get_comment_replies

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

With no annotations, the description carries the full behavioral disclosure burden. The words 'List' and 'GET' convey that this is a read-only call, which is genuinely useful, but the description stops there: it does not expose pagination semantics (how 'after' works, whether the reply list is recursive), permission requirements, or the shape of the response beyond what the separate output schema covers.

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?

A single, instruction-sized sentence that front-loads the exact operation ('List...') followed by the endpoint. Every token contributes meaning; there is no filler or repetition of what a schema already provides.

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?

The output schema exists, so return values are covered, and the tool is a fairly simple list operation. Still, the description omits important contextual pieces a caller needs correctly: how pagination tokens are produced and consumed, whether hidden or nested replies are included, and any access/precondition requirements for the comment path.

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 the description mentions no parameters. The required 'comment_id' is inferable from the endpoint and tool name, and 'fields' self-explains via its long default value, but 'after' (an opaque pagination cursor) and 'limit' behavior are left undefined for the agent, creating real ambiguity for a paginated workflow.

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?

States the specific verb and resource ('List replies to a comment') and includes the underlying endpoint, (GET /{comment-id}/comments), which disambiguates it from sibling tools such as get_post_comments (top-level post comments) or get_comment (a single comment). An agent reading this description alone can tell exactly which operation is exposed.

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?

There is no guidance on when to choose this tool over its siblings. The description never says 'use this for replying to comments' or explicitly rejects top-level comments/posts; an agent simply has to infer from the path and the tool's name, which is not reliable for routing between so many related endpoints.

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