# ── Skill usage reader (read-only) ──# Note: .usage.json is written by hermes-agent (tools/skill_usage.py).# WebUI only reads to display usage stats in Insights page. import jsonimport loggingfrom pathlib import Path logger = logging.getLogger(__name__) _USAGE_FILE = ".usage.json"  def read_skill_usage(skills_dir: Path) -> dict:    """Read the current .usage.json.     Returns the raw nested dict ``{skill_name: {use_count: N, view_count: N, ...}}``    or an empty dict when the file does not exist or is corrupt.    """    usage_path = skills_dir / _USAGE_FILE    if not usage_path.exists():        return {}    try:        raw = usage_path.read_text(encoding="utf-8")        data = json.loads(raw)        if isinstance(data, dict):            return data        logger.debug("Unexpected .usage.json format, resetting: %s", raw[:200])        return {}    except (json.JSONDecodeError, OSError) as exc:        logger.debug("Failed to read .usage.json: %s", exc)        return {}