Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add rules/copilotkit/copilotkit/copilotkit-architecturegit clone --depth 1 https://github.com/CopilotKit/CopilotKitWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00477 |
| Opus 5 | $0.00000 | $0.00238 |
| Sonnet 5 | $0.00000 | $0.00095 |
| Haiku 4.5 | $0.00000 | $0.00048 |
Grade A, and why
copilotkit-architecture scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
CopilotKit Architecture Overview
Core Library Structure
The main CopilotKit library is located in CopilotKit/ with the following key packages:
React Packages
- react-core/ - Core React components and hooks for CopilotKit
- react-textarea/ - Textarea component with AI integration
- react-ui/ - UI components for copilot interfaces
Runtime & SDK
- runtime/ - Core runtime for executing copilot actions
- runtime-client-gql/ - GraphQL client for runtime communication
- sdk-js/ - JavaScript SDK for backend integration
- shared/ - Shared utilities and types
Python SDK
- sdk-python/ - Python SDK with integrations for:
Key Concepts
- Copilots: AI assistants that can read and write application state
- Actions: Functions that copilots can call to interact with your application
- Agents: Backend AI agents that process complex tasks
- Coagents: Multi-agent systems for complex workflows
Examples Structure
All examples are in examples/ and typically follow this pattern:
agent/oragent-py/- Backend agent implementationui/- Frontend Next.js applicationREADME.md- Setup and usage instructions
Development Workflow
- Examples use the local packages via workspace references
- package.json contains workspace configuration
- Scripts in scripts/ for development, testing, and releases
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 46 lines · 0 tokens per session scan A d94a2b6646dd
copilotkit-architecture is a cursor rule published in the GitHub repository CopilotKit/CopilotKit (37,138 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 477 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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