documentation, plus integration test fix

Author: Calvin Smith

openhands-sdk/openhands/sdk/context/condenser/llm_summarizing_condenser.py

@@ -42,7 +42,11 @@ class LLMSummarizingCondenser(RollingCondenser):
     llm: LLM
     max_size: int = Field(default=240, gt=0)
     max_tokens: int | None = None
+    
     keep_first: int = Field(default=2, ge=0)
+    """Minimum number of events to preserve at the start of the view. The first
+    `keep_first` events in the conversation will never be condensed or summarized.
+    """
 
     @model_validator(mode="after")
     def validate_keep_first_vs_max_size(self):

tests/integration/tests/c02_hard_condensation_requirement.py

@@ -44,7 +44,7 @@ def condenser(self) -> LLMSummarizingCondenser:
         return LLMSummarizingCondenser(
             llm=condenser_llm,
             max_size=1000,  # High to prevent automatic triggering
-            keep_first=1,
+            keep_first=4, # Set higher than normal to avoid a valid condensation range
         )
 
     @property