Claude Skills by costiash

Generate a self-contained HTML changelog report showing recent documentation changes with interactive course generation buttons. Use this skill when the user asks for a docs changelog, documentation report, what changed recently, recent doc updates as a report, or runs `/docs --report`. Discovers changes via git history, categorizes them, summarizes what's new, and produces a stunning Obsidian & Amber themed HTML report where each entry has a "Create Course" button that copies the course comm...

Generate an interactive, self-contained HTML course on any Claude documentation topic. Use this skill when the user wants to create an interactive course, tutorial, or deep-dive walkthrough about a Claude feature, API concept, SDK pattern, or prompt engineering technique. Triggers on: "create a course about", "interactive tutorial for", "teach me about X interactively", "make a course on", "I'd like a course", "/docs --course", "/docs course", or when the user accepts the post-docs course pro...

Check the health and freshness of locally-stored Claude documentation. Use this skill when the user asks about documentation health, broken links, stale docs, freshness checks, or wants to validate that their local install is up-to-date and all URLs are reachable. Triggers on: "are my docs current", "check doc health", "validate documentation", "broken links", "stale docs".

Search and read locally-stored Claude documentation covering Claude Code CLI, Claude API (Messages, tool use, vision, streaming, batch), Agent SDK (Python and TypeScript), prompt engineering, and all Anthropic platform docs. Use this skill whenever the user asks about Claude Code features (hooks, MCP servers, skills, plugins, settings, permissions, keybindings, sub-agents), the Anthropic API or any of its SDKs (Python, TypeScript, Go, Java), the Agent SDK (sessions, hooks, custom tools, MCP),...

Router for the /docs command. Look up Claude documentation, ask plain-English questions, generate interactive courses and HTML changelog reports, check freshness, and sync the local cache. Dispatches to the claude-docs, claude-docs-validate, claude-docs-course, and claude-docs-changelog skills.

Parse data files of many formats — CSV/TSV, Excel (.xlsx), SQLite, JSONL/NDJSON, JSON, Markdown, plain text, and log files — and generate a stunning, self-contained, single-file HTML experience that visualizes the data: a Three.js animated hero, GSAP scroll animations, Tailwind styling, column-profiled data tables with search/sort/pagination, histograms and time-series charts, a markdown reading view with outline navigation, a filterable log viewer, and a collapsible tree explorer for arbitra...

Turn a data file (CSV/TSV, Excel, SQLite, JSON/JSONL, Markdown, text, logs) into a static, shareable infographic IMAGE — a rendered PNG plus its editable HTML source. Composes real infographics (hero stat, numbered story spine, pictograms, annotations, takeaway), not styled dashboards. Use this skill whenever the user asks for an "infographic", "poster image", "one-pager", "social card", "an image I can share", "a PNG of this data", or any static picture that tells the data's story — as oppos...