get_comment_by_id

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

No annotations are provided, so the description carries full burden. It states the tool returns the comment with nested replies, which is behaviorally informative. However, it does not disclose any other traits such as authentication, rate limits, or side effects (though 'Get' implies read-only). Adequate but not detailed.

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?

Two sentences, immediately front-loaded with the action and resource. No extraneous information. Every word earns its place.

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 is simple (one parameter, no output schema), the description sufficiently covers the purpose and return value (comment with nested replies). It lacks mention of error cases or response structure, but for a 'get by ID' tool this is nearly complete.

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% with the 'id' parameter described as 'The ID code of the comment (alphanumeric string)'. The description merely restates 'by its ID code', adding no additional meaning beyond the schema. Baseline 3 applies.

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 explicitly states 'Get a single comment by its ID code' – a specific verb+resource+identifier. It distinguishes from the sibling 'get_comments' by specifying single vs. multiple. Purpose is clear and unambiguous.

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 implies when to use (when you have a specific comment ID) but does not explicitly state when not to use or mention alternatives like 'get_comments' for listing. No exclusion or context guidance beyond what's inferred from the name.

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