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env-sync-viewer
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Feature

Never a secret value

The database stores 12-character fingerprints, not values. The viewer compares them on the server and sends only the verdict.

env-sync reports a fingerprint per key: the first 12 hex characters of a SHA-256 of the value. The collector stores the expected and actual fingerprint; there is no column for a value.

The viewer builds a minimal fleet view on the server. It holds key names and key states, and never a fingerprint, so the browser cannot see or compare them.

Key names are shown, so a viewer user can see which keys exist on a target.