QGISMCP

Instructions

Implementation Reference

• src/qgis_mcp/qgis_mcp_server.py:208-213 (handler)

  MCP tool handler for 'remove_layer'. Proxies the request to the QGIS plugin socket server via get_qgis_connection() and send_command().

  @mcp.tool()
  def remove_layer(ctx: Context, layer_id: str) -> str:
      """Remove a layer from the project by its ID."""
      qgis = get_qgis_connection()
      result = qgis.send_command("remove_layer", {"layer_id": layer_id})
      return json.dumps(result, indent=2)

• qgis_mcp_plugin/qgis_mcp_plugin.py:313-321 (handler)

  Core implementation of remove_layer command in the QGIS plugin. Removes the specified layer from the current QgsProject instance.

  def remove_layer(self, layer_id, **kwargs):
      """Remove a layer from the project"""
      project = QgsProject.instance()
      
      if layer_id in project.mapLayers():
          project.removeMapLayer(layer_id)
          return {"removed": layer_id}
      else:
          raise Exception(f"Layer not found: {layer_id}")

• qgis_mcp_plugin/qgis_mcp_plugin.py:133-149 (registration)

  Registration of command handlers in the QGIS plugin socket server, including 'remove_layer': self.remove_layer.

  handlers = {
      "ping": self.ping,
      "get_qgis_info": self.get_qgis_info,
      "load_project": self.load_project,
      "get_project_info": self.get_project_info,
      "execute_code": self.execute_code,
      "add_vector_layer": self.add_vector_layer,
      "add_raster_layer": self.add_raster_layer,
      "get_layers": self.get_layers,
      "remove_layer": self.remove_layer,
      "zoom_to_layer": self.zoom_to_layer,
      "get_layer_features": self.get_layer_features,
      "execute_processing": self.execute_processing,
      "save_project": self.save_project,
      "render_map": self.render_map,
      "create_new_project": self.create_new_project,
  }

• src/qgis_mcp/qgis_socket_client.py:113-115 (helper)

  Wrapper method in the socket client for sending remove_layer command.

  def remove_layer(self, layer_id):
      """Remove a layer from the project"""
      return self.send_command("remove_layer", {"layer_id": layer_id})