The docs say this, what does open world mean exactly? Just full CRUD? https://cdn.discordapp.com/attachments/1499364415831674920/1499364416477724782/Screenshot_2026-04-30_at_11.58.33_AM.png?ex=69f4876d&is=69f335ed&hm=43e55640155aa012b562d09603093e8bf1edc9231c2e55218295c8d93dd14792&

Hey Chip, On "**open world**": it's an MCP-spec annotation (openWorldHint), not about CRUD. It means the tool may interact with entities outside a known/bounded environment — third-party APIs, sending emails, posting to external services. A tool with openWorldHint: true (the default) can reach the broader internet; one with false only operates within a closed, predefined set (e.g. reading from a specific local DB table). It's a signal to the orchestrator about the tool's potential blast radius, not a CRUD descriptor. On disabling premium tools: no single toggle, but you can list them in the session config. The 5 premium toolkit slugs today are

composio_search

,

perplexityai

,

exa

,

serpapi

, `codeinterpreter`:

session = composio.create(
    user_id="user_123",
    toolkits={"disable": ["composio_search", "perplexityai", "exa", "serpapi", "codeinterpreter"]}
)

Full toolkit-control docs: https://docs.composio.dev/docs/toolkits/enable-and-disable-toolkits