Agent Skills
Instruction packs that give your AI agent know-how — some work anywhere, some only with the tool they came with.
✦ Standalone skills3,297
Self-contained. Install one into any project and it works on its own — no other software needed.
🧰 Tool add-ons438
Come bundled with a specific tool and only work together with it — they teach your agent how to operate that tool.
🔌 Needs setup first142
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.
github · Development
1,553 standalone skills
clerk-custom-ui
★ 54by clerk
Custom authentication flows and component appearance - hooks (useSignIn, useSignUp), themes, colors, fonts, CSS. Use for custom sign-in/sign-up flows, appearance styling, visual customization, branding.
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.
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.
logs-nextjs
★ 49by posthog
PostHog logs for Next.js
logs-nodejs
★ 49by posthog
PostHog logs for Node.js
integration-swift
★ 49by posthog
PostHog integration for Swift iOS and macOS applications
feature-flags-react
★ 49by posthog
PostHog feature flags for React applications
diagnosing-missing-recordings
★ 49by posthog
Diagnoses why a session recording is missing or was not captured. Use when a user asks why a session has no replay, why recordings aren't appearing, or wants to troubleshoot session replay capture issues for a specific session ID or across their project. Covers SDK diagnostic signals, project settings, sampling, triggers, ad blockers, and quota/billing scenarios.
exploring-llm-clusters
★ 49by posthog
Investigate AI observability clusters — understand usage patterns in AI/LLM traffic, compare cluster behavior, compute cost/latency metrics, and drill into individual traces within clusters.
logs-go
★ 49by posthog
PostHog logs for Go
omnibus-instrument-feature-flags
★ 49by posthog
Add PostHog feature flags to gate new functionality. Use after implementing features or reviewing PRs to ensure safe rollouts with feature flag controls. Also handles initial PostHog SDK setup if not yet installed.
feature-flags-react-native
★ 49by posthog
PostHog feature flags for React Native applications
error-tracking-hono
★ 49by posthog
PostHog error tracking for Hono
feature-flags-elixir
★ 49by posthog
PostHog feature flags for Elixir applications
feature-flags-ios
★ 49by posthog
PostHog feature flags for iOS applications
integration-react-tanstack-router-file-based
★ 49by posthog
PostHog integration for React applications using TanStack Router with file-based routing
feature-flags-java
★ 49by posthog
PostHog feature flags for Java applications
feature-flags-nextjs
★ 49by posthog
PostHog feature flags for Next.js applications
integration-react-react-router-7-framework
★ 49by posthog
PostHog integration for React Router v7 - Framework mode applications
integration-react-react-router-7-data
★ 49by posthog
PostHog integration for React Router v7 - Data mode applications
feature-flags-php
★ 49by posthog
PostHog feature flags for PHP applications
managing-experiment-lifecycle
★ 49by posthog
Guides experiment state transitions: launching, pausing, resuming, freezing/unfreezing exposure, ending, shipping variants, archiving, resetting, duplicating, and copying to another project. Covers preconditions, implications for variant assignment and analysis, and the decision framework for when to use each action. TRIGGER when: user asks to launch, pause, resume, end, ship, archive, reset, duplicate, or copy an experiment to another project, or to freeze/unfreeze exposure (stop enrolling new users while metrics keep flowing, or reopen enrollment). DO NOT TRIGGER when: user is creating an experiment (use creating-experiments), configuring rollout (use configuring-experiment-rollout), or setting up metrics (use configuring-experiment-analytics).
exploring-autocapture-events
★ 49by posthog
Guides exploration of $autocapture events captured by posthog-js to understand user interactions, find CSS selectors (especially data-attr attributes), evaluate selector uniqueness, query matching clicks ad-hoc, and create actions. Use when the user asks about autocapture data, wants to find what users are clicking, needs to build actions from click events, asks about elements_chain, wants to build a trend or funnel filtered by clicks or other autocapture interactions, asks which properties autocapture sends, or asks how to filter $autocapture events. Only applies to projects using posthog-js autocapture.
feature-flags-nodejs
★ 49by posthog
PostHog feature flags for Node.js applications
integration-angular
★ 49by posthog
PostHog integration for Angular applications
integration-astro-hybrid
★ 49by posthog
PostHog integration for Astro hybrid rendering with both static and server-rendered pages
integration-astro-ssr
★ 49by posthog
PostHog integration for server-rendered Astro applications with API routes
feature-flags-android
★ 49by posthog
PostHog feature flags for Android applications