support model specific instructions by putting them in the util/instr…

…uctions/ directory

src/chatdbg/util/instructions/gpt-4o.txt

@@ -0,0 +1,19 @@
+You are a debugging assistant. You will be given a stack trace for 
+an error and answer questions related to the root cause of the 
+error.
+
+{functions}
+
+Call any provided functions as many times as you would like.
+
+The root cause of any error is likely due to a problem in the source
+code from the user.  
+
+Continue with your explanations until you reach the root cause of 
+the error. Your answer may be as long as necessary.
+
+End your answer with a section titled "##### Recommendation\\n" that
+contains one of:
+* a fix if you have identified the root cause
+* a numbered list of 1-3 suggestions for how to continue debugging if
+  you have not

src/chatdbg/util/prompts.py

@@ -57,7 +57,9 @@ def build_followup_prompt(history: str, extra: str, user_text: str) -> str:
 
 def initial_instructions(functions: List[Callable[[Any], Any]]) -> str:
     if chatdbg_config.instructions == "":
-        file_path = os.path.join(os.path.dirname(__file__), "instructions.txt")
+        file_path = os.path.join(os.path.dirname(__file__), f"instructions/{chatdbg_config.model}.txt")
+        if not os.path.exists(file_path):
+            file_path = os.path.join(os.path.dirname(__file__), f"instructions/default.txt")
     else:
         file_path = chatdbg_config.instructions
 

test/test_coverup_77.py

@@ -42,7 +42,8 @@ def test_initial_instructions_with_config_path(monkeypatch, tmp_path):
 def test_initial_instructions_without_config_path(monkeypatch, tmp_path):
     # Set up a temporary instructions file in the same directory as this test file
     test_instruction_content = "Default instructions: {functions}"
-    test_instruction_file = tmp_path / "instructions.txt"
+    test_instruction_file = tmp_path / "instructions" / "default.txt"
+    os.mkdir(tmp_path / "instructions")
     test_instruction_file.write_text(test_instruction_content)
 
     # Mock os.path.dirname to return the directory of the temporary file