Adjust token/bytes ratio to resolve errors on swebench-lite.

ra_aid/agents/ciayn_agent.py

@@ -252,7 +252,7 @@ Output **ONLY THE CODE** and **NO MARKDOWN BACKTICKS**"""
     def _estimate_tokens(content: Optional[Union[str, BaseMessage]]) -> int:
         """Estimate number of tokens in content using simple byte length heuristic.
 
-        Estimates 1 token per 3 bytes of content. For messages, uses the content field.
+        Estimates 1 token per 2.0 bytes of content. For messages, uses the content field.
 
         Args:
             content: String content or Message object to estimate tokens for
@@ -275,7 +275,7 @@ Output **ONLY THE CODE** and **NO MARKDOWN BACKTICKS**"""
         if not text:
             return 0
 
-        return len(text.encode("utf-8")) // 3
+        return len(text.encode("utf-8")) // 2.0
 
     def _trim_chat_history(
         self, initial_messages: List[Any], chat_history: List[Any]

tests/ra_aid/agents/test_ciayn_agent.py

@@ -108,7 +108,7 @@ def test_trim_chat_history_empty_chat(agent):
 
 def test_trim_chat_history_token_limit():
     """Test trimming based on token limit."""
-    agent = CiaynAgent(Mock(), [], max_history_messages=10, max_tokens=20)
+    agent = CiaynAgent(Mock(), [], max_history_messages=10, max_tokens=25)
 
     initial_messages = [HumanMessage(content="Initial")]  # ~2 tokens
     chat_history = [
@@ -146,7 +146,7 @@ def test_trim_chat_history_no_token_limit():
 
 def test_trim_chat_history_both_limits():
     """Test trimming with both message count and token limits."""
-    agent = CiaynAgent(Mock(), [], max_history_messages=3, max_tokens=15)
+    agent = CiaynAgent(Mock(), [], max_history_messages=3, max_tokens=35)
 
     initial_messages = [HumanMessage(content="Init")]  # ~1 token
     chat_history = [

tests/ra_aid/test_llm.py

@@ -127,13 +127,13 @@ def test_estimate_tokens():
     assert CiaynAgent._estimate_tokens("") == 0
 
     # Test string content
-    assert CiaynAgent._estimate_tokens("test") == 1  # 4 bytes
-    assert CiaynAgent._estimate_tokens("hello world") == 3  # 11 bytes
-    assert CiaynAgent._estimate_tokens("🚀") == 1  # 4 bytes
+    assert CiaynAgent._estimate_tokens("test") == 2  # 4 bytes
+    assert CiaynAgent._estimate_tokens("hello world") == 5  # 11 bytes
+    assert CiaynAgent._estimate_tokens("🚀") == 2  # 4 bytes
 
     # Test message content
     msg = HumanMessage(content="test message")
-    assert CiaynAgent._estimate_tokens(msg) == 4  # 11 bytes
+    assert CiaynAgent._estimate_tokens(msg) == 6  # 11 bytes
 
 
 def test_initialize_openai(clean_env, mock_openai):