Best Claude Skills

Jesse Vincent's complete development methodology: TDD, brainstorming-before-coding, and git worktrees — all auto-triggering.

Garry Tan's 23-role Claude Code stack — CEO, designer, eng, QA, security, release, all as slash commands.

Anthropic's official skill for building MCP servers that connect language models to external APIs and services.

Playwright-driven browser testing: verify UI behavior, debug, and capture screenshots of local web apps.

Anthropic's official frontend-design skill — production-grade interfaces with distinctive, polished design.

Paul Bakaus's design framework — kills generic AI design, forces deliberate taste, motion, and polish.

Emil Kowalski's design engineering review — when to animate, what easing, how fast, with Before/After reviews.

Three sliders (variance, motion, density) that tune Claude's UI output. Stops the generic AI look.

Open, edit, and create Excel and CSV files with formulas, formatting, and data cleaning.

Create, edit, and format Word documents with tables, images, and tracked changes.

Create, edit, read, and extract content from PowerPoint presentations.

Read, merge, split, rotate, watermark, encrypt, and extract text from PDF files.

Vercel Labs' meta-skill — Claude searches the open skill ecosystem for existing solutions before improvising.

Anthropic's official tool for creating, editing, and benchmarking your own Claude skills.