gitlab mcp

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

No annotations are provided, so the description carries full burden. It mentions 'upload' (implying a write operation) and 'for use in markdown content' (suggesting a specific use case), but lacks critical behavioral details: required permissions, whether it overwrites existing files, rate limits, error handling, or response format. For a mutation tool with zero annotation coverage, this is inadequate.

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

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

The description is a single, efficient sentence with zero waste—it directly states the tool's purpose without fluff. It's appropriately sized and front-loaded, making it easy to parse quickly.

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

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

Given this is a mutation tool with no annotations and no output schema, the description is incomplete. It lacks behavioral transparency (e.g., permissions, side effects), usage guidelines, and details on what the tool returns. The high schema coverage helps with parameters, but overall context is insufficient for safe and effective use.

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

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

Schema description coverage is 100%, so the schema already documents both parameters ('project_id' and 'file_path') adequately. The description adds no additional parameter semantics beyond what's in the schema, such as file format constraints or markdown-specific requirements. Baseline 3 is appropriate when schema does the heavy lifting.

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

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

The description clearly states the action ('Upload a file') and target resource ('to a GitLab project'), with the specific purpose 'for use in markdown content' adding useful context. It distinguishes from generic file uploads by mentioning markdown usage, though it doesn't explicitly differentiate from sibling tools like 'create_or_update_file' or 'push_files'.

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

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

The description provides no guidance on when to use this tool versus alternatives like 'create_or_update_file' or 'push_files', nor does it mention prerequisites, constraints, or typical scenarios. It simply states what the tool does without usage context.

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