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 nightly · November 2026
The top 10. Ranked by the Alyn Score.
- 1#1
Matt Pocock
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 98 - 2#2
Codebase 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…
Pack321k33MScore 98 - 3#3
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 98 - 4#4
JuliusBrussee
Caveman
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…
Pack119k4.8MScore 93 - 5#5
Caveman Commit
Write a Conventional Commits message compressed to intent only. Use for "write a commit", "commit message", /commit or /caveman-commit.
Pack119k4.8MScore 93 - 6#6
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 93 - 7#7
morluto
Rea Analysis Optimization
Optimize REA providers and shared analysis workflows for agent context, latency, CPU, and memory while preserving correctness and Evidence. Use for analysis bottlenecks and cache or query…
Pack450k29kScore 93 - 8#8
Rea Ci Tests Audit
Audit REA CI and test suites for correctness, fixture drift, false passes, and measured performance; use for suite or workflow investigations and efficiency changes, rather than ordinary…
Pack450k29kScore 93 - 9#9
Jesse Vincent
Superpowers
Jesse Vincent
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 - 10#10
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
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.
trailofbits
Skills
trailofbitsdwarf-expert
Analyzes DWARF debug information in compiled binaries. Use when inspecting .debug_* sections, DIE trees, or DW_TAG_/DW_AT_ entries with dwarfdump/llvm-dwarfdump or readelf, verifying debug…
Jeffallan
Claude Skills
Jeffallanembedded-systems
Use when developing firmware for microcontrollers, implementing RTOS applications, or optimizing power consumption. Invoke for STM32, ESP32, FreeRTOS, bare-metal, power optimization…
jakubkrehelexplain-interface
Explains how a website, a visual effect or an animation was built, from a live URL or a screenshot.
Jeffallan
Claude Skills
Jeffallanfastapi-expert
Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke to create REST endpoints, define Pydantic models, implement authentication flows, set up async…
Jeffallan
Claude Skills
Jeffallanfeature-forge
Conducts structured requirements workshops to produce feature specifications, user stories, EARS-format functional requirements, acceptance criteria, and implementation checklists. Use when…
Jeffallan
Claude Skills
Jeffallanfine-tuning-expert
Use when fine-tuning LLMs, training custom models, or adapting foundation models for specific tasks. Invoke for configuring LoRA/QLoRA adapters, preparing JSONL training datasets, setting…
Jeffallan
Claude Skills
Jeffallanflutter-expert
Use when building cross-platform applications with Flutter 3+ and Dart. Invoke for widget development, Riverpod/Bloc state management, GoRouter navigation, platform-specific…
trailofbits
Skills
trailofbitsfp-check
Systematically verifies suspected security bugs to eliminate false positives, producing a TRUE POSITIVE or FALSE POSITIVE verdict with documented evidence for each. Use when asked whether a…
Garry Tan
Gstack
Garry Tanfreeze
Restrict file edits to a specific directory for the session. (gstack)
Jeffallan
Claude Skills
Jeffallanfullstack-guardian
Builds security-focused full-stack web applications by implementing integrated frontend and backend components with layered security at every level. Covers the complete stack from database…
Jeffallan
Claude Skills
Jeffallangame-developer
Use when building game systems, implementing Unity/Unreal Engine features, or optimizing game performance. Invoke to implement ECS architecture, configure physics systems and colliders, set…
Jeffallan
Claude Skills
Jeffallangolang-pro
Implements concurrent Go patterns using goroutines and channels, designs and builds microservices with gRPC or REST, optimizes Go application performance with pprof, and enforces idiomatic…
Jeffallan
Claude Skills
Jeffallangraphql-architect
Use when designing GraphQL schemas, implementing Apollo Federation, or building real-time subscriptions. Invoke for schema design, resolvers with DataLoader, query optimization, federation…
Garry Tan
Gstack
Garry Tangstack
Router for the gstack skill suite. (gstack)
Garry Tan
Gstack
Garry Tangstack-upgrade
Upgrade gstack to the latest version.
trailofbits
Skills
trailofbitsguidelines-advisor
Smart contract development advisor based on Trail of Bits' best practices. Analyzes codebase to generate documentation/specifications, review architecture, check upgradeability patterns…
Garry Tan
Gstack
Garry Tanhealth
Code quality dashboard. (gstack)
Garry Tan
Gstack
Garry Tanios-fix
Autonomous iOS bug fixer. (gstack)
Jeffallan
Claude Skills
Jeffallanjava-architect
Use when building, configuring, or debugging enterprise Java applications with Spring Boot 3.x, microservices, or reactive programming. Invoke to implement WebFlux endpoints, optimize JPA…
Jeffallan
Claude Skills
Jeffallanjavascript-pro
Writes, debugs, and refactors JavaScript code using modern ES2023+ features, async/await patterns, ESM module systems, and Node.js APIs. Use when building vanilla JavaScript applications…
Jeffallan
Claude Skills
Jeffallankotlin-specialist
Provides idiomatic Kotlin implementation patterns including coroutine concurrency, Flow stream handling, multiplatform architecture, Compose UI construction, Ktor server setup, and…
Jeffallan
Claude Skills
Jeffallankubernetes-specialist
Use when deploying or managing Kubernetes workloads. Invoke to create deployment manifests, configure pod security policies, set up service accounts, define network isolation rules, debug…
Garry Tan
Gstack
Garry Tanland-and-deploy
Land and deploy workflow. (gstack)
Garry Tan
Gstack
Garry Tanlanding-report
Read-only queue dashboard for workspace-aware ship. (gstack)
Garry Tan
Gstack
Garry Tanlearn
Manage project learnings.
Garry Tan
Gstack
Garry Tanmake-pdf
Turn any markdown file into a publication-quality PDF. (gstack)
Orchestra Research
AI Research SKILLs
Orchestra Researchopenrlhf-training
High-performance RLHF framework with Ray+vLLM acceleration. Use for PPO, GRPO, RLOO, DPO training of large models (7B-70B+). Built on Ray, vLLM, ZeRO-3. 2× faster than DeepSpeedChat with…
Garry Tan
Gstack
Garry Tanpair-agent
Pair a remote AI agent with your browser. (gstack)
Garry Tan
Gstack
Garry Tanqa-only
Report browser/API/CLI/job/worker/webhook bugs. (gstack)
Jakeschincariol
Replica Skill
Jakeschincariolreplica-design
Rebuilds an app's design system for a clone: colour roles, type scale, spacing, radius, shadows and every component with its states, as design tokens plus component specs, with original…
Jakeschincariol
Replica Skill
Jakeschincariolreplica-diff
Compares an app clone against the original: a feature parity score from the feature matrix (weighted by must, should, could) with the missing list in build order, plus a screenshot layout…
Jakeschincariol
Replica Skill
Jakeschincariolreplica-entrepreneur
Researches the app being cloned and reads what its real users say in public reviews (App Store, Google Play, G2, Capterra, Trustpilot, Reddit, Hacker News, its own feature-request board)…
Jakeschincariol
Replica Skill
Jakeschincariolreplica-launch
Writes the launch for an app clone: the landing page built on the positioning angle, pricing set against the original's public pricing and its users' complaints, and the App Store and…
Jakeschincariol
Replica Skill
Jakeschincariolreplica-recon
Reverse-engineers any app into a recon map: screen inventory, user flows, component list, inferred data model and a feature matrix, from public pages, screenshots, app store listings, help…
Jakeschincariol
Replica Skill
Jakeschincariolreplica-test
Clicks through every flow of an app clone and tests it for bugs: a test plan generated from the recon flows with happy paths and edge cases, Playwright end-to-end tests where possible, a…
Garry Tan
Gstack
Garry Tanreview
Use when you review this PR's diff. (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 Code Review (Matt Pocock), Codebase Design (Matt Pocock), Diagnosing Bugs (Matt Pocock). Rankings combine popularity, quality checks, momentum and freshness, and update every night.
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