mcp-serialization-repro

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

claude-codellm-agentsmcpmodel-context-protocolreadonlyhintswe-bench

Created on Feb 12, 2026

Updated on Mar 11, 2026

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55/100

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Add SchemaFlux site scaffold for research page

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Condense README: lead with findings, cut ~60% of text

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Initial commit: MCP tool call parallelism study

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tool-parallelism

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20/20

100%

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51.2%

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27.4%

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4.3%

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Top Contributors

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greynewell

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3

commits

Recent Commits

Add SchemaFlux site scaffold for research page

Grey Newell•1 month ago

476df30View on GitHub

Condense README: lead with findings, cut ~60% of text

Grey Newell•1 month ago

60b011eView on GitHub

Initial commit: MCP tool call parallelism study

Grey Newell•1 month ago

e7d68e9View on GitHub

View all commits

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mcp-serialization-repro

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