diff --git a/apps/github-runner/github-runner.yaml b/apps/github-runner/github-runner.yaml
index 4109c9c..cdc91e4 100644
--- a/apps/github-runner/github-runner.yaml
+++ b/apps/github-runner/github-runner.yaml
@@ -1698,7 +1698,12 @@ metadata:
     flowercore.io/runner-repo: tts-reader
     flowercore.io/github-repo: FlowerCore.TtsReader
 spec:
-  replicas: 1
+  # Scaled to 0 2026-06-16: this runner was crash-looping (329 restarts) and
+  # consuming memory on the over-pressured old cluster (agent1 ~81%), which was
+  # contributing to Blazor circuit drops on ttsreader/chat. It provides no
+  # working CI in this state. Restore to 1 once the runner is fixed (or the repo
+  # CI moves to the GX10 / a working runner).
+  replicas: 0
   selector:
     matchLabels:
       app.kubernetes.io/name: github-runner-tts-reader