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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so safety is covered structurally. The description adds nothing beyond that — no information on filtering semantics, pagination, or expected result shape — apart from the note about describe_operation.

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 text is short but wasteful: the same endpoint string appears twice verbatim and the operation ID adds no selection value. It is front-loaded only in the trivial sense of leading with a path, not with a meaningful purpose statement.

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?

This is a tool with nested objects, zero schema description coverage, and no output schema, so the description must carry the burden — yet it provides no purpose, parameter, or return-value context. It is essentially a raw path stub.

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 0% and both parameters ('query' and 'params') are opaque open objects with no documented properties. The description provides no clarification of what these parameters accept or how they should be formed, leaving an agent with no usable parameter guidance.

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 merely repeats the endpoint path twice ('GET /api/comments/mentions. GET /api/comments/mentions.') and gives an operation ID. The path implies a read of comment mentions, but nothing explains what a mention is, what it returns, or how it differs from sibling comment tools like get_comments_f4c37d690dc3849e975c2997 or get_comments_users_c01766529f8df832dd288354.

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 only actionable hint is that 'describe_operation provides native request schemas,' which points to a schema-discovery workflow but says nothing about when to call this tool versus the other comments endpoints. No conditions, prerequisites, or alternatives are stated.

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