savings

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

With no annotations provided, the description carries the behavioral disclosure burden. It indicates a read-only reporting behavior by saying 'Show' and names the output categories, but it does not disclose data sources, freshness, or what exactly 'kept off your premium quota' means. This is acceptable but minimal.

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 a single, focused sentence that leads with the action and object, then adds a clarifying parenthetical. Every word contributes meaning, and there is no wasted or redundant content.

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 zero-parameter read-only savings overview with an output schema available, the description conveys enough purpose and scope to guide an agent. It could elaborate on what 'premium quota' encompasses or what estimates/list prices derive from, but these are minor gaps for such a simple tool.

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?

The tool has zero parameters, so there is no parameter documentation burden. The description still adds semantic context by explaining what the savings refer to: delegation effects on premium quota, estimates, and list prices.

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: showing the savings that delegating has produced, specifically in terms of premium quota, estimates, and list prices. It uses a specific verb and resource, making it distinguishable from sibling tools like delegate and list_models, though it does not explicitly name 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?

The description implies the tool is for viewing delegation-related savings, but it gives no explicit guidance on when to use this tool versus delegate or list_models. No when-not-to-use conditions or alternative recommendations are provided.

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