https://blog.modelcontextprotocol.io/posts/2026-07-28-release-candidate/
The 2026-07-28 MCP Specification Release Candidate | Model Context Protocol Blog
Jul 24, 2026 - The release candidate for the next Model Context Protocol (MCP) specification is now available: a stateless protocol core, the Extensions framework, Tasks, MCP...
model context protocolmcp specification
https://github.github.com/gh-aw/reference/mcp-scripts-specification/
MCP Scripts Specification | GitHub Agentic Workflows
Formal specification for MCP Scripts custom MCP tools following W3C conventions
mcpscriptsspecificationgithubagentic