MCP SDK v2 protocol and strict inputs
- HTTP endpoints serve protocol revision 2026-07-28 with the 2025-era compatibility path; undeclared root inputs are rejected and structured tool errors validate client-side.
- HTTP deployments explicitly use stateless sessions, and downstream retry calls preserve the complete request context.
- Synced framework skills, MCP linters, MCPB author metadata, and Bun 1.4 multi-architecture build configuration.
- deps:
@cyanheads/mcp-ts-core^0.11.5 → ^0.12.3 (+ dev-tool updates)