diff --git a/.gitea/workflows/gate.yml b/.gitea/workflows/gate.yml
index 207e29b..9b7e5c1 100644
--- a/.gitea/workflows/gate.yml
+++ b/.gitea/workflows/gate.yml
@@ -44,16 +44,31 @@
 ---
 name: gate
 
+# TRIGGERS — deliberately only `pull_request` into main, plus `push` to main itself.
+#
+# There is NO per-branch push trigger. There used to be a prefix list (feature/** fix/**
+# docs/** chore/**) for "fast feedback on the branch", and it was a net negative here:
+#
+#   * `act_runner` runs at capacity 1. A branch push and its PR fire the SAME gate over the
+#     SAME tree, and the redundant run SERIALISES AHEAD of the PR run — doubling the wall
+#     clock on the one result that actually gates the merge. That cost real time during the
+#     2026-09-29 plex claim, where the loop is racing a short-lived token.
+#   * The list silently did not match this repo's own convention. Branches here are `feat/**`,
+#     which was absent, so the "fast feedback" never fired for the most common prefix anyway —
+#     a mismatch nobody noticed for a month because its only symptom was a MISSING run.
+#     Any hand-maintained prefix list has that failure mode; deleting it removes the class.
+#   * It is redundant. CLAUDE.md already requires `./ci/gate.sh` in the pinned toolbox before
+#     you push (74s locally), and the PR gate re-runs it authoritatively. A third run of the
+#     same checks buys nothing.
+#
+# `push: [main]` is KEPT: post-merge main must still be verified, and it is the only run for
+# which no PR context exists.
 on:
   pull_request:
     branches: [main]
   push:
     branches:
       - main
-      - 'feature/**'
-      - 'fix/**'
-      - 'docs/**'
-      - 'chore/**'
 
 concurrency:
   group: gate-${{ github.ref }}