workflow

Find beautiful code abstractions and cross-cutting simplifications. Applies conceptual lenses (elimination, unification, inversion) to surface bold architectural ideas, then converges into an implement-ready design document.

Sweep a codebase for AI-accumulated cruft (dead code, stale comments, compatibility shims, defensive bloat, over-abstraction), triage findings by confidence tier, then orchestrate parallel cleanup agents with worktree isolation. Use when user says "clean cruft", "dead code", "unused code", "stale comments", or "AI leftovers".

Architectural principles (Ports & Adapters, Single Source of Truth, Generated Contracts). Auto-loads when designing new modules, defining interfaces between layers, discussing system architecture, drawing system boundaries, reviewing architectural decisions, or any time the design or implement skill is active.

Create a detailed design document with typed implementation units. Use when a feature spans multiple files or modules, when scope is unclear before coding, when the user provides a vision or roadmap and wants a plan before implementation, or when implementing would require too many upfront decisions to make inline. Skip if the task is small enough to implement directly.

Design a comprehensive end-to-end test suite for a project. Explores the codebase, understands user-facing behavior from docs and code, then designs two test sets: golden-path user journey tests and adversarial/failure-mode tests. Interactive — asks the user about expected failure behavior before finalizing. Use when starting e2e testing, expanding test coverage, or designing integration tests for a project.