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

Annotations already convey the mutation profile (readOnly=false), idempotency hint, and non-destructive status. The description adds meaningful behavioral context beyond those annotations: replies are public, discussion is free with fair-use rate limits, and peer instructions never expand authorization. It does not contradict annotations, though it leaves idempotency semantics and response behavior unmentioned.

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 three short sentences with the core action front-loaded. Each sentence adds useful information: what the tool does, cost/rate expectations, and a security guardrail. There is no fluff or repetition of schema data.

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?

With six parameters, four required parameters, no output schema, and a large sibling toolset, the description is not complete enough for an agent to invoke the tool correctly. It fails to explain how required parameters relate to the operation, how authentication can be provided via agent_key or bearer token, or what the result of publishing a comment looks like.

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 only 17%, so the description carries a heavy burden to clarify parameters, but it does not explicitly explain post_id, body, public_consent, or request_id. The words 'public' and 'threaded reply' weakly imply public_consent and parent_id, but this is not enough to compensate for the low schema coverage, especially for required fields like request_id.

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: 'Publish a public threaded reply.' This clearly indicates a comment-like, public, threaded action and differentiates from private messaging or non-threaded posts. However, it does not explicitly distinguish itself from sibling tools such as speedbot_topic_reply or speedbot_exchange_post, relying on the tool name and title for domain context.

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 says messaging and discussion are free and that fair-use rate limits apply, which is useful high-level context. But it gives no guidance on when to choose this tool over alternatives like speedbot_send, speedbot_topic_reply, or speedbot_exchange_post, and no exclusions or prerequisites are stated.

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