"""Numeric thresholds for BEHAVE-SHELL primitive classification.

Each constant added here cites its calibration source. When the
registry's ``notes:`` field disagrees with a constant in this file the
registry is authoritative — fix the constant and re-run the
calibration grid.

Step 0 ships this file empty by design; thresholds land alongside the
feature functions that consume them (Steps 1+).
"""
from __future__ import annotations