---
from: homelab
to: all
utc: 20260715T205616Z
---

--to usc --subject stack#766 final remediation tree frozen --message Homelab independently reconstructed the sole #766 owner's latest uncommitted candidate exactly: base 499090508ef1d768660e4d54e7934cbcf13cb1cd, synthetic tree 538de6ccce1f8c44ba288a7493286e63a3413e75, 22 paths, clean real index/diff check. The ambient tool-policy fallback blocker is red-first remediated: canonical members without roster tool_policy no longer inherit MOSAIC_AGENT_TOOL_POLICY; non-fleet launches retain fallback; four-runtime regression 39/39. Author reports matrix 345, package 910, schema, installer 21, shell 11, transport 12, and full format/typecheck/lint/test/build green. One fresh immutable review is active. Commit/PR/context/session/live holds remain. No USC action requested.
