Recognize GPT‑5 context overflow and trigger condenser (Fixes #776) (#783)

Co-authored-by: openhands <[email protected]>
Co-authored-by: Engel Nyst <[email protected]>

Author: enyst

openhands-sdk/openhands/sdk/llm/exceptions/classifier.py

@@ -13,6 +13,7 @@
     "please reduce the length of",
     "the request exceeds the available context size",
     "context length exceeded",
+    "input exceeds the context window",
 ]
 
 

tests/sdk/llm/test_exception_classifier.py

@@ -19,10 +19,19 @@ def test_is_context_window_exceeded_direct_type():
 
 def test_is_context_window_exceeded_via_text():
     # BadRequest containing context-window-ish text should be detected
-    e = BadRequestError(
+    e1 = BadRequestError(
         "The request exceeds the available context size", MODEL, PROVIDER
     )
-    assert is_context_window_exceeded(e) is True
+    e2 = BadRequestError(
+        (
+            "Your input exceeds the context window of this model. "
+            "Please adjust your input and try again."
+        ),
+        MODEL,
+        PROVIDER,
+    )
+    assert is_context_window_exceeded(e1) is True
+    assert is_context_window_exceeded(e2) is True
 
 
 def test_is_context_window_exceeded_negative():