin feature files with language subtype dispatch |
| hexagonal-architecture | /hexagonal-architecture | Applies hexagonal (ports & adapters) architecture with domain-first design |
| adr | /adr | Guides writing minimal Architecture Decision Records |
RPI Methodology (Research → Draft → Craft)
The crafter plugin's core workflow for non-trivial features:
- Research (
/research) — Explore the codebase with parallel subagents, output a compact research artifact
- Draft (
/draft) — Consume the research artifact, produce a compact implementation plan with test specs
- Craft (
/craft) — Execute the plan phase by phase with strict RED → GREEN → REFACTOR discipline
Testing
Skills are validated by a three-layer pipeline. See tests/README.md for full methodology.
Layer 1 — Deterministic (local): Validates skill structure, frontmatter, triggers, and scenario schemas. No API calls.
bash tests/local/validate-skills.sh
Layer 2 — Promptfoo evals: Functional and behavioral evaluation using real Claude API calls. See tests/evals/README.md for setup and cost.
cd tests/evals && promptfoo eval
Layer 3 — Human review: Manual review for subjective quality and calibrating LLM-judge rubrics.
Contributing
See AGENTS.md for skill authoring guidelines, testing workflows, and the pre-ship checklist.
See docs/architecture.md for project structure and key concepts.
agentpatterns