typescript-sdk/.changeset/stdio-subpath-export.md

@modelcontextprotocol/client	@modelcontextprotocol/server
minor	minor

Move stdio transports to a ./stdio subpath export. Import StdioClientTransport, getDefaultEnvironment, DEFAULT_INHERITED_ENV_VARS, and StdioServerParameters from @modelcontextprotocol/client/stdio, and StdioServerTransport from @modelcontextprotocol/server/stdio. The @modelcontextprotocol/client root entry no longer pulls in node:child_process, node:stream, or cross-spawn, fixing bundling for browser and Cloudflare Workers targets; the @modelcontextprotocol/server root entry drops its node:stream reference. Node.js, Bun, and Deno consumers update the import path; runtime behavior is unchanged.