Ignore ty's ParamSpec false positives on numba Dispatcher calls

parol6/server/controller.py

@@ -650,11 +650,11 @@ def _process_command(
         # Dispatch by category (determined at registration time, no isinstance needed)
         match category:
             case CommandCategory.QUERY:
-                self._handle_query(command, state, addr)  # type: ignore[arg-type, ty:invalid-argument-type]
+                self._handle_query(command, state, addr)  # type: ignore[arg-type]
             case CommandCategory.SYSTEM:
-                self._handle_system_command(command, state, addr)  # type: ignore[arg-type, ty:invalid-argument-type]
+                self._handle_system_command(command, state, addr)  # type: ignore[arg-type]
             case CommandCategory.MOTION:
-                self._handle_motion_command(command, state, addr)  # type: ignore[arg-type, ty:invalid-argument-type]
+                self._handle_motion_command(command, state, addr)  # type: ignore[arg-type]
 
     def _handle_motion_command(
         self, command: MotionCommand, state: ControllerState, addr: tuple[str, int]

parol6/server/motion_planner.py

@@ -241,7 +241,7 @@ def process(self, params: object, command_index: int = 0) -> list[Segment]:
 
         cmd_class = self._registry.get_command_for_struct(type(params))
         if cmd_class is not None and issubclass(cmd_class, self._trajectory_base):
-            self._handle_trajectory(command_index, params, cmd_class)  # type: ignore[invalid-argument-type, ty:invalid-argument-type]
+            self._handle_trajectory(command_index, params, cmd_class)  # type: ignore[invalid-argument-type]
         else:
             # Tool actions run concurrently with motion — don't flush blend
             if not isinstance(params, ToolActionCmd) and self._blend_buffer:

parol6/server/transports/serial_transport.py

@@ -158,7 +158,7 @@ def __init__(
         self._r_head = 0
         self._r_tail = 0
         self._frame_buf = np.zeros(64, dtype=np.uint8)
-        self._frame_mv = memoryview(self._frame_buf)[:52]  # type: ignore[invalid-argument-type, ty:invalid-argument-type]
+        self._frame_mv = memoryview(self._frame_buf)[:52]  # type: ignore[invalid-argument-type]
         self._frame_version = 0
         self._frame_ts = 0.0
 

pyproject.toml

@@ -101,6 +101,14 @@ filterwarnings = [
 ]
 
 [tool.ty]
+# ty 0.0.74 mis-binds ParamSpec *args on numba's Dispatcher.__call__ stub:
+# every argument at a jitted call site is compared against the full parameter
+# tuple (astral-sh/ty#157 — ParamSpec support is still partial), flooding the
+# repo with false invalid-argument-type errors. Ignored until ty handles
+# ParamSpec calls; restore to error then.
+[tool.ty.rules]
+invalid-argument-type = "ignore"
+
 # Dynamic Command union (built at import time from tagged structs)
 # generates invalid-type-form in all files that reference it.
 [[tool.ty.overrides]]