# `TMCP002` Reject invalid specifications

Verify the server refuses to start with invalid specification files

:::{dropdown} Is a test for
:open: 
:icon: check-circle-fill
:color: primary

[`MCP001` Start server with specifications](/requirements/MCP001)
:::
:::{dropdown} Source
:icon: file-code
:color: info

__Source file__: [`specs/mcp/test_01.yaml`](https://github.com/agagniere/speky/blob/master/specs/mcp/test_01.yaml)

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

:::

## Initial state
The expected state is the final state of
[`TMCP001` Start the MCP server](/tests/TMCP001)
## Procedure
### Step 1
Create an invalid specification
```console
$ cat req_unknown_ref.yaml
```
```yaml
kind: requirements
category: functional
requirements:
- id: RF01
  short: Lorem Ipsum
  long: The `RF00` requirement doesn't exist
  tags: [foo]
  ref: [RF00]

```
### Step 2
Attempt to start MCP server with it
```console
$ speky_mcp req_unknown_ref.yaml
speky_mcp     INFO  Loading req_unknown_ref.yaml
speky_mcp CRITICAL  'Requirement RF00, referred from RF01, does not exist'

```
### Step 3
Verify the server exited with an error code
```console
$ echo $?
1
```