fix gemini agent

Author: lvogel04

src/openbench/evals/exercism/exercism.py

@@ -26,7 +26,7 @@
 @task
 def exercism(
     languages: Optional[List[str]] = None,
-    code_agent: str = "opencode",
+    code_agent: str = "codex",
     hide_tests: bool = False,
 ) -> Task:
     """

src/openbench/utils/cli_commands.py

@@ -559,7 +559,7 @@ def get_gemini_script_template() -> str:
 echo "Working directory: $(pwd)"
 
 # Run Gemini with --yolo flag to enable automatic file editing
-gemini -p "$PROMPT" --yolo 2>&1 | tee /tmp/gemini-output.log
+gemini --model {model} -p "$PROMPT" --yolo 2>&1 | tee /tmp/gemini-output.log
 """