add thread id property

src/index.py

@@ -8,13 +8,13 @@ from typing import Optional
 
 class CodexAgentConfig(PrecompiledConfig):
     signature: str | type[Signature] = "message:str -> answer:str"
-    working_directory: str = ""
-    model: Optional[str] = None
+    working_directory: str = "."
+    model: Optional[str] = "gpt-4o"
     sandbox_mode: Optional[SandboxMode] = None
     skip_git_repo_check: bool = False
     api_key: Optional[str] = None
     base_url: Optional[str] = None
-    codex_path_override: Optional[str] = None
+    codex_path_override: Optional[str] = "/opt/homebrew/bin/codex"
 
 class CodexAgent(PrecompiledAgent):
     config : CodexAgentConfig
@@ -34,4 +34,16 @@ class CodexAgent(PrecompiledAgent):
         )
     
     def forward(self, **kwargs) -> Prediction:
-        return self.codex_module(**kwargs)
+        return self.codex_module(**kwargs)
+
+    @property
+    def thread_id(self) -> Optional[str]:
+        """Get thread ID for this agent instance.
+
+        The thread ID is assigned after the first forward() call.
+        Useful for debugging and visibility into the conversation state.
+
+        Returns:
+            Thread ID string, or None if no forward() calls have been made yet
+        """
+        return self.codex_module.thread.id