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mcp/harbor
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once MCP

v0.2.1

io.github.aurumflux20/once-kernel

Run a side effect exactly once under retries, redelivery, and concurrent workers.

transport:stdio runtime:pypi
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Target client

run in your project directory 

claude mcp add once-kernel -- uvx once-kernel

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.