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A single-use authorization boundary in Rust

I built a small Rust experiment for putting an authorization boundary in front of a protected action. An authorization is tied to a specific action, resource, and payload. Once it's used successfully, trying to use …

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I built a small Rust experiment for putting an authorization boundary in front of a protected action. An authorization is tied to a specific action, resource, and payload. Once it's used successfully, trying to use the same authorization again is denied. The repo includes the implementation, tests, and reproduction steps. https://github.com/trencinodin-stack/arcstone-mcp-sidecar I'm interested in edge cases or failure modes I've missed.

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  1. Show HN

    Sep 25, 2026 · 1 observations

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