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mcpengine/infra/factory-tools/mcp-validator/CHANGELOG.md
Jake Shore f3c4cd817b Add all MCP servers + factory infra to MCPEngine — 2026-02-06 
=== NEW SERVERS ADDED (7) ===
- servers/closebot — 119 tools, 14 modules, 4,656 lines TS (Stage 7)
- servers/google-console — Google Search Console MCP (Stage 7)
- servers/meta-ads — Meta/Facebook Ads MCP (Stage 8)
- servers/twilio — Twilio communications MCP (Stage 8)
- servers/competitor-research — Competitive intel MCP (Stage 6)
- servers/n8n-apps — n8n workflow MCP apps (Stage 6)
- servers/reonomy — Commercial real estate MCP (Stage 1)

=== FACTORY INFRASTRUCTURE ADDED ===
- infra/factory-tools — mcp-jest, mcp-validator, mcp-add, MCP Inspector
  - 60 test configs, 702 auto-generated test cases
  - All 30 servers score 100/100 protocol compliance
- infra/command-center — Pipeline state, operator playbook, dashboard config
- infra/factory-reviews — Automated eval reports

=== DOCS ADDED ===
- docs/MCP-FACTORY.md — Factory overview
- docs/reports/ — 5 pipeline evaluation reports
- docs/research/ — Browser MCP research

=== RULES ESTABLISHED ===
- CONTRIBUTING.md — All MCP work MUST go in this repo
- README.md — Full inventory of 37 servers + infra docs
- .gitignore — Updated for Python venvs

TOTAL: 37 MCP servers + full factory pipeline in one repo.
This is now the single source of truth for all MCP work.
2026-02-06 06:32:29 -05:00

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Changelog

All notable changes to the MCP Validator will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.3.0] - 2025-01-21

Added

  • OAuth 2.1 Authentication Framework: Complete implementation for 2025-06-18 protocol
    • Bearer token extraction and validation from Authorization headers
    • WWW-Authenticate headers for 401 responses with authentication challenges
    • Resource server capabilities in reference HTTP server
    • MCP-Protocol-Version header support for protocol negotiation
    • CORS support, origin validation, and DNS rebinding attack prevention
    • Environment variable configuration for OAuth settings
  • GitHub Actions Templates: Production-ready CI/CD workflows
    • http-validation.yml for HTTP-based MCP servers
    • stdio-validation.yml for STDIO-based MCP servers
    • Multi-protocol testing (2025-03-26 and 2025-06-18)
    • OAuth 2.1 authentication testing support
    • Automated PR comments with detailed compliance reports
    • 3-step setup process with comprehensive documentation
  • Enhanced Test Coverage: Achieved 70% coverage for 2025-06-18 protocol module
    • 16 comprehensive test cases for 2025-06-18 features
    • OAuth capability negotiation and token handling tests
    • Structured tool output validation tests
    • Batch request rejection tests
    • Elicitation support framework tests
    • End-to-end workflow testing from initialization to tool execution
  • JSON Schema: Complete mcp_schema_2025-06-18.json with OAuth 2.1 requirements
  • Production-Ready Reference Server: Enhanced HTTP server with OAuth 2.1 resource server capabilities

Changed

  • HTTP Transport: Major improvements for 2025-06-18 protocol
    • Fixed session ID extraction from response body and URL parameters
    • Added MCP-Protocol-Version header to all requests
    • Improved URL construction for /messages endpoint
    • Enhanced error handling with structured responses
    • Fixed initialization request format for 2025-06-18
  • Protocol Adapters: Enhanced 2025-06-18 adapter with OAuth token handling
  • CLI Tools: Updated all commands to default to 2025-06-18 protocol
  • Documentation: Comprehensive updates with OAuth 2.1 setup and GitHub Actions guidance

Fixed

  • Reference HTTP Server: Fixed undefined server variable (lines 617 and 676)
  • Session Management: Corrected session ID extraction and URL parameter handling
  • Unit Tests: Resolved missing TransportError class causing test failures
  • CLI Tests: Fixed protocol version expectations for 2025-06-18 default
  • Transport Layer: Fixed initialization flow and notification handling

Security

  • OAuth 2.1 Compliance: Full RFC 6749, RFC 6750, and OAuth 2.1 draft compliance
  • Bearer Token Validation: Secure token extraction and validation
  • Origin Validation: DNS rebinding attack prevention
  • CORS Support: Proper cross-origin resource sharing configuration

[0.2.0] - 2025-01-11

Added

  • MCP Protocol 2025-06-18 Support: Full implementation of the latest MCP specification
    • Structured tool output with content arrays and structuredContent fields
    • Elicitation support for server-initiated user interactions
    • Enhanced error handling with structured error responses
    • Tool schema improvements with inputSchema, outputSchema, and title fields
  • JSON-RPC Batching Restrictions: Proper rejection of batch requests in 2025-06-18 protocol
  • New Test Cases: 7 additional test cases specifically for 2025-06-18 features
    • test_structured_tool_output: Validates structured tool response format
    • test_elicitation_support: Tests elicitation capability framework
    • test_no_batch_requests: Ensures batch requests are properly rejected
    • test_enhanced_error_handling: Verifies improved error response structure
    • test_resource_lifecycle: Tests resource management improvements
    • test_tool_output_validation: Validates stricter tool output requirements
    • test_session_management: Tests enhanced session handling
  • Enhanced Reference HTTP Server: Updated to support all three protocol versions (2024-11-05, 2025-03-26, 2025-06-18)
    • Backward compatibility with older protocol versions
    • Protocol-specific response formatting
    • Dynamic feature detection based on negotiated protocol version

Changed

  • Default Protocol Version: Updated default from 2025-03-26 to 2025-06-18 across all CLI tools
  • Tool Response Format: Enhanced tool result structure for 2025-06-18 compatibility
  • Error Response Structure: Improved error messages and categorization
  • Test Coverage: Expanded test suite to cover new protocol features
  • Documentation: Updated README with 2025-06-18 examples and feature descriptions

Backward Compatibility

  • All existing protocol versions (2024-11-05, 2025-03-26) remain fully supported
  • Automatic protocol version detection and handling
  • Legacy tool response formats maintained for older protocols

[0.1.0] - 2023-07-15

Added

  • Initial public release
  • Support for testing MCP protocol versions 2024-11-05 and 2025-03-26
  • Minimal reference implementation for STDIO transport
  • Minimal reference implementation for HTTP transport
  • Comprehensive test suite for protocol compliance
  • Dynamic tool testing
  • Timeout handling for problematic servers
  • Detailed compliance reporting
  • Support for pip-installed MCP servers

Changed

  • Improved timeout handling for problematic servers
  • Enhanced reporting format with more detailed diagnostics
  • Streamlined test execution with better progress indicators

Fixed

  • Properly handle servers that don't implement shutdown method
  • Timeout gracefully for servers with tool list issues
  • Correctly display status for skipped tests in reports