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

Annotations already declare readOnlyHint/idempotentHint/destructiveHint=false, so safety is covered. The description adds genuine behavioral context beyond that: what the service does with the document, that the deliverable is a Word package, and explicit negative scope ('does not pay and does not submit'), which is exactly the kind of boundary an agent needs. It does not describe the returned link's lifetime or reuse behavior.

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 sentences, front-loaded with the primary artifact (the link), followed by a compact capability statement and a short exclusion clause. Every clause carries information; no padding.

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 one-parameter, no-output-schema tool, the description covers the outcome (a link), the process, and the limits (no payment, no submission). Nothing essential to invoking it correctly appears to be missing, though auth or timing expectations are unstated.

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?

There is a single parameter ('number', purchase number) with 100% schema description coverage, so the schema carries the meaning. The description never mentions the parameter or its format, adding nothing beyond the schema — baseline 3 applies.

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?

The description names a concrete outcome: it returns a link where the user assembles a purchase bid in GenTender, and outlines the service's pipeline (reads the technical spec, fills the customer's forms, delivers a Word package). This is clearly distinguishable from the read-only siblings (get_tender, search_tenders, tender_documents), though it never explicitly contrasts itself with them.

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?

Use is implied — call this when a bid needs to be assembled — but there is no explicit when-to-use statement, no prerequisites, and no mention of an alternative tool. The context is inferable but not stated.

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