[JacobStephens2]

Summary

Records the grill on running thirdshift on more of the employer's (ETA's) VMs. Hosts are named by role, without host names, addresses or accounts, because this repo is public.

 docs/grill-with-docs/
+└── eta-host-expansion.md   # 4 rounds, all answered; findings; #2131 filed from it

Outcome:

preview host     -> joins: Pickup for the app repo (8-59/10) and thirdshift (9-59/10), claude harness
management host  -> disk added; waits for the 2026-11-16 measurement
DB replica, replay, monitoring, staging hosts -> stay out
infra repo       -> stays on the host that holds its state

No code change came out of it, so there are no Specs or Tickets. One thirdshift bug turned up during setup: #2131 (SELinux label after update breaks the Console's systemd unit).

Evidence

Execution evidence

• Before: scripts/affected-tests main, with the file not yet present: nothing to check.
  After: scripts/affected-tests main → No checks for docs-only 'docs/grill-with-docs/eta-host-expansion.md'.
• The setup the file records is live. On the Day shift's Lima VM, thirdshift console fleet list shows preview … live scopes=read,security,act,run,admin thirdshift=0.30.0.

Merge Danger

Door: two-way

Blast Radius: none

One new Markdown file under docs/grill-with-docs/, which no tooling reads.