WeMo MCP Server

Instructions

Dictionary containing:
- success: Whether cache was cleared successfully
- message: Descriptive message

Implementation Reference

• src/wemo_mcp_server/server.py:606-643 (handler)

  The `clear_cache` tool clears both the persistent device cache (via `_cache_manager`) and the in-memory `_device_cache` dictionary.

  @mcp.tool()
  async def clear_cache() -> dict[str, Any]:
      """Clear the persistent device cache.
  
      Removes the cache file and clears in-memory cache. Useful when devices
      have changed or cache is corrupted. Run scan_network after clearing
      to rebuild the cache.
  
      Returns
      -------
          Dictionary containing:
          - success: Whether cache was cleared successfully
          - message: Descriptive message
  
      """
      try:
          # Clear persistent cache
          cache_cleared = _cache_manager.clear()
  
          # Clear in-memory cache
          _device_cache.clear()
  
          if cache_cleared:
              return {
                  "success": True,
                  "message": "Cache cleared successfully. Run scan_network to rebuild cache.",
                  "timestamp": time.time(),
              }
          return {
              "success": False,
              "error": "Failed to clear cache file",
              "timestamp": time.time(),
          }
  
      except Exception as e:
          logger.error(f"Error clearing cache: {e}", exc_info=True)
          return build_error_response(e, "Clear cache")