diff --git a/AGENTS.md b/AGENTS.md
index e6519a0..d41b62f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -467,10 +467,11 @@ commit bodies when `[#NNN]` is present) is tracked under [#441].
 
 **Every gitea repo runs CI via Gitea Actions.** Runner:
 `ukrrs-pfv-gitea-runner` (act_runner 0.2.13, compose at
-`~/projects/ukrrs/ci/gitea-runner/` on the pfv workstation). Repo duty:
-carry `.gitea/workflows/ci.yml` — lint for the repo's language (pinned
-container images, never `:latest`) + a secret-scan step, on `dev` and
-`release` pushes. Branch model: `dev` = WIP (CI must pass), `release` =
+`~/projects/ukrrs/ci/gitea-runner/` on the pfv workstation) — **label
+`ultix` ONLY**; workflows must use `runs-on: ultix` or they queue forever.
+Repo duty: carry `.gitea/workflows/ci.yml` — lint for the repo's language
+(pinned container images, never `:latest`) + a secret-scan step, on `dev`
+and `release` pushes. Branch model: `dev` = WIP (CI must pass), `release` =
 production/deploy branch (CI is the final gate).
 Full standard: [Discourse topic #333](https://community.turnsys.com/t/333).
 Tracking: [#784](https://projects.knownelement.com/issues/784).