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

No annotations are provided, so the description carries the full burden. It discloses key behaviors: the quote is binding, valid for only 15 minutes, and no execution or credit consumption occurs at quote time. It also mentions the API key requirement, which is important for authentication. However, it does not detail what happens after the 15-minute validity expires (e.g., whether a new quote is needed) or the exact format of the quote_id, leaving some gaps. These are minor compared to the critical disclosures it does include.

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?

The description is concise, consisting of three sentences that are front-loaded with the core purpose ('Request a FREE commercial quote for: Glacier Retreat Monitoring'). It efficiently covers the key details (binding price, 15-min validity, no costs, next step, and auth requirement) without redundancy. Every sentence adds value and there is no fluff.

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?

Given the simplicity (0 parameters, no output schema), the description is nearly complete. It covers the action, the cost, the time limit, the follow-up action, and authentication. Minor gaps include lack of detail on what happens after expiration and the exact structure of the response (e.g., expected JSON keys), but these are not critical for an agent to call the tool correctly. Overall, it is contextually sufficient for the tool's simplicity.

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?

With zero parameters and 100% schema coverage (the schema is empty, all parameters are absent), the description doesn't need to clarify parameters. The baseline for tools with no parameters is 4, as the description has no parameter responsibilities. The description does add context that the quote is free and has no execution, which indirectly clarifies parameter intent (no parameters needed). This is sufficient.

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 clearly states the tool's purpose: to request a free commercial quote for 'Glacier Retreat Monitoring' using satellite change detection. It uses specific verb+resource ('Request a FREE commercial quote' for 'Glier Retreat Monitoring') and includes the subject matter, distinguishing it from sibling tools that cover different topics. The mention of 'satellite change detection' adds specificity that separates it from other quotes.

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 provides clear context for when to use this tool: to obtain a quote for this specific service. It also explains the follow-up step ('Use execute_quote with the quote_id to run it'), which guides the agent on the next action. However, it does not explicitly state when NOT to use this tool versus siblings (e.g., when a different quote type is needed), but the subject matter makes it obvious.

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