fix: pylint errors

Author: Isaac Springer

.gitignore

@@ -179,4 +179,5 @@ cython_debug/
 .cocoindex_code/
 .claude/
 .claude-flow/
-docs/superpowers/
+docs/superpowers/
+.swarm/

AGENTS.md

@@ -1,7 +1,7 @@
 <!-- gitnexus:start -->
 # GitNexus — Code Intelligence
 
-This project is indexed by GitNexus as **TinySteno** (238 symbols, 594 relationships, 20 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
+This project is indexed by GitNexus as **TinySteno** (270 symbols, 711 relationships, 21 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
 
 > If any GitNexus tool warns the index is stale, run `npx gitnexus analyze` in terminal first.
 

CLAUDE.md

@@ -1,7 +1,7 @@
 <!-- gitnexus:start -->
 # GitNexus — Code Intelligence
 
-This project is indexed by GitNexus as **TinySteno** (238 symbols, 594 relationships, 20 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
+This project is indexed by GitNexus as **TinySteno** (270 symbols, 711 relationships, 21 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
 
 > If any GitNexus tool warns the index is stale, run `npx gitnexus analyze` in terminal first.
 

tinysteno/main.py

@@ -163,7 +163,8 @@ def _process_audio(  # pylint: disable=too-many-arguments,too-many-positional-ar
     title_future = None
     tags_future = None
 
-    if (config.get("auto_title") or config.get("auto_tags")) and orchestrator and first_string_value:
+    wants_llm_metadata = config.get("auto_title") or config.get("auto_tags")
+    if wants_llm_metadata and orchestrator and first_string_value:
         print("Generating title and tags...")
         with ThreadPoolExecutor(max_workers=2) as executor:
             if config.get("auto_title"):

tinysteno/recorder.py

@@ -14,7 +14,7 @@
 try:
     import sounddevice as sd
 except Exception:  # pragma: no cover
-    sd = None  # type: ignore
+    sd = None  # type: ignore  # pylint: disable=invalid-name
 
 
 class AudioRecorder:
@@ -179,12 +179,12 @@ def start(self, name: Optional[str] = None) -> str:
         fd, mic_path = tempfile.mkstemp(suffix=".f32")
         os.close(fd)
         self._mic_raw_path = Path(mic_path)
-        self._mic_fh = open(mic_path, "wb")
+        self._mic_fh = open(mic_path, "wb")  # pylint: disable=consider-using-with
 
         fd, lb_path = tempfile.mkstemp(suffix=".f32")
         os.close(fd)
         self._loopback_raw_path = Path(lb_path)
-        self._loopback_fh = open(lb_path, "wb")
+        self._loopback_fh = open(lb_path, "wb")  # pylint: disable=consider-using-with
 
         try:
             self._audio_interface = sd.InputStream(
@@ -227,7 +227,7 @@ def _start_macos_loopback(self) -> bool:
 
             self._macos_loopback = MacOSLoopback(
                 sample_rate=self.sample_rate,
-                callback=lambda indata: self._write_loopback_frame(indata),
+                callback=self._write_loopback_frame,
             )
             self._macos_loopback.start()
             return True
@@ -290,19 +290,9 @@ def stop(self) -> bool:
             ch = self._mic_channels_written
             mic_data = raw.reshape(-1, ch) if ch > 1 else raw.reshape(-1, 1)
 
-            if self._has_loopback and loopback_raw_bytes:
-                lb_raw = np.frombuffer(loopback_raw_bytes, dtype=np.float32)
-                lbch = self._loopback_channels_written
-                lb_data = lb_raw.reshape(-1, lbch) if lbch > 1 else lb_raw.reshape(-1, 1)
-                if loopback_sr and abs(loopback_sr - self.sample_rate) > 1:
-                    from scipy.signal import resample as scipy_resample
-                    n_out = int(round(len(lb_data) * self.sample_rate / loopback_sr))
-                    lb_data = scipy_resample(lb_data.squeeze(), n_out).astype(np.float32).reshape(-1, 1)
-                audio_data = self._mix_stereo(mic_data, lb_data)
-                out_channels = 2
-            else:
-                audio_data = mic_data
-                out_channels = ch
+            audio_data, out_channels = self._build_audio_data(
+                mic_data, ch, loopback_raw_bytes, loopback_sr
+            )
 
             max_val = np.max(np.abs(audio_data))
             if max_val > 0:
@@ -339,6 +329,27 @@ def _cleanup_temp_files(self) -> None:
             self._loopback_raw_path.unlink(missing_ok=True)
             self._loopback_raw_path = None
 
+    def _build_audio_data(
+        self,
+        mic_data: np.ndarray,
+        mic_ch: int,
+        loopback_raw_bytes: bytes,
+        loopback_sr: Optional[int],
+    ) -> tuple[np.ndarray, int]:
+        """Mix mic and loopback raw bytes into final audio array."""
+        if not (self._has_loopback and loopback_raw_bytes):
+            return mic_data, mic_ch
+
+        from scipy.signal import resample as scipy_resample  # pylint: disable=import-outside-toplevel
+
+        lb_raw = np.frombuffer(loopback_raw_bytes, dtype=np.float32)
+        lbch = self._loopback_channels_written
+        lb_data = lb_raw.reshape(-1, lbch) if lbch > 1 else lb_raw.reshape(-1, 1)
+        if loopback_sr and abs(loopback_sr - self.sample_rate) > 1:
+            n_out = int(round(len(lb_data) * self.sample_rate / loopback_sr))
+            lb_data = scipy_resample(lb_data.squeeze(), n_out).astype(np.float32).reshape(-1, 1)
+        return self._mix_stereo(mic_data, lb_data), 2
+
     def _mix_stereo(self, mic: np.ndarray, loopback: np.ndarray) -> np.ndarray:
         """Combine mic and loopback into a stereo array [n, 2] (L=mic, R=loopback)."""
         # Reduce to mono