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

Annotations already declare destructiveHint=true and idempotentHint=true; the description reinforces this with 'An answer cannot be changed after' and adds non-obvious side-effect info ('Emails nobody') that annotations do not capture. It stops short of saying what happens to the offer/hire state when the response is recorded, which is the one behavioral gap for a destructive write.

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?

Short and front-loaded: purpose first, then the gating condition, then the caveats. The fragmentary closing sentences ('Emails nobody.') are terse but each carries distinct information, so little is wasted.

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?

An output schema exists so return values need not be described, and the description covers irreversibility and the absence of email side effects. It is slightly incomplete on how to obtain/validate the two identifiers and on the resulting offer state, which matters for a destructive mutation.

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 largely does not. 'response' is inferable from 'the candidate's answer' and its enum is self-documenting, but job_id and application_id are never explained (where they come from, whether application_id must belong to job_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?

States a specific verb+resource ('Record the candidate's answer to their offer') plus the scope condition (answer given to the member directly by phone or in person). It also distinguishes the case from the sibling workflow where the candidate answers on the offer page, so an agent can route without opening the schema.

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?

Explicit when-to-use ('only when the member tells you the candidate answered') and when-not ('a candidate who answered on their offer page needs nothing'). No alternatives or exclusions are left to inference.

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