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Development Claude Skills

8 673 development skills from 759 authors. They write and change code. Half of them fit into 1 830 tokens or less — that is what one costs your context window when the agent loads it. 1 213 ship runnable scripts rather than instructions alone. 42 of them cannot work without an MCP server, most often rube. We also found 1 239 copies of these same skills sitting in other people's repositories — counted once here, not 1 239 times.

8 673 unique 759 authors 10 updated this month 1 368 from vendors

1 830
tokens, median
what a typical one costs in context
1 213
ship scripts
code that runs, not instructions alone
42
need a server
most often rube
1 239
copies elsewhere
counted once here, not once per repository

3 697–3 744 of 8 673

page 78 of 181
Implementing Realtime Sync
by ancoleman

Real-time communication patterns for live updates, collaboration, and presence. Use when building chat applications, collaborative tools, live dashboards, or streaming interfaces (LLM responses, metrics). Covers SSE (server-sent events for one-way streams), WebSocket (bidirectional communication), WebRTC (peer-to-peer video/audio), CRDTs (Yjs, Automerge for conflict-free collaboration), presence patterns, offline sync, and scaling strategies. Supports Python, Rust, Go, and TypeScript.

2.3k tokens scripts
Managing Git Workflows
by ancoleman

Manage Git branching strategies, commit conventions, and collaboration workflows. Use when choosing between trunk-based development, GitHub Flow, or GitFlow, implementing conventional commits for automated versioning, setting up Git hooks for quality gates, or organizing monorepos with clear ownership.

2.5k tokens scripts
Prompt Engineering
by ancoleman

Engineer effective LLM prompts using zero-shot, few-shot, chain-of-thought, and structured output techniques. Use when building LLM applications requiring reliable outputs, implementing RAG systems, creating AI agents, or optimizing prompt quality and cost. Covers OpenAI, Anthropic, and open-source models with multi-language examples (Python/TypeScript).

5.2k tokens scripts
Managing Secrets
by ancoleman

Managing secrets (API keys, database credentials, certificates) with Vault, cloud providers, and Kubernetes. Use when storing sensitive data, rotating credentials, syncing secrets to Kubernetes, implementing dynamic secrets, or scanning code for leaked secrets.

2.9k tokens scripts
Streaming Data
by ancoleman

Build event streaming and real-time data pipelines with Kafka, Pulsar, Redpanda, Flink, and Spark. Covers producer/consumer patterns, stream processing, event sourcing, and CDC across TypeScript, Python, Go, and Java. When building real-time systems, microservices communication, or data integration pipelines.

2.9k tokens scripts
Transforming Data
by ancoleman

Transform raw data into analytical assets using ETL/ELT patterns, SQL (dbt), Python (pandas/polars/PySpark), and orchestration (Airflow). Use when building data pipelines, implementing incremental models, migrating from pandas to polars, or orchestrating multi-step transformations with testing and quality checks.

3k tokens scripts
Using Message Queues
by ancoleman

Async communication patterns using message brokers and task queues. Use when building event-driven systems, background job processing, or service decoupling. Covers Kafka (event streaming), RabbitMQ (complex routing), NATS (cloud-native), Redis Streams, Celery (Python), BullMQ (TypeScript), Temporal (workflows), and event sourcing patterns.

2.9k tokens scripts
Writing Dockerfiles
by ancoleman

Writing optimized, secure, multi-stage Dockerfiles with language-specific patterns (Python, Node.js, Go, Rust), BuildKit features, and distroless images. Use when containerizing applications, optimizing existing Dockerfiles, or reducing image sizes.

3.2k tokens scripts
Writing Github Actions
by ancoleman

Write GitHub Actions workflows with proper syntax, reusable workflows, composite actions, matrix builds, caching, and security best practices. Use when creating CI/CD workflows for GitHub-hosted projects or automating GitHub repository tasks.

3k tokens scripts
N8n Expressions Official
by n8n-io

Use when writing or reviewing n8n expressions (`{{...}}` syntax), `$json` / `$node` references, Luxon date code, or expression errors. Triggers on `{{}}`, `$json`, `$node`, `$input`, `DateTime`, `Luxon`, "expression error", "evaluating", "format date", "transform field", or any node-parameter assignment.

5.3k tokens
N8n Code Nodes Official
by n8n-io

Use when the user reaches for a Code node, mentions writing JavaScript or Python in n8n, or any custom logic comes up in workflow design. Triggers on "Code node", "Code", "JavaScript", "Python", "custom logic", "transform data", "$input", "$json transformation", "loop in code", "write a function", or any time the obvious answer seems to be "just put it in code.

3.1k tokens
N8n Error Handling Official
by n8n-io

Use when building any webhook-triggered workflow, scheduled/production-bound workflow, wiring a per-node error output, or any workflow where silent failure would drop user-visible work. Triggers on "webhook", "respond to webhook", "API", "production", "error", "failure", "5xx", "try/catch", "error workflow", "onError", "continueErrorOutput", "error branch", "node error output", "output(1)", "main[1]", "scheduled", or any workflow that runs unattended.

3k tokens scripts
N8n Loops Official
by n8n-io

Use when working with multi-item data, batches, paginated APIs, rate-limited APIs, fan-out across multiple branches, anything that needs to "do this for each", or any time the user mentions looping, iterating, batching, paging, parallelism, or "loop over items". Triggers on "loop", "iterate", "for each", "batch", "page through", "paginate", "rate limit", "process all", "fan-out", "parallel branches", "concurrency", or any node that should run once vs once-per-item.

3.4k tokens
Pavedpath Code
by Jia-Ethan

PavedPath Code is the code-focused edition of PavedPath. It helps agents solve software engineering problems by finding proven implementation paths from GitHub repositories, issues, pull requests, discussions, code examples, release notes, and open-source evidence.

3.6k tokens
Resend CLI
by resend

> Operate the Resend platform from the terminal — send emails (including React Email .tsx templates via --react-email), manage domains, contacts, broadcasts, templates, webhooks, API keys, logs, automations, and events via the `resend` CLI. Use when the user wants to run Resend commands in the shell, scripts, or CI/CD pipelines, or send/preview React Email templates. Always load this skill before running `resend` commands — it contains the non-interactive flag contract and gotchas that prevent silent failures.

2.7k tokens
Daily Briefing Builder
by BrianRWagner

Generate a clean morning brief in Claude Code — pulls today's priorities, unposted content, and weather from your vault.

1.3k tokens
Chat SDK
by microsoft
vendor

Send a message to a Copilot Studio agent via the Copilot Studio Client SDK (M365). Use for agents with integrated auth (Entra ID SSO). Requires an App Registration Client ID.

592 tokens
Test Auth
by microsoft
vendor

> Authenticate for Copilot Studio evaluation API and SDK chat. Caches a token that is shared across run-eval and chat-sdk skills. Run this before any eval or SDK chat workflow. Requires an App Registration with MakerOperations and Copilots.Invoke permissions.

1.1k tokens
One Step Better AI Pm
by menkesu

Get one actionable improvement for your AI product based on the latest GenAI PM briefs. Fetch the last 5 days of curated AI PM insights from genaipm.com, analyze the current repo/project, find synergy between trending topics and the user's work, then research the source material and apply a concrete improvement. Use when the user wants to improve their AI product, get coaching on AI PM best practices, apply the latest industry insights to their codebase, or run "/one-step-better-ai-pm". Requires a GenAI PM subscriber email (set GENAIPM_EMAIL env var or provide when prompted).

1.8k tokens
Strategy Frameworks
by menkesu

Creates product strategies using Crossing the Chasm, Playing to Win, and strategic canvas frameworks. Use when defining where to play and how to win, choosing beachhead markets, or connecting tactics to strategy.

537 tokens
Yao Techselect Hskill
by bruc3van

帮助开发团队进行技术选型决策,提供框架对比、架构评估和最佳实践建议。适用于需要在多个技术方案中做出选择的场景。

797 tokens zh
Plugin Creator
by bruc3van

Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries for plugin ordering and availability metadata, or update an existing local plugin during development with the CLI-driven cachebuster and reinstall flow.

2.8k tokens scripts
Rust Skills
by leonardomso

> Comprehensive Rust coding guidelines with 265 rules across 26 categories. Use when writing, reviewing, or refactoring Rust code. Covers ownership, error handling, async patterns, concurrency, unsafe code, API design, memory optimization, performance, numeric safety, conversions, serde, pattern matching, macros, closures, observability, testing, and common anti-patterns. Invoke with /rust-skills.

9.5k tokens scripts
Vueuse Functions
by vueuse

Apply VueUse composables where appropriate to build concise, maintainable Vue.js / Nuxt features.

9.3k tokens
Release
by DataDog

Cut a new datadog-go release and update CHANGELOG.md following the repo's house style. Use when asked to "prepare a release", "cut version X.Y.Z", "update the changelog for the release", "bump the version", or "tag a release" for the DataDog/datadog-go repo. Walks the three-step release process (changelog → telemetry version → git tag) and enforces the 13 changelog guidelines.

2k tokens
Upgrade Cleanup
by ombulabs

Clean up after (or abandon) a Rails upgrade. Drop NextRails.next? and NextRails.current? branches and retire dual-boot scaffolding (Gemfile.next, Gemfile.next.lock, conditional Gemfile groups), keeping either the next or the current version. Trigger when the user says they are done with the upgrade, want to clean up dual-boot, want to drop NextRails branches, want to finish the upgrade, want to abandon or revert the upgrade attempt, want to roll back to the current Rails version, or want to pause this upgrade hop. Based on FastRuby.io's "Finishing an Upgrade" methodology, extended with an abandon/pause path.

826 tokens
Winui Code Review
by microsoft
vendor

Code quality review for WinUI 3 apps — MVVM compliance, x:Bind correctness, accessibility, theming, security, and performance. Use before committing to catch issues that the compiler and UI tests won't find.

1.5k tokens
Winui Setup
by microsoft
vendor

Install and verify the prerequisites the win-dev-skills WinUI 3 toolchain depends on — .NET SDK 10, the WinApp CLI, the WinUI 3 .NET templates, and Developer Mode. Use when setting up a new machine, after a Windows reset, or when another winui skill reports a missing prerequisite (e.g., `winapp` not found, `dotnet` not found, the WinUI 3 templates are missing, or Developer Mode is off).

1.9k tokens
Winui Session Report
by microsoft
vendor

Analyze the current or a recent agent session (GitHub Copilot CLI or Claude Code) and generate a diagnostic report. Use when asking for session feedback, debugging agent behavior, or reviewing what happened during a build session.

1.4k tokens
Winui Wpf Migration
by microsoft
vendor

Migrate WPF applications to WinUI 3 — namespace replacement (System.Windows → Microsoft.UI.Xaml), control mapping (DataGrid→ListView, WrapPanel→ItemsRepeater, TabControl→TabView), threading (Dispatcher→DispatcherQueue), imaging (System.Drawing→BitmapImage), MVVM conversion to CommunityToolkit.Mvvm, and DynamicResource→ThemeResource. Use when converting WPF code, replacing WPF namespaces, or fixing migration build errors.

1.1k tokens
Procedure Coding
by anthropics
vendor

Assign CPT and HCPCS Level II procedure codes from clinical documentation the way a professional coder builds the claim. Use when users say "code this encounter for procedures", "what CPT codes apply", "assign HCPCS codes", "code this op note", or when turning visit notes or operative reports into claim-ready procedure codes.

1.7k tokens
API Design
by cosmicstack-labs

REST and GraphQL API design principles, versioning, error handling, and documentation patterns

1.9k tokens
Python Patterns
by cosmicstack-labs

Python best practices including type hints, async patterns, testing, and project structure

2k tokens
Negotiation
by cosmicstack-labs

>- A comprehensive skill for mastering negotiation — from preparation and frameworks to tactics, multi-party dynamics, and closing. Covers salary negotiation, buyer vs seller dynamics, remote negotiation, and more.

4.6k tokens
Interview Prep
by cosmicstack-labs

Behavioral frameworks, technical interview patterns, system design, coding, and negotiation prep

449 tokens
API Documentation
by cosmicstack-labs

API Documentation: OpenAPI/Swagger specs, Postman collections, API reference patterns, and client SDK docs

7.4k tokens
Clean Code
by cosmicstack-labs

Principles and practices for writing readable, maintainable, and testable code

2.1k tokens
Documentation Generation
by cosmicstack-labs

Effective technical documentation strategies, API docs, README patterns, and doc generation workflows

4.5k tokens
Dependency Management
by cosmicstack-labs

Version pinning, vulnerability scanning, monorepo patterns, and upgrade workflows

448 tokens
Git Workflow
by cosmicstack-labs

Git best practices, branching strategies, commit conventions, and code review patterns

1.7k tokens
Hyperframes CLI
by cosmicstack-labs

HyperFrames CLI dev loop — project scaffolding, validation (lint/inspect), browser preview with live reload, MP4/WebM rendering, and environment troubleshooting (doctor, browser, info, upgrade). Use when running any npx hyperframes command or troubleshooting the build/render environment. For composition authoring see the hyperframes skill; for asset preprocessing (tts, transcribe, remove-background) see the hyperframes-media skill.

1.4k tokens
Nextjs Patterns
by cosmicstack-labs

Next.js best practices, server components, app router patterns, caching strategies, and full-stack architecture

2.1k tokens
React Patterns
by cosmicstack-labs

Component patterns, hooks, state management, and performance optimization for React applications

2.3k tokens
Web Performance
by cosmicstack-labs

Web performance optimization patterns, Core Web Vitals, lazy loading, code splitting, caching strategies, and monitoring

656 tokens
Github Repo Tour
by cosmicstack-labs

Generate a 15-30 second scrolling video tour of any GitHub repository page with ElevenLabs AI narration and word-by-word subtitle sync. Captures a full-page mobile-viewport screenshot, scrolls top-to-bottom with GSAP, and burns synced subtitles onto the final MP4 using HyperFrames CLI.

5k tokens
React Native Patterns
by cosmicstack-labs

Navigation, state management, native modules, performance, animations, and cross-platform strategies

489 tokens
Presentation Automation
by cosmicstack-labs

Presentation Automation: python-pptx, Google Slides API, automated slide generation from data and templates

7.8k tokens
Jules
by sanjay3290

Delegate coding tasks to Google Jules AI agent for asynchronous execution. Use when user says: 'have Jules fix', 'delegate to Jules', 'send to Jules', 'ask Jules to', 'check Jules sessions', 'pull Jules results', 'jules add tests', 'jules add docs', 'jules review pr'. Handles: bug fixes, documentation, features, tests, refactoring, code reviews. Works with GitHub repos, creates PRs.

2.1k tokens