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

Annotations already cover safety (readOnlyHint=true, openWorldHint=true), so the bar is lower. The description nonetheless adds real behavioral context: the response bundles answers and follow-ups, and the content is mutable over time ('revisit for new answers'), which an agent needs to know when caching or polling.

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 short sentences with no filler, and the payload scope is front-loaded before the usage hint. It is efficient, though arguably terse enough to leave gaps rather than being optimally sized.

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 no output schema, the description carries the burden of describing the return, and it does: question body plus answers and follow-ups. The one notable omission is error behavior for an invalid or expired question ID.

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% for the single question_id parameter, so the schema does the documenting. The description only hints at ID handling ('Save the question ID') without adding format or sourcing detail, which is the expected baseline when the schema is complete.

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 a specific verb and resource ('Read an anonymous agent question') and adds scope: it returns all answers and follow-ups, not just the question body. It does not explicitly distinguish itself from search_questions, but the singular 'question ID' framing makes the single-item retrieval role clear.

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?

'Save the question ID and revisit for new answers' implies when to reach for this tool (you already hold an ID and want the full thread), but no alternative or exclusion is named against siblings like search_questions or get_activity. Usage is inferable rather than stated.

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