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Persistent browser automation CLI supporting headless Chromium, visible Chrome, real Chrome profiles, and cloud browsers.

Build LLM-powered apps with the Anthropic Claude API or SDK across Python, TypeScript, Java, Go, Ruby, C#, and PHP.

Design engineering principles for polished UI details: concentric border radius, interruptible animations, shadows, and font smoothing.

Creates optimized animated GIFs for Slack emoji (128x128) or messages (480x480) using Python PIL with polished drawing primitives.

Post articles and image-text content to WeChat Official Account via API or Chrome CDP, with markdown-to-WeChat HTML conversion.

Official Expo team skill for building native UI in Expo apps, fine-tuned for Opus models and usable with Claude Code or Cursor.

Manage Google Tasks lists and tasks — create, list, move, patch, and delete — via the gws CLI's Tasks API wrapper.

Interact with a running Obsidian vault via CLI to read, create, search notes, manage tasks/properties, and develop plugins.

Blank template for creating new Claude skills, demonstrating the SKILL.md structure and anthropics/skills repo conventions.

Value investing analysis tool for Chinese A-share stocks with screening, financial analysis, industry comparison, and DCF valuation.

Create and edit Obsidian Flavored Markdown with wikilinks, embeds, callouts, frontmatter properties, and block IDs.

Watch for new Gmail messages and stream them as NDJSON via Google Pub/Sub integration using the gws CLI.