fix: detect codex model capacity errors as blocked

src/detect/manifest/tests.rs

@@ -733,6 +733,38 @@ fn codex_osc_title_plain_is_idle() {
     assert!(result.visible_idle);
 }
 
+#[test]
+fn codex_model_capacity_error_is_blocked() {
+    let screen = "⚠ Selected model is at capacity. Please try a different model.\n\n\
+        › Summarize recent commits\n\n\
+        gpt-5.6-sol high · /work · Ready\n";
+    let result = osc_explain(Agent::Codex, screen, "project", "");
+
+    assert_eq!(result.state, AgentState::Blocked);
+    assert_eq!(
+        result.matched_rule.as_ref().map(|r| r.id.as_str()),
+        Some("model_capacity_blocked")
+    );
+    assert!(result.visible_blocker);
+}
+
+#[test]
+fn codex_stale_model_capacity_error_remains_idle() {
+    let screen = "⚠ Selected model is at capacity. Please try a different model.\n\n\
+        • Explored\n\
+        └ Read Cargo.toml\n\n\
+        › Summarize recent commits\n\n\
+        gpt-5.6-sol high · /work · Ready\n";
+    let result = osc_explain(Agent::Codex, screen, "project", "");
+
+    assert_eq!(result.state, AgentState::Idle);
+    assert_eq!(
+        result.matched_rule.as_ref().map(|r| r.id.as_str()),
+        Some("osc_title_idle")
+    );
+    assert!(result.visible_idle);
+}
+
 #[test]
 fn codex_background_terminal_screen_does_not_override_osc_idle() {
     // Background terminal tasks can be long-lived helpers such as dev servers.

src/detect/manifests/codex.toml

@@ -1,7 +1,7 @@
 id = "codex"
-version = "2026.07.18.1"
+version = "2026.08.05.1"
 min_engine_version = 2
-updated_at = "2026-07-18T00:00:00Z"
+updated_at = "2026-08-05T00:00:00Z"
 
 [[rules]]
 id = "osc_title_blocked"
@@ -11,6 +11,14 @@ region = "osc_title"
 visible_blocker = true
 contains = ["Action Required"]
 
+[[rules]]
+id = "model_capacity_blocked"
+state = "blocked"
+priority = 1090
+region = "bottom_non_empty_lines(3)"
+visible_blocker = true
+contains = ["Selected model is at capacity. Please try a different model."]
+
 [[rules]]
 id = "osc_title_working"
 state = "working"

website/agent-detection/codex.toml

@@ -1,7 +1,7 @@
 id = "codex"
-version = "2026.07.18.1"
+version = "2026.08.05.1"
 min_engine_version = 2
-updated_at = "2026-07-18T00:00:00Z"
+updated_at = "2026-08-05T00:00:00Z"
 
 [[rules]]
 id = "osc_title_blocked"
@@ -11,6 +11,14 @@ region = "osc_title"
 visible_blocker = true
 contains = ["Action Required"]
 
+[[rules]]
+id = "model_capacity_blocked"
+state = "blocked"
+priority = 1090
+region = "bottom_non_empty_lines(3)"
+visible_blocker = true
+contains = ["Selected model is at capacity. Please try a different model."]
+
 [[rules]]
 id = "osc_title_working"
 state = "working"