Agent Skills
Instruction packs that give your AI agent know-how — some work anywhere, some only with the tool they came with.
✦ Standalone skills3,224
Self-contained. Install one into any project and it works on its own — no other software needed.
🧰 Tool add-ons530
Come bundled with a specific tool and only work together with it — they teach your agent how to operate that tool.
🔌 Needs setup first123
Each relies on something you set up separately — such as an app, a command-line tool or an account — and its page names what that is.
mastra-ai · Development
1,493 standalone skills
clerk-webhooks
★ 54by clerk
Clerk webhooks for real-time events and data syncing. Verify with verifyWebhook from the framework-specific package. Handle user, session, organization, billing, and payment events. Build event-driven features like database sync, notifications, and integrations.
clerk-testing
★ 54by clerk
E2E testing for Clerk apps. Use with Playwright or Cypress for auth flow tests.
clerk-swift
★ 54by clerk
Implement Clerk authentication for native Swift and iOS apps using ClerkKit and ClerkKitUI source-guided patterns. Use for prebuilt AuthView or custom native flows. Do not use for Expo or React Native projects.
clerk-nextjs-patterns
★ 54by clerk
Advanced Next.js patterns - middleware, Server Actions, caching with Clerk.
clerk-android
★ 54by clerk
Implement Clerk authentication for native Android apps using Kotlin and Jetpack Compose with clerk-android source-guided patterns. Use for prebuilt AuthView/UserButton or custom API-driven auth flows. Do not use for Expo or React Native projects.
clerk-chrome-extension-patterns
★ 54by clerk
Chrome Extension auth with @clerk/chrome-extension -- popup/sidepanel setup, syncHost for OAuth/SAML via web app, createClerkClient for service workers and headless extensions, stable CRX ID. Triggers on: Chrome extension auth, Plasmo clerk, popup sign-in, syncHost, background service worker token, createClerkClient, headless extension.
agent-auth-cli
★ 51by better-auth
Use the Agent Auth CLI (auth-agent) to discover providers, connect agents, manage capabilities, and execute operations. Use when the user wants to interact with an Agent Auth provider from the terminal, authenticate an agent, execute capabilities, or manage agent connections.
agent-auth-mcp
★ 51by better-auth
Use the Agent Auth MCP tools to discover providers, connect agents, manage capabilities, and execute operations through the MCP protocol. Use when working inside an MCP-enabled environment (Cursor, Claude Code, etc.) and need to authenticate agents, execute capabilities, or interact with Agent Auth providers.
integration-astro-ssr
★ 49by posthog
PostHog integration for server-rendered Astro applications with API routes
auditing-experiments-flags
★ 49by posthog
Audit PostHog experiments and feature flags for configuration issues, staleness, and best-practice violations. Read when the user asks to audit, health-check, or review experiments or feature flags, check flag hygiene, or verify experiment setup.
omnibus-instrument-logs
★ 49by posthog
Add PostHog log capture to track application logs. Use after implementing features or reviewing PRs to ensure meaningful log events are captured with structured properties. Also handles initial OTLP exporter setup if not yet configured.
omnibus-instrument-integration
★ 49by posthog
Add PostHog SDK integration to your application. Use when setting up PostHog for the first time or reviewing PRs that need PostHog initialization. Covers SDK installation, provider setup, and basic configuration for any framework.
omnibus-instrument-error-tracking
★ 49by posthog
Add PostHog error tracking to capture and monitor exceptions. Use after implementing features or reviewing PRs to ensure errors are tracked with stack traces and source maps. Also handles initial PostHog SDK setup if not yet installed.
logs-python
★ 49by posthog
PostHog logs for Python
integration-vue-3
★ 49by posthog
PostHog integration for Vue 3 applications
integration-react-react-router-7-declarative
★ 49by posthog
PostHog integration for React Router v7 - Declarative mode applications
integration-nuxt-3.6
★ 49by posthog
PostHog integration for Nuxt versions 3.0 to 3.6
integration-nextjs-pages-router
★ 49by posthog
PostHog integration for Next.js Pages Router applications
integration-laravel
★ 49by posthog
PostHog integration for Laravel applications
integration-javascript_web
★ 49by posthog
PostHog integration for client-side web JavaScript applications using posthog-js
integration-javascript_node
★ 49by posthog
PostHog integration for server-side Node.js applications using posthog-node
integration-django
★ 49by posthog
PostHog integration for Django applications
integration-astro-view-transitions
★ 49by posthog
PostHog integration for Astro with ClientRouter view transitions
feature-flags-python
★ 49by posthog
PostHog feature flags for Python applications
logs-go
★ 49by posthog
PostHog logs for Go
exploring-llm-traces
★ 49by posthog
Debug and inspect LLM/AI agent traces using PostHog's MCP tools. Use when the user pastes a trace or session URL (e.g. /ai-observability/traces/<id> or /ai-observability/sessions/<id>), asks to debug a trace, figure out what went wrong, check if an agent used a tool correctly, verify context/files were surfaced, inspect subagent behavior, investigate LLM decisions, or analyze token usage and costs. Also use when raw SQL/HogQL against `events.properties.$ai_input` / `$ai_output_choices` returns empty — message content lives only on the dedicated `posthog.ai_events` table.
error-tracking-ruby
★ 49by posthog
PostHog error tracking for Ruby
error-tracking-react
★ 49by posthog
PostHog error tracking for React
error-tracking-python
★ 49by posthog
PostHog error tracking for Python
error-tracking-go
★ 49by posthog
PostHog error tracking for Go