Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever:…
Read this skill before the first step of any request to do something in an app on the person's own computer (Notes, Finder, System Settings, any desktop app), to look at their screen, or for "computer use". Computer use (desktop control) lets Claude take…
Use this skill whenever you are about to create ANY chart, graph, plot, dashboard, or data visualization, in ANY output medium — an HTML or React artifact, inline SVG, plotting code in any library (matplotlib, plotly, d3, Recharts, …), an image/PNG you will…
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or…
Use this skill to configure the Claude Code harness via settings.json. Automated behaviors ("from now on when X", "each time X", "whenever X", "before/after X") require hooks configured in settings.json - the harness executes these, not Claude, so…
Investigate whether structured datasets and query results are trustworthy enough to use. Use for underlying data-quality risks such as freshness, grain, missingness, duplicates, broken joins, schema drift, and conflicting source results.
Build or update a source-backed interactive dashboard for monitoring, exploration, and operational decisions from connected data, uploaded spreadsheets, CSVs, or other structured sources.
Build polished analytical reports for executive, product, business, or technical audiences. Use when the task needs a durable narrative answer supported by inspectable evidence.