The manager module's seal now runs over the audited tweetnacl-sealedbox-js (mesh-catalog anthropic-manager) rather than a hand-transcribed NaCl. Regenerate the fixture's sealed value from that new seal() over the same node key pair and plaintext, so the fixture is the new library's output. crypto_box_seal is randomised, so the blob differs; the wire format does not. TestModuleSealedBoxOpensInGo still opens it under box.OpenAnonymous and recovers the plaintext, proving TS(tweetnacl-sealedbox-js) to Go interop. Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF