Agent skills

The shared domain model behind planning work: the Outcome Contract, the Scope Policy plug point, scope and unknown classifications…

Write implementation plans that a human can meaningfully review and approve, instead of goal-oriented task lists.

Apply when writing or editing PlantUML (.puml, .plantuml, .pu) files or when generating diagrams from text descriptions.

Add data visualization to a React Native or Expo app with @platform-blocks/charts.

Display data with the @platform-blocks/ui React Native library.

Show feedback and overlays with the @platform-blocks/ui React Native library.

Build forms with the @platform-blocks/ui React Native library.

Build screen layouts with the @platform-blocks/ui React Native library.

Build navigation with the @platform-blocks/ui React Native library.

Install and configure the @platform-blocks/ui React Native library in an Expo or React Native app.

Theme the @platform-blocks/ui React Native library.

Scaffolds production-grade Web platforms and admin dashboards from scratch using shadcn UI, Tailwind CSS v4, and modern registry workflows.

Draws the ownership line for an AI build.

Play chess against Chesster, the witty engine

Play, resume, inspect, or clear a terminal tic-tac-toe game with persistent user-scoped state and deterministic aggressive or defensive AI.

Log in once in a real browser, save the Playwright storage_state, then start every later run already signed in - no re-login, no committed…

Playwright MCP integration for full browser automation — navigate, click, type, screenshot, evaluate JS, handle dialogs, upload files…

Use when adding or extending real mobile-device coverage to a Playwright suite — touch/tap specs, Pixel or iPhone device descriptors…

Create maintainable and reusable Page Object Models (POMs) for Playwright tests.

Write a playwright test, make sure it runs, and is not flaky.

Inspect Playwright trace files from the command line — list actions, view requests, console, errors, snapshots and screenshots.