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

With no annotations, the description carries the full burden and does well: it discloses per-source labeling (ok/unavailable), no stale fill, the paid in-band x402 payment model ($0.02 USDC on Base), and an alternate HTTP endpoint. It omits rate limits, auth beyond payment, and error behavior, so it stops short of 5.

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?

Front-loaded with the resource and scope, then packed with useful detail (fields, labeling, payment, alternate endpoint). Dense single block with some run-on phrasing, but nearly every clause earns its place.

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?

No output schema exists, yet the description enumerates the returned document fields and source-status semantics, and covers the payment/pass mechanics. Complete enough to invoke correctly; only edge-case behavior (empty results, partial failures) is unaddressed.

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?

One optional parameter with 100% schema description coverage, so the schema already documents the day-pass token fully. The description adds no syntax or semantics for 'pass', though it does explain the x402 payment context that the token bypasses.

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?

States a specific verb+resource: CFTC/SEC crypto rulemaking from the last 90 days, enumerating doc types (ANPRM/NPRM/final/notice) and fields (RIN, comment deadline, stage-change flag). This clearly separates it from siblings like get_gov_contracts and get_rwa_feed.

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?

Usage is implied by the content scope (regulatory rulemaking feed), but there is no explicit when-to-use, when-not, or named alternative among siblings. The payment note tells the agent the cost but not when this tool is the right pick over the other feed tools.

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