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

With no annotations, the description carries the full burden. 'Return' weakly implies a read-only operation, but there is no disclosure of auth requirements, rate limits, or what 'free state' versus 'introductory paid pricing' actually resolves to. The trailing 'Free.' is ambiguous rather than informative.

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?

It is short, but the single sentence is vague and the disconnected fragment 'Free.' wastes space without earning its place. Front-loading is fine in length terms, but the content is not information-dense.

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?

An output schema exists, so return values need not be explained. However, for a tool with a confusing, jargon-laden purpose and no annotations, the description leaves the agent unable to predict what the call yields or when to invoke it.

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 schema declares zero parameters, so there is nothing for the description to clarify. Baseline 4 applies for a no-arg tool; a higher score would require the description to explain what the no-arg call retrieves.

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 largely restates the name, then adds opaque jargon ('Public Discovery free state and intended introductory paid pricing') that an agent cannot map to a concrete resource. The trailing fragment 'Free.' adds confusion rather than specificity, and nothing distinguishes it from siblings like aios_status or get_capability.

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?

No when-to-use guidance, no conditions, and no mention of alternatives among the five sibling tools. The agent is given no basis for choosing list_pricing over aios_status or list_capabilities.

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