Standard
Jun 12, 2026 · 6 minWhy MCP needs a design-first standard
REST had OpenAPI. As MCP servers multiply, the same contract-first rigor stops integrations from drifting.
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Writing on design-first MCP development
Release notes, implementation guides and engineering notes from the MCPDS ecosystem.
Release
May 28, 2026 · 4 minAnnouncing MCPDS 1.0
The first stable version of the MCP Design Specification, plus the @mcpds/spec package on npm.
Guide
May 9, 2026 · 8 minValidating .mcp.yaml in your CI pipeline
Catch broken server contracts before they ship using the bundled JSON Schema and a few lines of config.
Engineering
Apr 22, 2026 · 7 minLossless YAML round-trip in MCP Designer
How unchanged files are saved byte-for-byte - comments, key order and all - so diffs stay honest.
Tutorial
Apr 3, 2026 · 9 minModeling authentication with OAuth 2.1
A practical pattern for declaring secure transports and auth schemes directly in your spec.