PromptSign – Sigstore signing and verification for AI instruction files

Show HN: PromptSign – Sigstore signing and verification for AI instruction files

PromptSign – Sigstore signing and verification for AI instruction files is a company in show hn launch.

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I built PromptSign after finding some useful-looking AI skills on the Internet and realizing I couldn't really know where they came from. In particular, I could not answer:1) Who created the skill?2) Is what I'm invoking right now really what I installed in the first place?3) Is this update from the same source as the original?4) What if I only wanted to install by reputation i.e. to whitelist certain skill publishers and ignore everyone else?AI instructions are markdown files, freely modifiable after install. The only check I could find was once at install against a digest in the marketplace manifest that the publisher controls.In short, there was no permanent AI skill "identity".How it wor

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Website: promptsign.ai