Expanded Typed Responses with GitHub, Mailchimp & Trello - Planning Further Expansion | Composio Changelog

Expanded Typed Responses with GitHub, Mailchimp & Trello - Planning Further Expansion

We've expanded our typed response support to include three major toolkits—GitHub, Mailchimp, and Trello—while also adding more typed actions across previously updated toolkits. All outputs now return strongly typed objects with clear field documentation instead of generic response_data blobs, enabling better IDE support and more reliable agent interactions.

Breaking Change for latest Version

If you're using the latest version and your code depends on the old response_data structure for GitHub, Mailchimp, or Trello, you'll need to update your code to work with the new typed response schemas.

Why This Matters

Enhanced type safety: GitHub, Mailchimp, and Trello now have fully typed responses
Expanded action coverage: More actions in existing toolkits now return typed data
Improved developer experience: Better autocomplete and field validation across all toolkits
Agent-friendly schemas: Cleaner output shapes reduce parsing errors and improve AI tool usage

Coming Soon: 40+ More Toolkits

We're planning to expand typed response coverage to 40+ additional toolkits in upcoming releases.

Feb 3, 2026