Development Claude Skills
8 676 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 1 172 copies of these same skills sitting in other people's repositories — counted once here, not 1 172 times.
8 676 unique 759 authors 5 245 updated this month 1 369 from vendors
>- Manage WebRTC credentials and mobile push notification settings. Use when building browser-based or mobile softphone applications. This skill provides Java SDK examples.
>- Manage WebRTC credentials and mobile push notification settings. Use when building browser-based or mobile softphone applications. This skill provides JavaScript SDK examples.
>- Manage WebRTC credentials and mobile push notification settings. Use when building browser-based or mobile softphone applications. This skill provides Python SDK examples.
>- Manage WebRTC credentials and mobile push notification settings. Use when building browser-based or mobile softphone applications. This skill provides Ruby SDK examples.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
>- Send WhatsApp messages, manage templates, WABAs, and phone numbers via the Telnyx WhatsApp Business API.
Review loop for staged changes. Detects content type, prepares a review request for Codex (Terminal-relay manual default, opt-in Auto-terminal codex-exec subprocess, or IDE plugin), categorizes feedback, revises, and iterates. Works for code, papers, proposals, or any text-based output.
Develop, debug, and manage Temporal applications across Python, TypeScript, Go, Java, .NET, Ruby, and Rust. Use when the user is building workflows, activities, or workers with a Temporal SDK, debugging issues like non-determinism errors, stuck workflows, or activity retries, using Temporal CLI, Temporal Server, or Temporal Cloud, or working with durable execution concepts like signals, queries, heartbeats, versioning, continue-as-new, child workflows, or saga patterns. Also use when the user mentions "run a Temporal workflow from the CLI", "start a dev server", "run temporal server start-dev", "temporal workflow start", "temporal workflow execute", "temporal workflow signal", "temporal workflow query", "temporal workflow update".
Compare WOZCODE vs vanilla Claude Code on the user's codebase — real cost, turn, and time savings. TRIGGER on "compare woz", "how much does woz save", "benchmark woz", "woz vs claude", "show me savings", or /woz-benchmark.
Run a bounded Sakana Fugu repository task or explicit review through codex-fugu. Use when the user types /fugu, asks to use Fugu, or asks for a Fugu review.
Revit API fundamentals, Dynamo for Revit, pyRevit framework, IFC schema and openBIM, model checking, automated documentation, clash detection, and BIM interoperability tools for AEC computational design
Python calculators for geometry analysis, structural checking, solar calculations, panel optimization, mesh analysis, material estimation, and fabrication cost estimation for AEC computational design
Python for Rhino and Grasshopper (RhinoCommon, rhinoscriptsyntax, ghpythonlib), C# for Grasshopper components, Python for Revit (pyRevit, RevitPythonShell), JavaScript for web 3D (Three.js), and code patterns for AEC computational design
Build and validate .arch/index.json — a committed map from each architectural component of this repository to the real directories and files that implement it, pinned to a git commit, with every path verified to exist. Also detects structural drift between that index and the current code. Use when asked to map a codebase, produce a component or code-ownership index, find which files implement a component, check whether architecture docs are stale, or detect architecture drift after a refactor. Triggers include 'map the codebase', 'component index', 'which files implement X', 'is the architecture still accurate', 'architecture drift', 'refresh the architecture index'.
Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.
Wrap any command-line tool into a JSON-emitting agent skill. Use when you want to make a CLI reliably callable and parseable by an AI agent — introspect its --help, define a structured-output (--json) contract and a stable error contract, then generate a SKILL.md wrapper with verified examples. Triggers on "wrap this CLI", "make X agent-usable", "generate a skill for this command", "turn a tool into an agent skill".
> Start a safe, governed autonomous loop from a plain-language goal. Use when the user says /coco-loop, "run an autonomous loop", "keep my build green for N hours", "work on X autonomously for a while", or wants a bounded self-improving loop that proposes fixes and never commits on its own. Turns a vague goal into a readable charter the user confirms, then arms and runs the loop propose-only under the coco-loops governance framework.
Install, update, version-check, or uninstall the Coco open-source AI workflow framework via its CLI (@coco-research/coco-cli, run with npx). Use when setting up Coco on a machine, pulling the latest into an existing clone, checking the installed version, or removing it. Triggers on "install coco", "update coco", "set up coco", "coco cli", "uninstall coco".
Post-implementation verification system that catches AI-introduced bugs. Covers 7 categories — TDZ errors, import mismatches, reference integrity, dead code, React state/effects, mock isolation, and CSS integrity. Run after every code change, after writing tests, or before marking a task complete. Triggers on "verify", "check code quality", "run verification", "audit code", "quality gate", "pre-commit check".
Generate a Disaster Recovery plan with RTO/RPO targets. Use when someone asks to "create a DR plan", "disaster recovery", "business continuity", or "RTO RPO". Do NOT use for step-by-step restoration runbooks — use /pmstudio-recovery instead. Designed for SaaS platform products where Coco Inc is the customer — focuses on service continuity, data recovery, and vendor dependency management rather than infrastructure rebuild.
Guidelines for creating API routes in Expo Router with EAS Hosting
Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup
> Loads full context for a React Flow (@xyflow/react) user journey mapping project. Use when working on, extending, debugging, or building features for "work on journey map", "build user journey", "react flow journey project", "journey-map app", or any request to add features like swimlanes, emotion curves, persona nodes, touchpoints, or pain point markers.
| Build AI applications with OpenAI Agents SDK - text agents, voice agents, multi-agent handoffs, tools with Zod schemas, guardrails, and streaming. Prevents 11 documented errors.
Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
Review source files changed during a phase for bugs, security issues, and code quality problems
Systematic debugging with persistent state across context resets
Generate or update project documentation verified against the codebase
Post-mortem investigation for failed GSD workflows — analyzes git history, artifacts, and state to diagnose what went wrong
Query, inspect, or refresh codebase intelligence files in .planning/intel/
Analyze codebase with parallel mapper agents to produce .planning/codebase/ documents
Create a clean PR branch by filtering out .planning/ commits — ready for code review
Remove a GSD workspace and clean up worktrees
Rapid codebase assessment — lightweight alternative to /gsd-map-codebase
Safe git revert. Roll back phase or plan commits using the phase manifest with dependency checks.
Comprehensive RESTful API testing patterns covering HTTP methods, status codes, request/response validation, authentication, error handling, and contract testing.
Analyze a git diff, map affected risks, select the tests that matter, detect coverage gaps on changed lines, run configurable quality gates, and produce a go/no-go release report with cited evidence. Recommends only; never merges or deploys.
API endpoint fuzzing for discovering unexpected behaviors, crashes, and security vulnerabilities through malformed requests, boundary values, and protocol violations.
Automated detection of breaking API changes including response format changes, removed endpoints, type changes, and deprecation enforcement.
Validate API responses against OpenAPI/Swagger specifications, JSON Schema definitions, and consumer-driven contracts to prevent breaking changes
Comprehensive RESTful API testing patterns covering HTTP methods, status codes, request/response validation, authentication, error handling, and contract testing.
Testing library backward compatibility including public API surface verification, semver compliance, TypeScript type compatibility, and migration path validation.
Teach agents to build synthetic monitoring as code with Checkly, including Playwright browser checks, API checks, alerting, and CI deploy workflows.