# `MCP001` Start server with specifications
{bdg-ref-info}`mcp | core <mcp:core>`

The system shall be started with one or more specification files (YAML or TOML)
provided as command-line arguments.

If the specification files contain validation errors
(such as missing fields or unknown references),
the server shall fail to start and display an error message.


:::{dropdown} Properties
:icon: note
:color: primary

__author__: Claude

__since__: `0.2.0`

:::
:::{dropdown} Tested by
:open: 
:icon: check-circle-fill
:color: success

- [`TMCP001` Start the MCP server](/tests/TMCP001)
- [`TMCP002` Reject invalid specifications](/tests/TMCP002)
:::

:::{dropdown} Source
:icon: file-code
:color: info

__Source file__: [`specs/mcp/nonfunctional.yaml`](https://github.com/agagniere/speky/blob/master/specs/mcp/nonfunctional.yaml)

__Loaded from__: [`speky_mcp`](https://github.com/agagniere/speky/blob/master/specs/mcp/mcp.toml)

__Implemented in:__
{fab}`python` [`python/speky_mcp/server.py:1`](https://github.com/agagniere/speky/blob/master/python/speky_mcp/server.py#L1)
:::