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

Annotations already cover the safety profile (readOnly, non-destructive, closed-world), so the bar is lower, and the description still adds real context: verdicts derive from the signed envelope rather than stored state, which is the core trust property of a verification tool. It also discloses that results are per-receipt and never averaged, which shapes how the agent interprets output.

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?

Two tight sentences with zero filler. The granularity claim is front-loaded and the trust-model detail follows immediately; 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?

There is no output schema, so the description must convey the shape of results, and the 'per-receipt, never an average' statement does exactly that at the right level. The main remaining gap is that it doesn't describe what an individual verdict contains, but for a two-parameter verification tool this is close to complete.

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 both parameters are fully documented there, including the 'sample' sentinel and the published-issuer-key fallback. The description adds no syntax, format, or constraint detail beyond the schema, 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 (verify) and a specific resource (a review/evidence pack), and 'receipt by receipt' pins down the granularity of the operation. The name/title imply the distinction from the sibling verify_receipt (single receipt), but the description itself never names that sibling, so differentiation is left to the title.

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: this is the tool for verifying an entire pack rather than one receipt. However, the description never states when to prefer it over verify_receipt or get_review_pack, nor does it list prerequisites, so the agent must infer the routing.

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