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

With no annotations, the description carries the full burden and clearly discloses payment requirements, the 402 failure mode, the need for a valid X-PAYMENT, and that the same URL then returns JSON. This is essential behavioral context beyond what the schema provides.

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 with the URL, price, and payment instructions. It avoids filler, though the phrase 'not a new SKU' is somewhat cryptic and could be clearer.

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?

Given the lack of an output schema and annotations, the description covers the key operational facts: how to fetch newest/older chunks, how to fetch a single text, how payment works, and what failure status to expect. It does not describe the JSON payload structure or what a 'chunk' contains, leaving some uncertainty.

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 input schema already documents all four parameters, so the baseline is 3. The description adds endpoint-level pricing, the payment destination, and the response behavior after a valid X-PAYMENT, which supplements the parameter-level documentation with cost and outcome meaning.

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 a GET endpoint and the resource: CFTC institution enforcement-order / settlement text. It also distinguishes the main retrieval modes (plain GET, ?id, ?before), although it does not explicitly contrast this tool with sibling agency-order tools beyond the CFTC label.

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?

It gives concrete usage rules: plain GET returns the newest chunk, ?before retrieves an older chunk, and ?id gets a single official text, each with a price. It does not explicitly name alternative tools or exclusion cases, but the routing conditions are clear.

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