diff --git a/crates/openfang-api/src/ws.rs b/crates/openfang-api/src/ws.rs
index 9f776ba8..193c689f 100644
--- a/crates/openfang-api/src/ws.rs
+++ b/crates/openfang-api/src/ws.rs
@@ -169,7 +169,7 @@ pub async fn agent_ws(
         let query_auth = uri
             .query()
             .and_then(|q| q.split('&').find_map(|pair| pair.strip_prefix("token=")))
-            .map(|raw| crate::percent_decode(raw))
+            .map(crate::percent_decode)
             .map(|token| ct_eq(&token, api_key))
             .unwrap_or(false);
 
diff --git a/crates/openfang-cli/src/tui/screens/init_wizard.rs b/crates/openfang-cli/src/tui/screens/init_wizard.rs
index 4d708f49..a2947128 100644
--- a/crates/openfang-cli/src/tui/screens/init_wizard.rs
+++ b/crates/openfang-cli/src/tui/screens/init_wizard.rs
@@ -970,13 +970,11 @@ pub fn run() -> InitResult {
                             if matches!(
                                 state.copilot_auth_status,
                                 CopilotAuthStatus::WaitingForUser
-                            ) {
-                                if !state.copilot_verification_uri.is_empty() {
-                                    let _ =
-                                        openfang_runtime::drivers::copilot::open_verification_url(
-                                            &state.copilot_verification_uri,
-                                        );
-                                }
+                            ) && !state.copilot_verification_uri.is_empty() {
+                                let _ =
+                                    openfang_runtime::drivers::copilot::open_verification_url(
+                                        &state.copilot_verification_uri,
+                                    );
                             }
                         }
                         _ => {}
diff --git a/crates/openfang-kernel/src/kernel.rs b/crates/openfang-kernel/src/kernel.rs
index 7f67fbc2..e1261040 100644
--- a/crates/openfang-kernel/src/kernel.rs
+++ b/crates/openfang-kernel/src/kernel.rs
@@ -514,7 +514,7 @@ impl OpenFangKernel {
     fn fetch_copilot_models(openfang_dir: &Path) -> Result<Vec<String>, String> {
         use openfang_runtime::drivers::copilot;
 
-        let tokens = copilot::PersistedTokens::load(&openfang_dir.to_path_buf())
+        let tokens = copilot::PersistedTokens::load(openfang_dir)
             .ok_or("No persisted Copilot tokens found")?;
 
         let fetch = async {
diff --git a/crates/openfang-runtime/src/drivers/copilot.rs b/crates/openfang-runtime/src/drivers/copilot.rs
index 5ddf5912..9c1f15f3 100644
--- a/crates/openfang-runtime/src/drivers/copilot.rs
+++ b/crates/openfang-runtime/src/drivers/copilot.rs
@@ -10,7 +10,7 @@
 //! `config.toml`. The driver handles the rest — device flow, token persistence,
 //! refresh, and Copilot API token exchange — automatically.
 
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use std::sync::Mutex;
 use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
 
@@ -55,6 +55,7 @@ const OAUTH_SCOPES: &str = "copilot";
 const TOKEN_FILE_NAME: &str = ".copilot-tokens.json";
 
 /// Device flow polling interval (seconds) — GitHub default is 5.
+#[allow(dead_code)]
 const DEVICE_FLOW_POLL_INTERVAL: Duration = Duration::from_secs(5);
 
 /// Maximum time to wait for user to authorize the device flow.
@@ -83,14 +84,14 @@ impl PersistedTokens {
     }
 
     /// Load from the OpenFang data directory.
-    pub fn load(openfang_dir: &PathBuf) -> Option<Self> {
+    pub fn load(openfang_dir: &Path) -> Option<Self> {
         let path = openfang_dir.join(TOKEN_FILE_NAME);
         let data = std::fs::read_to_string(&path).ok()?;
         serde_json::from_str(&data).ok()
     }
 
     /// Persist to the OpenFang data directory with restricted permissions.
-    pub fn save(&self, openfang_dir: &PathBuf) -> Result<(), String> {
+    pub fn save(&self, openfang_dir: &Path) -> Result<(), String> {
         let path = openfang_dir.join(TOKEN_FILE_NAME);
         let json = serde_json::to_string_pretty(self)
             .map_err(|e| format!("Failed to serialize tokens: {e}"))?;
@@ -138,6 +139,7 @@ impl CachedCopilotToken {
 #[derive(Clone)]
 struct CachedModels {
     models: Vec<String>,
+    #[allow(dead_code)]
     fetched_at: Instant,
 }
 
@@ -358,7 +360,7 @@ pub async fn exchange_copilot_token(
         .ok_or("Missing 'token' field in Copilot response")?;
 
     let expires_at_unix = body.get("expires_at").and_then(|v| v.as_i64()).unwrap_or(0);
-    let ttl_secs = (expires_at_unix - unix_now() as i64).max(60) as u64;
+    let ttl_secs = (expires_at_unix - unix_now()).max(60) as u64;
 
     // Extract base URL from endpoints.api or proxy-ep in the token.
     let base_url = body
@@ -732,7 +734,7 @@ impl crate::llm_driver::LlmDriver for CopilotDriver {
 ///
 /// Called from `openfang config set-key github-copilot`, `openfang init`,
 /// `openfang onboard`, and `openfang configure`.
-pub async fn run_interactive_setup(openfang_dir: &PathBuf) -> Result<PersistedTokens, String> {
+pub async fn run_interactive_setup(openfang_dir: &Path) -> Result<PersistedTokens, String> {
     run_device_flow(openfang_dir).await
 }
 
@@ -740,7 +742,7 @@ pub async fn run_interactive_setup(openfang_dir: &PathBuf) -> Result<PersistedTo
 ///
 /// Prints the user code and verification URL, attempts to open the browser,
 /// then polls until the user authorizes.
-pub async fn run_device_flow(openfang_dir: &PathBuf) -> Result<PersistedTokens, String> {
+pub async fn run_device_flow(openfang_dir: &Path) -> Result<PersistedTokens, String> {
     let client = reqwest::Client::builder()
         .timeout(Duration::from_secs(30))
         .build()
@@ -817,7 +819,7 @@ pub fn open_verification_url(url: &str) -> bool {
 }
 
 /// Check if Copilot OAuth tokens exist on disk.
-pub fn copilot_auth_available(openfang_dir: &PathBuf) -> bool {
+pub fn copilot_auth_available(openfang_dir: &Path) -> bool {
     openfang_dir.join(TOKEN_FILE_NAME).exists()
 }
 
diff --git a/crates/openfang-runtime/src/drivers/openai.rs b/crates/openfang-runtime/src/drivers/openai.rs
index 2d9f63a2..2c3edc8c 100644
--- a/crates/openfang-runtime/src/drivers/openai.rs
+++ b/crates/openfang-runtime/src/drivers/openai.rs
@@ -276,7 +276,7 @@ struct OaiUsage {
 /// Strip trailing empty assistant messages without tool calls.
 /// Some API proxies reject empty assistant messages as "prefill".
 fn strip_trailing_empty_assistant(messages: &mut Vec<OaiMessage>) {
-    while messages.last().map_or(false, |m| {
+    while messages.last().is_some_and(|m| {
         m.role == "assistant"
             && m.tool_calls.is_none()
             && match &m.content {