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

With no annotations provided, the description must carry the full burden of behavioral disclosure. It does not state whether the operation is read-only, whether it has side effects, or what happens on invalid receipts (e.g., error codes or success/failure format). It only mentions the core action and the optional digest re-verification, leaving behavioral traits largely undisclosed.

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 a single, front-loaded sentence that delivers the primary purpose and the optional flag without any filler. It is compact and every word earns its place, making it efficient for agent parsing.

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 that an output schema exists (though not shown), return values are likely covered there. The description captures the essential inputs and the optional digest verification, which is sufficient for a simple validation tool. However, the absence of annotations and any mention of error behavior leaves minor gaps, but overall the context is adequately covered.

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 0%, so the description must compensate. It explains that 'receipt' is the JSON to validate and that 'content' is optional and used to re-verify the delivery.digest. This adds meaning beyond the raw schema property names, though it does not elaborate on formats or constraints beyond that.

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 states the tool validates a tool delivery receipt against the v1 schema, which is a specific verb and resource. It also mentions the optional content re-verification of delivery.digest, distinguishing it from a simple schema retrieval tool like tool_delivery_receipt_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 implies its usage by stating it validates receipts and optionally verifies the digest, but it does not explicitly contrast with siblings such as verify_tool_result_digest or tool_delivery_receipt_schema. The implied context is that you use it when you need schema validation, possibly combined with digest verification, but there is no explicit when-to-use or when-not-to-use.

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