list_tip_suggestions

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

Annotations already indicate a read-only operation, but the description adds the auth requirement (MERCHANT_R) and the nature of the returned data (percentage or flat amount presets), providing useful behavioral context beyond the annotations.

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 front-loaded sentence that states the action, resource, and permission without any superfluous words.

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 simple list tool with no parameters and an existing output schema, the description provides the essential context: what is returned, the format, and the required permission. It is complete for its complexity.

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 no parameters, so the schema fully covers everything. The description adds no parameter-specific details, but per the rubric, a zero-parameter tool receives a baseline of 4.

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 verb 'Return' and the resource 'merchant's tip-suggestion presets' with the additional detail of 'percentage or flat amount', making it specific and distinguishable from sibling tools. It also includes the required permission, enhancing clarity.

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 by stating exactly what the tool returns and the required permission (MERCHANT_R), allowing the agent to infer when to use it. However, it does not explicitly mention alternatives or exclusions, so it falls short of the highest bar.

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