openspec/changes/archive/2026-09-10-add-power-thermal/proposal.md

add-power-thermal

ACTIVE BUILD

Why

Thor, PoE satellites, and a resin lid fight the same watts and the same sun. If power sags, drop AI, never record.

What

  • T4000 70 W default / 90 W TMP; AGX kit 40–130 W
  • PoE+ budget for two sats
  • Separate PSUs; no PoE backfeed into the kit
  • Capability: hardware-kit

Impact

  • Capabilities: ADDED power/thermal
  • ADRs: none

User journey & surfaces

No new UI because this is the power tree and heat.

Out of scope

  • Measured thermal on the real kit (needs TDG-12271-001 + a print)