fix(agent): honor configured default temperature (#3167)

src/agent/loop_.rs

@@ -1808,7 +1808,7 @@ pub async fn run(
     message: Option<String>,
     provider_override: Option<String>,
     model_override: Option<String>,
-    temperature: f64,
+    temperature: Option<f64>,
     peripheral_overrides: Vec<String>,
     interactive: bool,
 ) -> Result<String> {
@@ -1881,6 +1881,7 @@ pub async fn run(
         .as_deref()
         .or(config.default_model.as_deref())
         .unwrap_or("anthropic/claude-sonnet-4");
+    let temperature = temperature.unwrap_or(config.default_temperature);
 
     let provider_runtime_options = providers::ProviderRuntimeOptions {
         auth_profile_override: None,

src/cron/scheduler.rs

@@ -173,7 +173,7 @@ async fn run_agent_job(
                 Some(prefixed_prompt),
                 None,
                 model_override,
-                config.default_temperature,
+                Some(config.default_temperature),
                 vec![],
                 false,
             )

src/daemon/mod.rs

@@ -272,7 +272,7 @@ async fn run_heartbeat_worker(config: Config) -> Result<()> {
                 Some(prompt),
                 None,
                 None,
-                temp,
+                Some(temp),
                 vec![],
                 false,
             )

src/main.rs

@@ -195,8 +195,8 @@ Examples:
         model: Option<String>,
 
         /// Temperature (0.0 - 2.0)
-        #[arg(short, long, default_value = "0.7", value_parser = parse_temperature)]
-        temperature: f64,
+        #[arg(short, long, value_parser = parse_temperature)]
+        temperature: Option<f64>,
 
         /// Attach a peripheral (board:path, e.g. nucleo-f401re:/dev/ttyACM0)
         #[arg(long)]
@@ -2235,6 +2235,44 @@ mod tests {
         );
     }
 
+    #[test]
+    fn agent_cli_does_not_force_temperature_override_when_flag_is_absent() {
+        let cli = Cli::try_parse_from(["zeroclaw", "agent", "--provider", "openrouter", "-m", "hi"])
+            .expect("agent invocation should parse without temperature");
+
+        match cli.command {
+            Commands::Agent { temperature, .. } => {
+                assert_eq!(
+                    temperature, None,
+                    "temperature should stay unset so config.default_temperature is preserved"
+                );
+            }
+            other => panic!("expected agent command, got {other:?}"),
+        }
+    }
+
+    #[test]
+    fn agent_cli_parses_explicit_temperature_override() {
+        let cli = Cli::try_parse_from([
+            "zeroclaw",
+            "agent",
+            "--provider",
+            "openrouter",
+            "-m",
+            "hi",
+            "--temperature",
+            "1.1",
+        ])
+        .expect("agent invocation should parse explicit temperature");
+
+        match cli.command {
+            Commands::Agent { temperature, .. } => {
+                assert_eq!(temperature, Some(1.1));
+            }
+            other => panic!("expected agent command, got {other:?}"),
+        }
+    }
+
     #[test]
     fn gateway_cli_accepts_new_pairing_flag() {
         let cli = Cli::try_parse_from(["zeroclaw", "gateway", "--new-pairing"])