diff --git a/crates/config/src/lib.rs b/crates/config/src/lib.rs
index 0b5992fa..9bfb089e 100644
--- a/crates/config/src/lib.rs
+++ b/crates/config/src/lib.rs
@@ -1128,10 +1128,10 @@ fn merge_provider_config(target: &mut ProviderConfigToml, source: &ProviderConfi
 pub fn load_project_config(workspace: &Path) -> Option<ConfigToml> {
     for dir in [CODEWHALE_APP_DIR, LEGACY_APP_DIR] {
         let path = workspace.join(dir).join(CONFIG_FILE_NAME);
-        if path.exists() {
-            if let Ok(raw) = fs::read_to_string(&path) {
-                return toml::from_str(&raw).ok();
-            }
+        if path.exists()
+            && let Ok(raw) = fs::read_to_string(&path)
+        {
+            return toml::from_str(&raw).ok();
         }
     }
     None
diff --git a/crates/tui/src/commands/init.rs b/crates/tui/src/commands/init.rs
index 6dd74353..7e302746 100644
--- a/crates/tui/src/commands/init.rs
+++ b/crates/tui/src/commands/init.rs
@@ -75,14 +75,13 @@ fn ensure_deepseek_gitignored(workspace: &Path) {
         // If the file is non-empty and doesn't end with a newline, add one first.
         if let Ok(meta) = file.metadata()
             && meta.len() > 0
+            && let Ok(mut f) = std::fs::File::open(&gitignore)
         {
-            if let Ok(mut f) = std::fs::File::open(&gitignore) {
-                use std::io::Seek;
-                if f.seek(std::io::SeekFrom::End(-1)).is_ok() {
-                    let mut buf = [0u8; 1];
-                    if f.read_exact(&mut buf).is_ok() && buf[0] != b'\n' {
-                        let _ = writeln!(file);
-                    }
+            use std::io::Seek;
+            if f.seek(std::io::SeekFrom::End(-1)).is_ok() {
+                let mut buf = [0u8; 1];
+                if f.read_exact(&mut buf).is_ok() && buf[0] != b'\n' {
+                    let _ = writeln!(file);
                 }
             }
         }
@@ -109,7 +108,7 @@ fn generate_project_doc(workspace: &Path) -> String {
     doc.push_str("<!-- How should an AI agent approach this project? Fill in tool gotchas, -->\n");
     doc.push_str("<!-- file patterns to avoid, and anything that helps a model navigate -->\n");
     doc.push_str("<!-- the codebase without reading every file. -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
     doc.push_str("- **CodeWhale reads this file as:** <!-- WHALE.md (CodeWhale-native) or AGENTS.md (compatible with other agents) -->\n");
     doc.push_str(
         "- **Read-only surface:** <!-- Which directories can the agent read but not write? -->\n",
@@ -118,24 +117,24 @@ fn generate_project_doc(workspace: &Path) -> String {
         "- **Never edit:** <!-- Files that are generated, vendored, or owned by another tool -->\n",
     );
     doc.push_str("- **Always test with:** <!-- The single command that validates a change (e.g. `cargo test -p foo`) -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
 
     // Architecture — the "big picture" that requires reading multiple files
     doc.push_str("## Architecture\n\n");
     doc.push_str("<!-- Describe the high-level structure. What are the key modules and how -->\n");
     doc.push_str("<!-- do they connect? Focus on the context a new contributor would need. -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
     doc.push_str("### Entry Points\n");
     doc.push_str(
         "<!-- Where does execution start? Binary entry, request handler, main loop? -->\n",
     );
-    doc.push_str("\n");
+    doc.push('\n');
     doc.push_str("### Key Modules\n");
     doc.push_str("<!-- List the 3-6 most important directories/files and their role -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
     doc.push_str("### Data Flow\n");
     doc.push_str("<!-- How does a request / event / input travel through the system? -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
 
     // Cache-aware editing — helps maintain prefix-cache hit rates
     doc.push_str("## Cache Stability\n\n");
@@ -143,11 +142,11 @@ fn generate_project_doc(workspace: &Path) -> String {
     doc.push_str(
         "<!-- Keeping these things stable turn-over-turn saves ~90% on input tokens. -->\n",
     );
-    doc.push_str("\n");
+    doc.push('\n');
     doc.push_str("- **Frequently-rebuilt files:** <!-- Generated code, lockfiles, build artifacts → mark as cache-churn -->\n");
     doc.push_str("- **Stable scaffolding:** <!-- Config files, project instructions, model cards → keep byte-stable -->\n");
     doc.push_str("- **Append, don't reorder:** <!-- New context goes at the end of the request; reordering invalidates cache -->\n");
-    doc.push_str("\n");
+    doc.push('\n');
 
     // Guidelines
     doc.push_str("## Guidelines\n\n");
diff --git a/crates/tui/src/tui/ui/tests.rs b/crates/tui/src/tui/ui/tests.rs
index 4ec63799..9b2b981f 100644
--- a/crates/tui/src/tui/ui/tests.rs
+++ b/crates/tui/src/tui/ui/tests.rs
@@ -6532,7 +6532,7 @@ mod work_sidebar_projection_tests {
     fn receipt_summary_truncation_does_not_panic_on_multibyte_boundary() {
         // Build a summary where byte 57 falls mid-character (em dash is 3 bytes).
         // 56 ASCII chars + em dash ensures byte 57 lands inside the em dash.
-        let prefix: String = std::iter::repeat('a').take(56).collect(); // 56 ASCII bytes
+        let prefix = "a".repeat(56); // 56 ASCII bytes
         let summary = format!("{prefix}— rest of summary"); // byte 56='a', 57-59='—'
         assert!(summary.len() > 60);
         // Byte 57 should be inside the em dash (3-byte UTF-8 sequence).