GitLab MCP Server

verify_namespace

Check if a GitLab namespace path exists to validate project organization before creating or accessing resources.

Instructions

Verify if a namespace path exists

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "path": "<path>"
    },
    "name": "verify_namespace"
  }
}

Input Schema

Name	Required	Description	Default
`path`	Yes	Namespace path to verify

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv1.0.0Jan 3, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
First observedNov 16, 2025

TDQS

C2.9/5.0

Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations are absent, so the description carries the full behavioral disclosure burden, but it only restates the core action. It does not disclose what happens when the path does not exist (error vs. false), the return shape, or whether path semantics cover parent namespaces — all critical for a verify-style tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single six-word sentence with no wasted words, and the core verb is front-loaded. It is appropriately sized for the content, though the brevity contributes to gaps scored in other dimensions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema and no annotations, the description should clarify what 'verify' returns and how failures are signaled, but it does neither. For a simple one-parameter tool it is minimally usable, yet the central return-value behavior is left unspecified.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and the schema already describes path as 'Namespace path to verify.' The description adds no format, syntax, or scope details beyond what the schema provides, so it meets the baseline but does not exceed it.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb and resource: 'Verify if a namespace path exists.' It clearly communicates a lightweight existence check, which is distinct in intent from siblings like get_namespace or list_namespaces, though it doesn't explicitly name them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given on when to use this tool versus closely related siblings such as get_namespace or list_namespaces. Intended use is only implied by the tool name and the single phrase; there are no exclusions, prerequisites, or alternative routing provided.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.