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

With no annotations provided, the description carries the transparency burden and covers a lot: pricing, the 402 failure mode, the JSON response after payment, and the semantics of newest/older/watermark retrieval. It does not describe response fields or other error cases, but the essential behavioral traits an agent needs are disclosed.

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 dense and front-loaded with the endpoint and price, and almost every clause adds a distinct operational fact. It lacks formatting breaks, but at this length that is acceptable and there is no filler.

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 paid multi-mode GET with five optional parameters and no output schema, the description covers payment, error behavior, JSON return, and the conditions for id/before/since, while the schema covers page and x_payment details. The main omission is the exact JSON response shape, but the definition is otherwise sufficient for correct selection and invocation.

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 baseline is 3, but the description adds meaningful context beyond the schema: it explains that a plain GET yields the newest chunk, attaches costs to specific parameter modes, and clarifies that id-based retrieval is the same door, not a new SKU. This enriches the already detailed parameter descriptions.

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 resource as FMC Initial Decision / Commission Order text served from a paid GET endpoint, and enumerates the retrieval modes: official text via ?id=, newest chunk on a plain GET, and older/newer chunks via ?before and ?since. The FMC-specific naming helps distinguish it from the many sibling agency-order tools, though it does not explicitly name a sibling alternative.

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 explicit conditions for each invocation variant: plain GET for the newest chunk, ?id= for one official text, ?before for older chunks, and ?since for items newer than a watermark. It also states payment behavior, including HTTP 402 when unpaid and JSON after a valid X-PAYMENT, but it does not directly compare against sibling tools.

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