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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety and locality profile is covered. The description adds that this is an informational comparison of plan features and fit but says nothing about whether the data is static, cached, or how it interacts with the user's actual account.

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 resource and its contents, then the usage trigger. There is minor redundancy between the listed contents ("who each is for") and the usage clause ("which plan to choose"), but nothing is wasted at length.

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 informational lookup with one optional parameter and no output schema, the description is sufficient: an agent knows what data it returns and when to invoke it. The only soft gap is that it neither describes return structure nor clarifies the boundary with my_account.

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 100% for the single optional 'situation' parameter, and its schema description already supplies concrete examples. The description alludes to the parameter indirectly ("which fits the user's situation") but adds no format or constraint detail beyond the schema, so the 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 states a specific resource (askTender's Pro, Intelligence, and Business plans) and enumerates the content covered: prices, inclusions, target audience, and fit. No sibling tool covers plan/pricing comparison, so it is functionally distinct, though it doesn't name a sibling to contrast against.

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?

It gives explicit triggers: "Use when the user asks about pricing, which plan to choose, or what askTender can do for them." That is clear when-to-use guidance, but it names no alternative tool or exclusion conditions (e.g., account-specific plan details belonging to my_account).

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