Best Claude skills for coding
Coding skills change how your agent works, not only what it writes: brainstorm before building, write a plan, test first, review its own diff, and finish branches cleanly. Packs like Superpowers, Matt Pocock's skills, Addy Osmani's agent skills and Garry Tan's gstack are the most starred skills on GitHub.
1747 coding skills · ranked live · November 2026
The top 10. Ranked by the Alyn Score.
- 1#1
Matt Pocock
Diagnosing Bugs
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
Pack321k33MScore 97 - 2#2
Ask Matt
Ask which skill or flow fits your situation. A router over the skills in this repo.
Pack321k33MScore 95 - 3#3
Code 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…
Pack321k33MScore 95 - 4#4
Jesse Vincent
Superpowers
Jesse Vincent
Writing Skills
Use when creating new skills, editing existing skills, or verifying skills work before deployment
Pack316k3.9MScore 94 - 5#5
Jesse Vincent
Superpowers
Brainstorming
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…
Pack316k3.9MScore 92 - 6#6
Jesse Vincent
Superpowers
Diagnosing Superpowers
Use when a superpowers session went wrong and your human partner wants to know why — repeated work, ignored plans, stumbles, poor results, a skill that didn't fire, "it took too long", "why…
Pack316k3.9MScore 92 - 7#7
JuliusBrussee
Caveman Learn
Act on a Caveman learn report - review the ranked token sinks, apply cost-lowering fixes with per-edit consent, and report what those fixes returned. Use when asked to lower an agent's…
Pack119k4.8MScore 90 - 8#8
affaan-m
Agent Architecture Audit
Full-stack diagnostic for agent and LLM applications. Audits the 12-layer agent stack for wrapper regression, memory pollution, tool discipline failures, hidden repair loops, and rendering…
Pack301k1.7MScore 89 - 9#9
Agent Sort
Build an evidence-backed ECC install plan for a specific repo by sorting skills, commands, rules, hooks, and extras into DAILY vs LIBRARY buckets using parallel repo-aware review passes…
Pack301k1.7MScore 89 - 10#10
Android Clean Architecture
Clean Architecture patterns for Android and Kotlin Multiplatform projects — module structure, dependency rules, UseCases, Repositories, and data layer patterns. Use when structuring…
Pack301k1.7MScore 89
What makes a great coding skill.
A workflow (plan, implement, verify) rather than a list of tips.
Explicit stop conditions so the agent asks instead of guessing.
Skills that compose: planning, testing and review that hand off to each other.
All 1747 coding skills.
JuliusBrusseeinvestigate-first
Diagnose ambiguous failures before editing. Use for unknown causes, intermittent behavior, performance regressions, or investigations needing evidence-ranked hypotheses.
Garry Tan
Gstack
Garry Tanmake-pdf
Turn any markdown file into a publication-quality PDF. (gstack)
JuliusBrusseemigration
Implement reversible compatibility-safe transitions. Use for schema, data, API, protocol, configuration, or dependency migrations requiring rollback and preservation proof.
Garry Tan
Gstack
Garry Tanplan-ceo-review
CEO/founder-mode plan review. (gstack)
Anthropic
Claude Plugins Official
Anthropicplugin-settings
This skill should be used when the user asks about "plugin settings", "store plugin configuration", "user-configurable plugin", ".local.md files", "plugin state files", "read YAML…
Garry Tan
Gstack
Garry Tanqa
Use when you test the site, API or CLI and fix bugs. (gstack)
Garry Tan
Gstack
Garry Tanrunaway-stopper
Find runaway Capy threads and subagents, stop or rotate them safely, and prevent repeats. (gstack)
JuliusBrusseesafe-refactor
Restructure code while preserving behavior. Use for extraction, consolidation, ownership moves, or cleanup where verification must bracket structural edits.
Anthropic
Claude Plugins Official
Anthropicskill-creator
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…
JuliusBrusseesurgical-patch
Fix bugs and small behavior changes at the narrowest responsible layer. Use when regression proof, preserved surrounding behavior, and task-relevant tests matter.
JuliusBrusseeverify-and-stop
Prove existing work meets acceptance conditions without expanding scope. Use for validation-only tasks, completion checks, focused gate runs, and last-mile proof.
Garry Tan
Gstack
Garry Tanwrite-skill
Write a new agent skill or improve one without bloat: the edit ladder, levels, drift and size checks, full diets. (gstack)
GitHub
Awesome Copilot
GitHubanti-ui-slop
Stop coding agents from shipping generic UI. Use UIZZE's 800,000+ real web and iOS screens to build product-specific interfaces, define a design contract, cover required states, and run a…
GitHub
Awesome Copilot
GitHubappinsights-instrumentation
Instrument a webapp to send useful telemetry data to Azure App Insights
DietrichGebertponytail-help
Quick reference for ponytail levels, skills and commands. One-shot display. Use for /ponytail-help, "ponytail help", "how do I use ponytail".
GitHub
Awesome Copilot
GitHubacreadiness-policy
Help the user pick, write, or apply an AgentRC policy. Policies customise readiness scoring by disabling irrelevant checks, overriding impact/level, setting pass-rate thresholds, or…
Skills
Googleagent-platform-skill-registry
Interact with the Gemini Enterprise Agent Platform Skill Registry to create and search for available skills. Use this skill to enable agents to register functionality or discover new…
Anthropic
Claude Plugins Official
Anthropicbuild-mcp-app
This skill should be used when the user wants to build an "MCP app", add "interactive UI" or "widgets" to an MCP server, "render components in chat", build "MCP UI resources", make a tool…
Garry Tan
Gstack
Garry Tancareful
Safety guardrails for destructive commands. (gstack)
Anthropic
Claude Plugins Official
Anthropicclaude-automation-recommender
Analyze a codebase and recommend Claude Code automations (hooks, subagents, skills, plugins, MCP servers). Use when user asks for automation recommendations, wants to optimize their Claude…
Anthropic
Claude Plugins Official
Anthropicclaude-md-improver
Audit and improve CLAUDE.md files in repositories. Use when user asks to check, audit, update, improve, or fix CLAUDE.md files. Scans for all CLAUDE.md files, evaluates quality against…
Garry Tan
Gstack
Garry Tancodex
OpenAI Codex CLI wrapper — three modes. (gstack)
Anthropic
Claude Plugins Official
Anthropiccommand-development
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize…
Garry Tan
Gstack
Garry Tancontext-restore
Restore working context saved earlier by /context-save. (gstack)
Garry Tan
Gstack
Garry Tancontext-save
Save working context. (gstack)
Garry Tan
Gstack
Garry Tancso
Security audit: supported static findings; qualified profiles add reproduction and repair candidates. (gstack)
Garry Tan
Gstack
Garry Tandesign-consultation
Design consultation: understands your product, researches the landscape, proposes a complete design system (aesthetic, typography, color, layout, spacing, motion), and generates font+color…
Garry Tan
Gstack
Garry Tandesign-shotgun
Design shotgun: generate multiple AI design variants, open a comparison board, collect structured feedback, and iterate. (gstack)
Garry Tan
Gstack
Garry Tandeslop-shared-libs
Find worthwhile shared-code extractions in recent work. (gstack)
Garry Tan
Gstack
Garry Tandevex-review
Live developer experience audit. (gstack)
Garry Tan
Gstack
Garry Tandocument-generate
Generate missing documentation from scratch for a feature, module, or entire project. (gstack)
Garry Tan
Gstack
Garry Taneval-plan
Preregister a paid eval (bars, arms, decoys, stop rules), dry-run it at zero cost, then run a three-item priced pilot whose spend table gates approval. (gstack)
Garry Tan
Gstack
Garry Tangstack-openclaw-ceo-review
Use when asked to review a plan, challenge a proposal, run a CEO review, poke holes in an approach, think bigger about scope, or decide whether to expand or reduce the plan.
Garry Tan
Gstack
Garry Tangstack-openclaw-office-hours
Use when asked to brainstorm, evaluate whether an idea is worth building, run office hours, or think through a new product idea or design direction before any code is written.
Garry Tan
Gstack
Garry Tangstack-openclaw-retro
Weekly engineering retrospective. Analyzes commit history, work patterns, and code quality metrics with persistent history and trend tracking. Team-aware with per-person contributions…
Garry Tan
Gstack
Garry Tangstack-plan
Use before building a feature: challenge the scope, then review architecture, code quality, tests and performance, and end with a plan to build. (gstack)
Coding skills, explained.
Also searched as: claude code skills, best claude code skills, software engineering skills, superpowers.
What are the best Claude skills for coding?
Right now the top-ranked coding skills on Alyn are Diagnosing Bugs (Matt Pocock), Ask Matt (Matt Pocock), Code Review (Matt Pocock). Rankings combine GitHub stars, installs, freshness and depth, and update live.
What are the best Claude Code skills?
By stars and installs: Superpowers (obra), Matt Pocock's skills, Addy Osmani's agent-skills, gstack (Garry Tan) and Caveman. Alyn ranks them live.
How many skills should I install?
Start with one workflow pack and two or three task skills. Each skill only costs about 100 tokens until it is used, but overlapping skills can confuse which one runs.
How do I install a coding skill?
Run npx skills add owner/repo in your project, or copy the folder with SKILL.md into ~/.claude/skills. Every skill on this page has a ready-to-copy command.
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Coding skills for your agent