Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright…
Backend API testing with pytest, httpx, and FastAPI TestClient. Covers endpoint verification, contract testing, mock patterns, and error scenario validation. Use when QE needs to test REST APIs, verify response schemas, or mock external services.
Find and play audiobooks / stories from the local library. Use when the user asks to read a story, play an audiobook, or continue from a specific chapter. List available titles first so you can match the user's request to a real entry. Output must contain a [[[READLOCAL]]] or [[[READSTORY]]] tag.
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Build, debug, and optimize Claude API / Anthropic SDK apps. Apps built with this skill should include prompt caching. Also handles migrating existing Claude API code between Claude model versions (4.5 → 4.6, 4.6 → 4.7, retired-model replacements). TRIGGER when: code imports anthropic/@anthropic-ai/sdk; user asks for…
Crawl and download stories from ANY website into the local library — site-agnostic, language-agnostic. Use when the user wants to add a new story, download from the web, or check crawl progress. Flow: detect structure → build recipe → verify 3 chapters → full crawl (worker enumerates).
Manage scheduled jobs (cron). Use when the user wants to create, edit, or delete a reminder, recurring schedule, or automated agent task (agentturn). MUST call getcurrenttime before creating a one-shot job so the absolute date/time is accurate.
Systematic debugging framework. Use when a developer agent needs to find the root cause of a bug, debug performance issues, or analyse a production failure.
Guides task delegation to specialized agents and spawn tools. Determines when to self-handle vs delegate, selects appropriate MCP servers and skills for spawned agents. Use when receiving research tasks, web access needs, or complex multi-step requests.
Developer workflow covering terminal execution, TDD cycle, code review, and git. Use when Dev needs to implement features, run tests, or submit code for review.
Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers.…
Financial and market data lookup. Use when user asks about stock prices, gold prices, crypto/coin prices, exchange rates, or market analysis. Uses serpapi with gl=vn, hl=vi.