diff --git a/codex-rs/core/src/chat_completions.rs b/codex-rs/core/src/chat_completions.rs
index 8497331d94..ddbc392339 100644
--- a/codex-rs/core/src/chat_completions.rs
+++ b/codex-rs/core/src/chat_completions.rs
@@ -37,10 +37,7 @@ pub(crate) async fn stream_chat_completions(
     // Build messages array
     let mut messages = Vec::<serde_json::Value>::new();
 
-    let instr_cfg = crate::client_common::InstructionsConfig::for_model(
-        model,
-        include_plan_tool,
-    );
+    let instr_cfg = crate::client_common::InstructionsConfig::for_model(model, include_plan_tool);
     let full_instructions = prompt.get_full_instructions(&instr_cfg);
     messages.push(json!({"role": "system", "content": full_instructions}));
 
diff --git a/codex-rs/core/src/config.rs b/codex-rs/core/src/config.rs
index d45fe2a194..f7f159e5bb 100644
--- a/codex-rs/core/src/config.rs
+++ b/codex-rs/core/src/config.rs
@@ -671,8 +671,14 @@ mod tests {
             unknown_gpt_overrides,
             fixture.codex_home(),
         )?;
-        assert!(unknown_gpt_cfg.include_plan_tool, "plan tool should default to ON for unknown GPT-like models");
-        assert!(unknown_gpt_cfg.model_supports_reasoning_summaries, "reasoning summaries should default to ON for unknown GPT-like models");
+        assert!(
+            unknown_gpt_cfg.include_plan_tool,
+            "plan tool should default to ON for unknown GPT-like models"
+        );
+        assert!(
+            unknown_gpt_cfg.model_supports_reasoning_summaries,
+            "reasoning summaries should default to ON for unknown GPT-like models"
+        );
 
         // Unknown non-GPT model -> defaults OFF for both.
         let unknown_non_gpt_overrides = ConfigOverrides {
@@ -705,7 +711,10 @@ mod tests {
             known_overrides,
             fixture.codex_home(),
         )?;
-        assert!(!known_cfg.include_plan_tool, "plan tool should default to OFF for known models");
+        assert!(
+            !known_cfg.include_plan_tool,
+            "plan tool should default to OFF for known models"
+        );
         assert!(
             !known_cfg.model_supports_reasoning_summaries,
             "reasoning summaries override should default to OFF for known models"