feat(key): one file to hand over — handoff bundles the chain and its identities - #573
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Tonight's agent-driven E2EE run stalled at exactly one place: "identityファイルってのがわからなくて積んだ" — the operator had a snapshot, an identity, and a digest, with no supported way to even locate the identity file (it lived unannounced under
run/remote-credentials/).key.sh handoff <team> [--out <file>]writes ONE bundle — the confirmed snapshot chain (every revision) plus the identity for each epoch — prints the latest snapshot's digest for the live out-of-band check, and says what the file is: KEEP SECRET, this file IS the key. After a rotation the same command exports the current chain; there is no "which epoch file" question left.remote.sh unlock <team> --bundle <file> --confirm-digest <sha>unpacks it through the existing validators — chain verification, digest binding to the latest snapshot, import, configure, reprocess, engine start. Digest semantics unchanged. The two-flag form (--snapshot/--identity) stays for advanced use.Security model unchanged: snapshot and identity already traveled the same trusted channel; bundling them changes what the operator has to understand, not what an attacker can do. The digest stays a separate string over a separate live channel — that separation is the mechanism.
SKILL.md, all nine type templates, and remote-setup's Extra section now teach the bundle as the main path. Node 53/53, key bats 26/26 green.
PR opened on the author's behalf — their sandbox blocks GitHub access.