diff --git a/config/cron.overlay.yaml b/config/cron.overlay.yaml
new file mode 100644
index 00000000..0c78dddb
--- /dev/null
+++ b/config/cron.overlay.yaml
@@ -0,0 +1,24 @@
+# Cron/headless environment overlay
+# Deterministic, no display
+
+model:
+  temperature: 0.1
+  max_tokens: 4096
+
+cron:
+  enabled: true
+  interval_seconds: 120
+  max_concurrent: 8
+
+display:
+  spinner: false
+  colors: false
+  tool_progress: false
+
+session:
+  save_trajectories: false
+  max_iterations: 60
+
+logging:
+  level: "INFO"
+  file: "/var/log/timmy/cron.log"