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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the tool is free and returns published schemas, but it does not mention authentication requirements, rate limits, error behavior, or other operational details.

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 short, front-loaded with the key 'Free' detail, and every sentence contributes useful information about cost, output, and intended use. There is no redundant or filler 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 simple three-parameter retrieval tool with full schema coverage, the description adequately explains what is returned and why to use it. It is slightly incomplete in not mentioning the tool-slug kind supported by the schema, but the schema itself makes that clear.

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%, so the schema already documents all three parameters and their enums. The description adds little parameter-level detail beyond restating that the result is for a mode or action, and it omits the tool-kind option covered by the schema.

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 that the tool returns a published request or response JSON Schema for one mode or one action. It is specific about the resource and output, but it does not explicitly distinguish itself from siblings such as sandbox_call or list_actions.

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 gives a clear usage context: use it to build a request that will validate before paying for a call. It does not explicitly state when not to use it or contrast it with alternatives like sandbox_call, but the intended usage is clear.

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