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

Annotations already disclose that this is a non-read-only, non-idempotent, non-destructive, open-world operation. The description usefully adds that the quote is expiring and incurs no charge, but it omits the quote TTL, whether capacity is held, and what state or identifier is returned.

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?

A single front-loaded sentence with no filler. Every phrase contributes either the action, the object, or a key constraint.

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?

The tool is structurally simple, but the description leaves node semantics unexplained and does not say how the expiring quote is returned or how long it lasts. For a 3-parameter required tool with no output schema, this is adequate but incomplete.

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% for all three required parameters. The description's 'GPU quote' context weakly implies that count is a GPU quantity and hours is a duration, but it says nothing about the required node UUID or acceptable ranges.

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 gives a specific verb and resource: 'Create a fresh expiring GPU quote,' and clarifies it does not rent or charge. This distinguishes it from emt_rent, though it does not explicitly differentiate it from sibling quote tools like emt_cluster_quote or emt_experiment_quote.

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?

'Without renting or charging' implies the tool is for pricing-only use, which gives useful context. However, no sibling alternatives are named and there is no explicit guidance on when to prefer this over emt_rent or the other quote tools.

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