Implements the new optional message field for progress notifications as
defined in the MCP specification update. This allows servers to provide
descriptive status updates alongside progress values.
Changes:
- Add optional message field to ProgressSchema in types.ts
- Add tests for progress notifications with message field
- Update protocol tests to verify message field handling
Refs: https://github.com/modelcontextprotocol/modelcontextprotocol/pull/197🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Remove tool() overload that takes a config object with callback
- Add new registerTool() method that separates config from callback
- Extract common tool registration logic into _createRegisteredTool() helper
- Update all tests to use registerTool() for tools with output schemas
- Update examples to use registerTool() and high-level Client API
- Add comment noting that output schema validation only works with high-level API
This change improves API clarity by using a distinct method for tools with
output schemas while maintaining backward compatibility.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Update McpServer to support registering tools with outputSchema
- Add automatic content generation from structuredContent for backward compatibility
- Add validation to ensure proper usage of structuredContent vs content
- Add comprehensive tests for outputSchema functionality
- Add example servers demonstrating structured output usage
- Update existing test to match new backward compatibility behavior
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add outputSchema support to Tool interface with proper documentation
- Split CallToolResult into structured and unstructured variants
- Change structuredContent from string to object type
- Add validation that tools without outputSchema cannot return structuredContent
- Add validation that tools with outputSchema must return structuredContent
- Update client to validate structured content as object (no JSON parsing)
- Update tests to use object format for structuredContent
- Add tests for new validation constraints
- Update LATEST_PROTOCOL_VERSION to DRAFT-2025-v2
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add outputSchema field to Tool type and RegisteredTool interface
- Make content field optional in CallToolResult
- Update ListToolsRequestSchema handler to include outputSchema in tool list responses
- Add support for structuredContent in tool results
- Update examples to handle optional content field
- Add tests for new outputSchema and structuredContent functionality
- Update ToolCallback documentation to clarify when to use structuredContent vs content
This change enables tools to define structured output schemas and return
structured JSON content, providing better type safety and validation for
tool outputs.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Request handlers were being re-registered every time a new tool/resource/prompt was added, which would fail since the handlers were already registered. Now we track whether handlers have been initialized and only register them once.
Added tests to verify that multiple registrations work correctly.
Resolves#124.
