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

With no annotations provided, the description carries the full burden and largely succeeds: it discloses pricing, HTTP 402 when unpaid, X-PAYMENT requirement, pagination via before, and that the same URL returns JSON after payment. It does not describe the response JSON shape or side effects, but for a paid GET endpoint the key behavioral facts are present.

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 and price, and nearly every sentence carries operational information. Phrasings like 'Not a new SKU' and the run-on 'FRB institution C&D / written-agreement / PCA text GET ?id=' are slightly cryptic but not bloated.

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 no annotations and no output schema, the description covers endpoint, payment failure, auth/payment header, pagination, and per-request pricing. It would be more complete with a note about the JSON response contents or the meaning of 'chunk,' but an agent has enough to call the tool correctly.

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%, and the input schema already provides strong per-parameter meaning for id, page, before, and x_payment. The main description mostly restates these semantics with pricing, so it adds little beyond what the schema already gives.

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 points to a specific endpoint (GET https://ticks.bnm.farm/frb-orders) and a specific resource: FRB institution C&D / written-agreement / PCA text. It also distinguishes plain GET, ?id=, and ?before modes. It does not explicitly state 'retrieves FRB orders' or differentiate from the many sibling *-orders tools, so it misses a 5.

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 concrete usage guidance: plain GET returns the newest chunk, ?id= returns one official text, ?before returns an older chunk, and X-PAYMENT is required for paid access. It does not name sibling tools or say when to choose this over another orders tool, but the usage modes are clearly laid out.

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