Emergency Action Protocol

Goal

Give the agent a specific elevated capability — network isolation, process killing, memory dump taking — for several minutes without giving the agent permanent root privileges.

Levels

Level	TTL	Auto?	Actions
1	2 min	Auto if confidence > 0.95	IsolateNetwork · KillProcess · MemoryDump
2	5 min	Auto after 3 minutes if no ack	StopService · QuarantineFile
3	15 min	Always human approval required	InstallPackage · Reboot · RunPlaybook

Verification Chain (agent side)

1. TTL — now ≤ expires_at and (expires_at - issued_at) ≤ 900.
2. Addressing — agent_id = own ID.
3. Anti-replay — nonce must not be in the used_nonces table.
4. Signature — Ed25519, verified against the baked-in public key in the binary.
5. Marking — add nonce to used_nonces before execution.

Key Management

• One-time generation: bash scripts/gen-emergency-keypair.sh.
• Private key is only stored in HUB_EMERGENCY_PRIVATE_KEY on the hub.
• Public key is baked into the agent via build.rs at compile time.
• Rotate annually with 24-hour overlap.