Anthropic
The best AI skills for Claude Sonnet.
Claude Sonnet is the everyday model in Claude Code and most coding agents. Skills give it your team's conventions and a repeatable way of working.
npx alyn-cli add brainstorming writing-plans test-driven-developmentAlyn picks for Claude Sonnet
Stack a workflow bundle (plan, test, review) and let Sonnet run it end to end.
Jesse Vincent
Superpowers
Jesse Vincentbrainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, modifying behavior, or planning anything new, in software or out of it (a talk, a…
Jesse Vincent
Superpowers
Jesse Vincentwriting-plans
Use when you have a spec or requirements for a multi-step task, before touching code
Jesse Vincent
Superpowers
Jesse Vincenttest-driven-development
Use when implementing any feature or bugfix, before writing implementation code
Matt Pocockcode-review
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code…
Paul Bakausimpeccable
Use when the user wants to design, redesign, shape, critique, audit, polish, simplify, harden, animate, or otherwise improve a frontend interface: websites, landing pages, dashboards…
heydamirunslop
Turns vibecoded, AI-looking UI into a designed interface with its own character. Finds a direction from the product itself, then fixes spacing, color, icons, copy, type, layout, details…
Anthropic
Skills
Anthropicwebapp-testing
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and…
Anthropic
Skills
Anthropicmcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to…
Why skills make Claude Sonnet better
Sonnet is strong enough to work on its own, so skills pay off as consistency: the same review checklist, the same design rules and the same planning loop in every session.
Where to use Claude Sonnet with skills
Top ranked AI skills right now
Matt Pocockcode-review
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code…
Matt Pocockcodebase-design
Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more…
Matt Pocockdiagnosing-bugs
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
affaan-magent-self-evaluation
Use after completing any non-trivial task. The agent self-rates its output on 5 axes — accuracy, completeness, clarity, actionability, conciseness — with concrete evidence per criterion…
affaan-mangular-developer
Generates Angular code and provides architectural guidance. Trigger when creating projects, components, or services, or for best practices on reactivity (signals, linkedSignal, resource)…
affaan-mbrand-discovery
Run a structured, resumable multi-session brand identity interview across 8 modules (purpose, positioning, audience, personality, voice, narrative, founder tension) using laddering, 5 Whys…
JuliusBrusseecaveman
Terse caveman voice: answer first, fluff gone, every technical fact kept. Use for /caveman, "caveman mode", "talk like caveman", "be brief", "less tokens". Stays on until "stop caveman" or…
JuliusBrusseecaveman-commit
Write a Conventional Commits message compressed to intent only. Use for "write a commit", "commit message", /commit or /caveman-commit.
Claude Sonnet FAQ
Do AI skills work with Claude Sonnet?
Yes. Skills are SKILL.md files your agent loads into the context, so they work with Claude Sonnet in Claude Code, Claude, Cursor, GitHub Copilot.
What are the best AI skills for Claude Sonnet?
Alyn's picks for Claude Sonnet: brainstorming, writing-plans, test-driven-development, code-review, impeccable. Stack a workflow bundle (plan, test, review) and let Sonnet run it end to end.
Why use skills with Claude Sonnet?
Sonnet is strong enough to work on its own, so skills pay off as consistency: the same review checklist, the same design rules and the same planning loop in every session.