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

The description states 'Uses buyer-supplied information only; no external research or outbound actions,' which directly contradicts the annotation openWorldHint=true. This is a clear annotation contradiction. While the description discloses payment requirements and the output draft, the contradiction undermines behavioral transparency.

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 compact and front-loaded. Each sentence serves a purpose: the first states what the tool produces, the second constrains inputs and actions, the third indicates the output nature, and the fourth covers pricing and authorization. There is no redundant or filler text.

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 has nested objects, multiple technical parameters, and no output schema, yet the description only explains the core output and payment. It does not explain the purpose of result_expires, idempotency_key, result_signature, or payment_signature, nor the exact expected behavior around these fields. The contradiction with annotations further reduces completeness.

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%, yet the description does not explain the purpose of key parameters like 'brief', 'audience', 'source_text', 'idempotency_key', or 'result_expires'. It vaguely mentions 'buyer-supplied information' and 'Payment requires explicit wallet authorization,' but this is insufficient to compensate for the complete lack of parameter documentation.

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 identifies the tool's purpose: designing a 'timed educational webinar agenda' including learning outcomes, demonstrations, and audience questions. It is specific about the output type, but it does not explicitly differentiate from similar outline tools like podcast_outline or training_outline.

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 useful constraints—'Uses buyer-supplied information only; no external research or outbound actions'—which implies when the tool is appropriate. However, it does not explicitly state when to choose this tool over alternatives or name any sibling tools.

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