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

Annotations already establish this is a safe, closed-world read (readOnlyHint=true, openWorldHint=false, destructiveHint=false), so the bar is lower. The description adds genuinely non-structural context: the subscription tier requirement and the fact that some checklist items are drafts askTender prepares for signature, which signals downstream actions the agent should be aware of.

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 tight sentences, front-loaded with the resource and its contents, with the eligibility constraint appended without padding. No redundant restatement of the title or name.

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 read-only, single-parameter tool with no output schema and annotations covering safety, the description conveys the shape of the return value (three checklist categories) well. The gaps are the undocumented tender_id and the absence of any note on list size or ordering.

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 coverage is 0% for the single tender_id parameter, and the description does not define its format, provenance, or whether it is required. It only implies the input is 'a tender,' so an agent cannot tell from the description alone where to source the identifier.

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 resource and scope: a per-tender submission checklist personalized to the user's company, broken into three concrete categories (already-held documents, askTender-prepared drafts, items to obtain with lead times). It is readily distinguishable from generic siblings like get_requirements or can_company_bid, though it never names an alternative to sharpen the contrast.

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 supplies one real gating rule ('Pro plan and above'), which is useful eligibility guidance, and the phrase 'for a tender' implies it is used after a tender is identified. However, it never states when to prefer this over get_requirements or can_company_bid, nor any exclusion or timing guidance.

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