typescript-sdk/.changeset/cfworker-out-of-barrel.md

@modelcontextprotocol/server	@modelcontextprotocol/client
patch	patch

Stop bundling @cfworker/json-schema into the main package barrel. Previously CfWorkerJsonSchemaValidator was re-exported from the core internal barrel, so tsdown inlined the @cfworker/json-schema dev dependency into every consumer's bundle even when it was never used. The validator is now reachable only via the _shims conditional (workerd/browser) and the explicit @modelcontextprotocol/{server,client}/validators/cf-worker subpath, so consumers that don't opt into it no longer ship that code. No public API change.