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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description adds the useful constraint that only the signed-in account is reachable, plus a return-field inventory. It says nothing about auth failure behavior or whether counts are eventual/approximate.

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 first sentence is a field list that the second sentence then repeats with more detail, so roughly half the text is redundant. It is still readable and front-loaded, but could be collapsed into one sentence without losing information.

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, listing the returned fields (name, URL, headline, followers/following, answer/question/post counts, Spaces and topics) is genuinely necessary and is done thoroughly. Minor gaps remain around authentication assumptions, but for a zero-parameter read tool this is close to 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?

The tool takes zero parameters, which is the baseline-4 case. The description correctly reinforces this by framing the target as implicitly 'the signed-in account', so no parameter explanation is needed.

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 clear verb+resource (returns the signed-in Quora account's profile) and enumerates exactly which fields come back, so the agent knows precisely what it gets. It does not, however, distinguish itself from sibling cotlet_whoami, which plausibly returns overlapping identity information.

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 phrase 'the signed-in Quora account' implies the use case (fetch your own identity/stats rather than another user's) and explains why there are no parameters. There is no explicit when-to-use against cotlet_whoami or list_my_answers, and no stated preconditions such as being authenticated.

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