v2.6.0

What's New

MCP Output Schema Support

This release adds support for typed output schemas from MCP (Model Context Protocol) tools. When an MCP server provides an outputSchema for a tool, atomic-agents now creates a properly typed Pydantic model instead of using a generic output schema.

Features

• Typed Output Schemas: Tools with MCP-provided outputSchema now generate typed Pydantic models with proper field definitions
• Automatic Schema Detection: The system automatically detects when an MCP tool has an output schema and creates the appropriate typed model
• Backwards Compatible: Tools without outputSchema continue to work exactly as before with the generic result field

Improvements

• Enhanced error handling for structured content parsing with clear error messages
• Added debug logging for JSON parse failures to aid troubleshooting
• Added type validation for structuredContent responses
• Improved documentation for is_output_schema parameter explaining discriminated union usage

Bug Fixes

• Fixed silent failure when structuredContent has unexpected type (now raises TypeError)
• Fixed fallback to generic handling that would fail for typed schemas
• Added type check on content arrays before indexing to prevent errors on non-list types

Full Changelog

v2.5.0...v2.6.0