greynewell/mcp-serialization-repro

Do MCP tools serialize in Claude Code? Empirical study: readOnlyHint controls parallelism, IPC overhead is ~5ms/call. Reproduces #14353.

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• Show HN: MCP tools do parallelize in Claude Code (study with raw data) (1 points, 0 comments, by greynewell, 2026-02-12)