From 3a8532bb301d6b30bd2e65f73b9fb18b8d09f155 Mon Sep 17 00:00:00 2001
From: sol <sol@eeqj.de>
Date: Sat, 7 Mar 2026 18:52:44 +0000
Subject: [PATCH] fix: re-detect sessions after idle cleanup

Added forgetSession() to SessionMonitor. When watcher marks a session
idle/done, it now clears the key from the monitor's known sessions map.
Next poll cycle re-detects the session if the transcript is still active,
creating a fresh status post.
---
 src/session-monitor.js | 9 +++++++++
 src/watcher-manager.js | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/session-monitor.js b/src/session-monitor.js
index ddaad1c..e0f337a 100644
--- a/src/session-monitor.js
+++ b/src/session-monitor.js
@@ -67,6 +67,15 @@ class SessionMonitor extends EventEmitter {
     if (this.logger) this.logger.info('SessionMonitor stopped');
   }
 
+  /**
+   * Remove a session from known sessions so it can be re-detected on next poll.
+   * Called when the watcher marks a session as idle/done.
+   * @param {string} sessionKey
+   */
+  forgetSession(sessionKey) {
+    this._knownSessions.delete(sessionKey);
+  }
+
   /**
    * Get all agent directories under transcriptDir.
    * @private
diff --git a/src/watcher-manager.js b/src/watcher-manager.js
index b5a86e0..b334bf7 100644
--- a/src/watcher-manager.js
+++ b/src/watcher-manager.js
@@ -339,9 +339,10 @@ async function startDaemon() {
       logger.warn({ sessionKey, err: unpinErr }, 'Failed to unpin status post');
     }
 
-    // Clean up
+    // Clean up — remove from all tracking so session can be re-detected if it becomes active again
     activeBoxes.delete(sessionKey);
     watcher.removeSession(sessionKey);
+    monitor.forgetSession(sessionKey);
     globalMetrics.activeSessions = activeBoxes.size;
 
     // Persist final offsets