fix: scope codex blocked prompts to live prompt region

2 files changed, 23 insertions, 6 deletions

diff --git a/src/detect/agents/codex.rs b/src/detect/agents/codex.rs
index e00d0a28..9870bca6 100644
--- a/src/detect/agents/codex.rs
+++ b/src/detect/agents/codex.rs
@@ -1,14 +1,14 @@
 use super::super::{has_confirmation_prompt, has_interrupt_pattern, AgentState};
 
 pub(super) fn detect(content: &str) -> AgentState {
-    let lower = content.to_lowercase();
-
     // Strong blocked patterns are structural Codex UI chrome, so they can win
     // even when the prompt region is visible.
-    if has_codex_strong_blocked_prompt(&lower) {
+    if has_codex_strong_blocked_prompt(content) {
         return AgentState::Blocked;
     }
 
+    let lower = content.to_lowercase();
+
     // Working
     if has_codex_working_status_at_current_prompt(content) {
         return AgentState::Working;
@@ -35,8 +35,7 @@ pub(super) fn detect(content: &str) -> AgentState {
 }
 
 pub(super) fn has_visible_blocker(content: &str) -> bool {
-    let lower = content.to_lowercase();
-    has_codex_strong_blocked_prompt(&lower)
+    has_codex_strong_blocked_prompt(content)
 }
 
 pub(super) fn has_prompt(content: &str) -> bool {
@@ -84,7 +83,15 @@ fn has_codex_visible_working_without_prompt(content: &str) -> bool {
             .is_some_and(codex_live_working_line)
 }
 
-fn has_codex_strong_blocked_prompt(lower_content: &str) -> bool {
+fn has_codex_strong_blocked_prompt(content: &str) -> bool {
+    let lines: Vec<&str> = content.lines().collect();
+    let live_region = lines
+        .iter()
+        .rposition(|line| codex_prompt_line(line))
+        .map(|prompt_index| lines[prompt_index + 1..].join("\n"))
+        .unwrap_or_else(|| content.to_string());
+    let lower_content = live_region.to_lowercase();
+
     lower_content.contains("press enter to confirm or esc to cancel")
         || lower_content.contains("enter to submit answer")
         || lower_content.contains("enter to submit all")
diff --git a/src/detect/mod.rs b/src/detect/mod.rs
index 902ae999..0c7ad943 100644
--- a/src/detect/mod.rs
+++ b/src/detect/mod.rs
@@ -1472,6 +1472,16 @@ mod tests {
     }
 
     #[test]
+    fn codex_replayed_allow_command_text_above_prompt_is_idle() {
+        let screen = "• Ran grep for blockers\n  └ The phrase allow command? appears in our discussion above.\n\n■ Conversation interrupted - tell the model what to do differently. Something went wrong? Hit `/feedback` to report the issue.\n\n\n› Write tests for @filename\n\n  gpt-5.5 high · ~/.herdr/worktrees/herdr/plugin-v1 · plugin-v1 · Context 18% used · 5h 93% left · weekly 71% left";
+        let detection = detect_agent(Some(Agent::Codex), screen);
+
+        assert_eq!(detection.state, AgentState::Idle);
+        assert!(detection.visible_idle);
+        assert!(!detection.visible_blocker);
+    }
+
+    #[test]
     fn codex_generic_confirmation_prompt_is_not_visible_blocker() {
         let detection = detect_agent(
             Some(Agent::Codex),