EVE-NG MCP Server

Instructions

Implementation Reference

• eveng_mcp_server/tools/node_management.py:521-561 (handler)

  MCP tool handler for wipe_all_nodes: validates input, checks EVE-NG connection, calls client.wipe_all_nodes, formats success/error response.

  @mcp.tool()
  async def wipe_all_nodes(arguments: BulkNodeControlArgs) -> list[TextContent]:
      """
      Wipe all nodes in a lab (reset to factory state).
  
      This tool wipes all nodes in the lab, deleting all user configuration
      including startup-configs, VLANs, and other settings. The next start
      will rebuild all nodes from their selected images.
      """
      try:
          logger.info(f"Wiping all nodes in {arguments.lab_path}")
  
          if not eveng_client.is_connected:
              return [TextContent(
                  type="text",
                  text="Not connected to EVE-NG server. Use connect_eveng_server tool first."
              )]
  
          # Wipe all nodes
          result = await eveng_client.wipe_all_nodes(arguments.lab_path)
  
          if result.get('status') == 'success':
              return [TextContent(
                  type="text",
                  text=f"Successfully wiped all nodes in {arguments.lab_path}\n\n"
                       f"⚠️  All user configurations have been deleted. All nodes have been reset to factory state.\n"
                       f"The next start will rebuild all nodes from their selected images."
              )]
          else:
              return [TextContent(
                  type="text",
                  text=f"Failed to wipe all nodes: {result.get('message', 'Unknown error')}"
              )]
  
      except Exception as e:
          logger.error(f"Failed to wipe all nodes: {e}")
          return [TextContent(
              type="text",
              text=f"Failed to wipe all nodes: {str(e)}"
          )]

• eveng_mcp_server/tools/node_management.py:59-62 (schema)

  Pydantic schema defining the input arguments for wipe_all_nodes (lab_path). Shared with other bulk operations.

  class BulkNodeControlArgs(BaseModel):
      """Arguments for bulk node operations."""
      lab_path: str = Field(description="Full path to the lab (e.g., /lab_name.unl)")

• eveng_mcp_server/tools/__init__.py:24-25 (registration)

  Registration call for node management tools (including wipe_all_nodes) within the central register_tools function.

  # Node management tools
  register_node_tools(mcp, eveng_client)

• eveng_mcp_server/core/eveng_client.py:463-474 (helper)

  Core client wrapper method that performs the wipe_all_nodes operation by calling the EVE-NG API.

  async def wipe_all_nodes(self, lab_path: str) -> Dict[str, Any]:
      """Wipe all nodes in a lab (reset to factory state)."""
      await self.ensure_connected()
  
      try:
          result = await asyncio.to_thread(self.api.wipe_all_nodes, lab_path)
          self.logger.info("Wiped all nodes", lab_path=lab_path)
          return result
      except Exception as e:
          self.logger.error("Failed to wipe all nodes", **log_error(e, {"lab_path": lab_path}))
          raise EVENGAPIError(f"Failed to wipe all nodes: {str(e)}")

• eveng_mcp_server/server.py:53-53 (registration)

  Top-level call to register all tools (including wipe_all_nodes) in the MCP server initialization.

  register_tools(self.mcp, self.eveng_client)