CAIN-42 CAIN StudioRecipes
Recipes: CAIN in your agent, step by step
17 integrations × the tools agents actually call: 184 pages, each with working code and live panels.
Last reviewed 2026-10-03
Every recipe has the same seven steps: get a key, install, put CAIN in front of the tool, see the live decision for that exact call, write a rule and test it before saving, handle held calls, check before you ship. Steps 4 to 6 are live panels that call the real API with your key.
Code follows the usage in each adapter's own source in cainstudio 0.4.2; every rule was run through the production rule tester with the arguments shown.
By framework
Python (any function)
Plugs into the function that acts. 10 recipes.
LangChain
Plugs into your agent's tool list. 10 recipes.
LangGraph
Plugs into the tools your graph's nodes call. 10 recipes.
OpenAI Agents SDK
Plugs into function tools. 10 recipes.
CrewAI
Plugs into CrewAI's before-tool-call hooks. 10 recipes.
LlamaIndex
Plugs into FunctionTool. 10 recipes.
Pydantic AI
Plugs into an agent capability. 10 recipes.
AutoGen (agentchat)
Plugs into the callables you give AssistantAgent. 10 recipes.
Google ADK
Plugs into the functions in an agent's tools. 10 recipes.
Claude Agent SDK
Plugs into PreToolUse hooks. 10 recipes.
MCP client (Python)
Plugs into any MCP client session. 10 recipes.
OpenTelemetry
Plugs into your existing tracing. 10 recipes.
Any other framework
Plugs into any Python callable. 10 recipes.
Claude Code hooks
Plugs into Claude Code's PreToolUse hook. 3 recipes.
Cursor hooks
Plugs into Cursor's permission hooks. 3 recipes.
TypeScript / JavaScript
Plugs into any async function. 10 recipes.
HTTP (any language)
Plugs into your own call site. 10 recipes.
By what the agent can do
Payments
An agent that can move money
Refunds
A support agent that issues refunds
An agent that sends email
SQL
An agent with database access
Shell
An agent that runs shell commands
HTTP requests
An agent that fetches urls
Files
An agent that writes files
Deployments
An agent that ships code
Customer data
An agent that exports records
Code merges
An agent that merges pull requests
Coding agents (Claude Code, Cursor)
Shell commands
Claude code or cursor running commands
Secrets on disk
The editor touching credentials
Web fetches
The agent fetching urls
Calls in detail: the API reference.
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