Benjamin Taylor
6c25273afe
The packaged skills had grown into a second copy of the documentation. `runtime` and `react-core` were roughly 60% transcribed API surface, and most of their remaining "Common Mistakes" prose already existed on a docs page. A cached copy of an API goes stale silently: four claims in the deleted skills contradicted the source they cited, and one of them reached a shipped PR before it was caught. Replace them with two skills that look the answer up instead of restating it: - `copilotkit` — the four search tools and two explore tools of the bundled `copilotkit-docs` MCP server, which corpus answers which question, and the instruction not to answer from memory. - `copilotkit-cli` — the CLI, led by `copilotkit verify --json`. Since #1180 `verify` covers version skew, CORS, and transcription, which is what most of the old `copilotkit-debug` skill described by hand. Deleted: copilotkit-setup, copilotkit-develop, copilotkit-integrations, copilotkit-debug, copilotkit-upgrade, copilotkit-agui, copilotkit-contribute, copilotkit-self-update, and the three package-generated skills (react-core, runtime, a2ui-renderer). The `skills` directory is dropped from the `files` field of the three packages that shipped one, so the tarballs no longer carry a copy. `public-skill-drift.test.ts` guarded wording in files that no longer exist. It is now a link guard: every `docs.copilotkit.ai` path named by a packaged skill has to resolve to a page in this repo, and the two entry points have to stay free of a transcribed API surface. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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CopilotKit
Build agent-native applications — on any framework, on any surface.
Generative UI, shared state, and human-in-the-loop workflows for React, Angular, Vue, React Native — and in Slack and Microsoft Teams.
What is CopilotKit?
CopilotKit is a best-in-class SDK for building full-stack agentic applications, Generative UI, and chat applications.
What started as a React library is now the horizontal layer between your agents and your users: the same agent can power your web app, your mobile app, and your team's Slack or Microsoft Teams workspace.
We are the company behind the AG-UI Protocol — adopted by Google, LangChain, AWS, Microsoft, Mastra, PydanticAI, and more!
Quick Start
Up and running in under five minutes. All you need is an LLM key (OpenAI, Anthropic, Gemini, etc.).
npx copilotkit@latest create
Agent Skills
CopilotKit ships agent skills that teach your coding agent (Claude Code, Codex, Cursor, Gemini, and others) how to work with CopilotKit. There are two: copilotkit, which searches the current documentation and source instead of answering from training data, and copilotkit-cli, which drives the CLI and proves a project's wiring with copilotkit verify.
Install them into any project directory:
npx copilotkit@latest skills install
Run it again any time to refresh to the latest skills.
Bring Your App to Life
https://github.com/user-attachments/assets/72b7b4f3-b6e7-460c-a932-5746fe3c8db3
Features:
- Chat UI – A fully customizable chat interface that supports message streaming, tool calls, and agent responses.
- Backend Tool Rendering – Enables agents to call backend tools that return UI components rendered directly in the client.
- Generative UI – Allows agents to generate and update UI components dynamically at runtime based on user intent and agent state.
- Shared State – A synchronized state layer that both agents and UI components can read from and write to in real time.
- Human-in-the-Loop – Lets agents pause execution to request user input, confirmation, or edits before continuing.
- Self-Learning (early access) – Agents that continuously improve from user feedback via in-context reinforcement learning (CLHF).
🧩 Works With Your Stack
One agent backend. Every frontend.
| Platform | Status | Get Started |
|---|---|---|
| ⚛️ React / Next.js | ✅ GA | Quickstart |
| 🅰️ Angular | ✅ Supported | Source Code & Quickstart |
| 💚 Vue | ✅ Supported | Source Code - Quickstart coming soon |
| 📱 React Native | ✅ Supported | Quickstart |
| 💬 Slack / Microsoft Teams | ✅ Supported | Channels · Quickstart |
| 🔜 Discord / WhatsApp / Telegram / Google Chat / iMessage / SMS | 🟡 Coming soon | Channels |
Your agent logic stays the same — AG-UI handles the wire protocol, CopilotKit handles the UI layer for each framework and channel.
💬 Channels: One Agent, Every Chat App
The Channels SDK takes the agent you already built and drops it into the chat apps your users live in — same tools, same shared state, same human-in-the-loop, no rewrite (Learn more).
- Slack – Agents as first-class Slack apps: threads, tool calls, and human-in-the-loop approvals right in the channel.
- Microsoft Teams – Bring agentic workflows to the enterprise, where your org already lives.
🧠 Self-Learning Agents
Improve your product by learning over time.
With Continuous Learning from Human Feedback (CLHF), part of CopilotKit Intelligence, agents improve with every interaction:
- In-context reinforcement learning – Agents automatically improve from user interactions, no model fine-tuning required.
- Automatic prompt augmentation – Agent behavior adapts based on recent interactions and outcomes.
- Per-user adaptation – Agents learn individual preferences and get better for each user over time.
- Threads & persistence – Full interaction history — generative UI, human-in-the-loop, shared state — captured across sessions.
Available via CopilotKit Cloud or self-hosted.
🔒 Early access: We're onboarding teams now.
https://github.com/user-attachments/assets/7372b27b-8def-40fb-a11d-1f6585f556ad
What this gives you:
- CopilotKit installed – Core packages are fully set up in your app
- Provider configured – Context, state, and hooks ready to use
- Agent <> UI connected – Agents can stream actions and render UI immediately
- Deployment-ready – Your app is ready to deploy
Complete getting started guide →
How it works:
CopilotKit connects your UI, agents, and tools into a single interaction loop.
This enables:
- Agents that ask users for input
- Tools that render UI
- Stateful workflows across steps and sessions
- One agent, deployed across web, mobile, and chat platforms
⭐️ useAgent Hook
The useAgent hook sits directly on AG-UI, giving you full programmatic control over the agent connection.
// Programmatically access and control your agents
const { agent } = useAgent({ agentId: "my_agent" });
// Render and update your agent's state
return <div>
<h1>{agent.state.city}</h1>
<button onClick={() => agent.setState({ city: "NYC" })}>
Set City
</button>
</div>
Check out the useAgent docs to learn more.
https://github.com/user-attachments/assets/67928406-8abc-49a1-a851-98018b52174f
Generative UI
Generative UI is a core CopilotKit pattern that allows agents to dynamically render UI as part of their workflow.
https://github.com/user-attachments/assets/3cfacac0-4ffd-457a-96f9-d7951e4ab7b6
Compare the Three Types
Explore:
Generative UI educational repo →
🖥️ AG-UI: The Agent–User Interaction Protocol
Connect agent workflows to user-facing apps, with deep partnerships and 1st-party integrations across the agentic stack—including LangChain, CrewAI, Mastra, PydanticAI, and more.
npx create-ag-ui-app my-agent-app
🤝 Community
Have questions or need help?
Join our Discord →Read the Docs →
Try CopilotKit Intelligence →
Stay up to date with our latest releases!
Follow us on LinkedIn →Follow us on X →
🙋🏽♂️ Contributing
Thanks for your interest in contributing to CopilotKit! 💜
We value all contributions, whether it's through code, documentation, creating demo apps, or just spreading the word.
Here are a few useful resources to help you get started:
-
For code contributions, CONTRIBUTING.md.
-
For documentation-related contributions, check out the documentation contributions guide.
-
Want to contribute but not sure how? Join our Discord and we'll help you out!
📄 License
This repository's source code is available under the MIT License.