- Status: done
- Date: 2026-10-01
- Specs touched:
BRAIN_HOST_PROTOCOL.md,CLAUDE.md,docs/progress/README.md
A docs-only sweep after os-package-lock.md (#560), which closed the second slice of #486. It fixes three statements that #559 and #560 made wrong. Each sits in a doc the next slices (#561, #563) read first.
CLAUDE.md. The host-agent bullet listed apt as "not wired yet"; apt is no longer planned, so it now names the A/B OS update (#486) instead. The cloud-image paragraph gains one sentence on the two release lines from #559: dispatch takespublish_osandpublish_control_planeto publish one line, and nothing published is overwritten.BRAIN_HOST_PROTOCOL.md# Versioning was "lockstep with OS release: brain version N talks to host-agent version N". After #559 the two are on separate lines, so the section now describes what holds: the brain'sminimumAgentVersionfloor, with no negotiation. The scope list no longer names apt as a host-agent job, and the boundary reads "the OS slots" instead of "apt".docs/progress/README.md# Up next gains the A/B OS update as item 1, with #561 as the next slice.
DECISIONS.md 2026-10-01 (the version split, stream A as an A/B image). No decision changes.
- The "designed, not built (#486)" sections in
UPDATES.md,BUILD.md# 1b,ENVIRONMENT.mdandSTORAGE.mdare left as they are on purpose: each slice flips its own part to "as built".
- #561, the hosted image in the A/B layout.