get_comment_thread

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

With no annotations and no output schema, the description carries the full behavioral burden. It does disclose that the result includes the parent chain and replies, which is useful, but says nothing about pagination, ordering, depth/context effects, error behavior for missing or deleted comments, or auth requirements.

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 short, front-loaded sentence with no filler. Nothing is wasted, though the brevity is partly the cause of the gaps elsewhere.

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?

For a tool with three parameters, two of which are non-obvious traversal controls, no annotations, and no output schema, the description is too thin. An agent cannot determine what depth/context do or how large the response will be.

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% for all three parameters, so the description must compensate and does not: 'depth' and 'context' are never mentioned, and their bounds/defaults are only visible as raw numbers in the schema. The phrase 'parent chain and replies' hints loosely at the two traversal parameters but never maps them to meaning.

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 uses a specific verb and resource ('Get a single comment') and adds scope detail ('with parent chain and replies'), which distinguishes it from list tools like get_user_comments. It does not, however, name or differentiate itself from sibling single-item tools such as get_post_detail.

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 explicit when-to-use guidance, no prerequisites, and no named alternatives among the sibling tools. The only cue is the implied 'fetch one comment by id' usage, which the agent must infer from the name and required comment_id.

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