From 2cf8299fd49c20c28979523bb421551107f5309a Mon Sep 17 00:00:00 2001
From: Mahima Shanware <mahima.shanware@gmail.com>
Date: Wed, 6 May 2026 05:53:15 +0000
Subject: [PATCH] chore: optimize SIGWINCH vision and recovery logic

---
 .gitignore                                 | 1 +
 packages/cli/src/services/UserSimulator.ts | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 85902b4a7c..4e518bc3c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -68,3 +68,4 @@ temp_agents/
 
 # conductor extension and planning directories
 conductor/
+simulator_workspace_*
diff --git a/packages/cli/src/services/UserSimulator.ts b/packages/cli/src/services/UserSimulator.ts
index c9ceb5e5a8..9ce31f045b 100644
--- a/packages/cli/src/services/UserSimulator.ts
+++ b/packages/cli/src/services/UserSimulator.ts
@@ -122,8 +122,9 @@ export class UserSimulator {
       // (e.g. ANSI clear/repaint sequences) before looking at the screen.
       // Increased to 1s to handle high-latency PTYs in Docker.
       // Force a terminal repaint by sending SIGWINCH to the current process.
-      process.kill(process.pid, "SIGWINCH");
-      await new Promise((resolve) => setTimeout(resolve, 1000));
+      debugLogger.log('[SIMULATOR] Sending SIGWINCH to process group to force repaint.');
+      try { process.kill(0, 'SIGWINCH'); } catch (_e) { process.kill(process.pid, 'SIGWINCH'); }
+      await new Promise((resolve) => setTimeout(resolve, 1500));
 
       const screen = this.getScreen();
       if (!screen) return;
@@ -176,8 +177,8 @@ export class UserSimulator {
           
           // RECOVERY: If screen is blank and we are stalled, try a terminal refresh.
           if (normalizedScreen.length === 0 && this.pendingToolCalls.length > 0) {
-             debugLogger.log('[SIMULATOR] Screen is blank but system is BLOCKED. Sending refresh carriage return.');
-             this.stdinBuffer.write('\r');
+             debugLogger.log('[SIMULATOR] Screen is blank but system is BLOCKED. Sending SIGWINCH refresh.');
+             try { process.kill(0, 'SIGWINCH'); } catch (_e) { process.kill(process.pid, 'SIGWINCH'); }
              return;
           }
         } else {