GitLab MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the action but lacks critical details: whether this requires specific permissions, if it's reversible (beyond the 'resolved' parameter), what happens to the discussion thread after resolution, or any rate limits/constraints. For a mutation tool with zero annotation coverage, this is a significant gap in transparency.

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 that front-loads the core action and target. Every word earns its place with no redundancy or fluff, making it easy to parse quickly while conveying essential information.

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 the tool's complexity (a mutation with no annotations and no output schema), the description is incomplete. It doesn't address behavioral aspects like permissions, side effects, or response format, nor does it guide usage relative to siblings. For a tool that modifies state, more context is needed to ensure safe and correct invocation.

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 fully documents all three parameters. The description adds no additional meaning beyond what's in the schema—it doesn't explain parameter relationships, format specifics, or edge cases. This meets the baseline for high schema coverage but doesn't enhance understanding.

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 ('resolve or unresolve') and target ('a discussion thread in a merge request review'), making the purpose immediately understandable. It specifies the resource type (discussion thread) and context (merge request review), though it doesn't explicitly differentiate from sibling tools like 'reply_to_review_comment' or 'create_review_comment' that also interact with discussions.

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. It doesn't mention prerequisites (e.g., needing an existing discussion thread), exclusions, or relationships to sibling tools like 'get_merge_request_reviews' or 'get_commit_discussions' that might be used to find discussions first. Usage is implied but not explicitly stated.

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