From b194617d00981d8ea850f100ed262698090963da Mon Sep 17 00:00:00 2001
From: 0z! <162235745+0z1-ghb@users.noreply.github.com>
Date: Tue, 28 Apr 2026 16:43:55 +0300
Subject: [PATCH] fix(context_compressor): off-by-one in tail protection for
 short conversations

---
 agent/context_compressor.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/agent/context_compressor.py b/agent/context_compressor.py
index c91c0c15..21f07df4 100644
--- a/agent/context_compressor.py
+++ b/agent/context_compressor.py
@@ -538,7 +538,7 @@ class ContextCompressor(ContextEngine):
             # Token-budget approach: walk backward accumulating tokens
             accumulated = 0
             boundary = len(result)
-            min_protect = min(protect_tail_count, len(result) - 1)
+            min_protect = min(protect_tail_count, len(result))
             for i in range(len(result) - 1, -1, -1):
                 msg = result[i]
                 raw_content = msg.get("content") or ""