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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world behavior, so the safety bar is met. The description adds real value beyond that by disclosing the auth requirement ('Requires an API key') and the role-dependent result scoping, which annotations cannot convey.

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?

Very short and front-loaded, with the core action stated first. The parenthetical seller clause is slightly awkward but earns its place by altering the returned 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?

For a single-parameter read-only list tool with rich annotations and no output schema, the definition covers purpose, auth, and view scoping adequately. Missing only pagination/ordering and error behavior for an invalid job_id, which are minor gaps here.

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%, so the schema itself gives no meaning to job_id beyond a UUID pattern. The description implies 'a job you posted' but adds no format, ownership, or error semantics for the parameter, so it only partially compensates.

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 (lists bids on a job) and scopes it by viewer role. An agent can distinguish it from siblings like place_bid and award_bid, though the phrasing 'Bids on a job you posted' is slightly telegraphic rather than a clean declarative sentence.

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?

Adds useful role context: it returns bids on a job you posted, or only your own bid if you are a seller. However, it never states when to use this versus alternatives or prerequisites beyond the API key mention, leaving usage largely implied.

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