Address duplicate registration at the source, not just via cleanup. Root
cause now grounded: agent_id is a random UUID (config.rs:90 generate_agent_id)
persisted only in the config file, so a portable/misconfigured execution
(the Pavon desktop launcher) regenerates a fresh id each launch, defeating
both the DB upsert (ON CONFLICT agent_id) and session-reuse dedupe. Add a
deterministic machine_uid (Windows MachineGuid-based, recomputable) keyed by
registration; reaping/supersede become defense-in-depth. Security: machine_uid
is identity not authorization and must be bound to the per-machine agent key
to prevent session/record hijack. Requested by Mike 2026-05-30.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Mike Swanson
f8bd4d1dab