patina

Canonical reference for all contribution artifact schemas, templates, folder naming conventions, file format rules, and workflow patterns (progressive disclosure, two-gate system, constraint discovery, routing) used across dev-strategy workflow skills.

Enables structured contributions to dev-strategy implementation plans with proper documentation and knowledge transfer. Use when you need to "contribute to dev-strategy", "implement this phase", "review the code", "audit the implementation", "add to the dev plan", or make specialized contributions (testing, auditing, documenting) to existing dev-strategy roadmaps. Generates decision logs and context handoffs with mandatory documentation.

Creates sufficient implementation plans for complex coding projects by analyzing your codebase, gathering constraints, and proposing execution strategies. Use when you need to "plan how to build", "create implementation roadmap", "break down this feature", "how should I approach building", or structure multi-phase development, refactoring, or architectural changes. Produces code context, behavioral specs, decision logs, and implementation roadmaps.

Enables collaborative design contributions to dev-strategy implementation plans through human-in-the-loop sessions. Use when roadmap phases have "Design" objectives, you need to "design the [component]", "figure out the [approach]", "determine the [architecture]", or refinement before implementation. Works with `.plans/plan-[FEATURE-NAME]/` directories only. Produces lean design docs (< 100 lines) through interactive exploration with ruthless focus on simplicity.

Reference guide for design philosophy applied across all dev-strategy workflow skills. Use when you need to understand YAGNI, Last Responsible Moment, Kent Beck's 4 Simple Design Rules, Sufficient Design, and Just-In-Time Architecture principles. Provides context for planning, design, and implementation decisions.

Mandatory skill to use whenever you interact with any TUI built on the tui-harness/tui-elm/tui-design framework (diffviz-review-tui, patina-detect-tui, and future ELM-style TUIs in this workspace), whether to add code to it, test it, or plan a change

Harvests architectural decisions and writes lean Architecture Decision Records to docs/adr/. Works in two modes — from a dev-strategy plan (reads decision-log.yaml files) or from a raw codebase (mines git history, comments, and docs). Use when a plan is done or when you want to capture past decisions from any codebase.

File a bug by adding a failing test case to the codebase marked as skipped with clear documentation. Use anytime the user reports a bug—create a test that reproduces it, mark it as skipped in the testing framework, and document the expected vs actual behavior.

Reference guide for three development execution strategies: TDD, Steel Thread, and Core-then-Integrate. Load this when you need strategy definitions, selection criteria, execution phases, test pyramid guidance, contribution folder naming patterns, or help choosing a strategy. Referenced during dev-strategy planning and dev-contribute execution.

Bootstrap a modern Python repository with production-grade DevX. Use when the user wants to create a new Python project from scratch and needs tooling setup (linting, type checking, testing, CI, optional CD). Triggers on requests like "bootstrap a Python repo", "set up a new Python project", "create a Python repository with good DevX", "scaffold a Python project".