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

With no annotations, the description carries the full burden and discharges most of it: it discloses the deterministic rules engine, the statute-citation behavior, what the free call actually returns (federal result plus a locked count of state findings), the paid boundary, and the legal disclaimer. It stops short of describing response shape or failure/edge behavior, keeping it out of the top band.

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 core purpose and scope, then the differentiators and the disclaimer. Dense but every sentence carries information; the pricing/purchase line is the only marginally promotional element, which is still relevant to expectations.

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 nine-parameter analysis tool with no output schema, the description explains what the free invocation returns and where the rest of the data lives, plus the informational-not-legal-advice caveat. It is complete enough to call correctly, with only minor gaps around return structure.

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 all nine parameters are already documented in the schema with clear examples (e.g. sells_states state codes). The description adds jurisdiction context but no per-parameter meaning beyond what the schema provides, so the baseline of 3 applies.

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 (score) plus resource (a subscription business's signup/cancellation flow) against a named body of law (US click-to-cancel/automatic-renewal rules, FTC Section 5/ROSCA plus state statutes). An agent can tell exactly what this produces without opening the schema.

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 clarifies scope and the free-vs-paid tier split (free returns federal only; the full 5-jurisdiction report is a paid purchase), but never states an explicit when-to-use or when-not condition, and there are no sibling tools to route against. Usage is only implied by the compliance-check framing.

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