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

No annotations are provided, so the description carries the full behavioral burden. It discloses the verification method (Ed25519) and that a gate decision is produced, but says nothing about failure semantics, error behavior, permissions, or what a valid/invalid verdict looks like.

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?

A single, front-loaded sentence with no wasted words. Its brevity is appropriate, though it sacrifices detail that this tool arguably needs.

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?

With no output schema, no annotations, and a nested parameter at 0% coverage, the description should explain the receipt structure and what 'gate decision' means. It does neither, leaving an agent unable to construct the input or interpret the result confidently.

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 coverage is 0% and the single 'receipt' parameter is an opaque nested object. The description hints that the receipt contains a signature and id, which adds some meaning, but it does not document the object's expected shape or required fields.

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 names a specific verb (Verify) and a precise resource (a survival receipt's Ed25519 signature and id), plus an extra output (gate decision), which clearly separates it from generic siblings like annsurv_check. It is not a tautology, though it never explicitly contrasts itself with annsurv_receipt_query.

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?

There is no indication of when to reach for this tool versus annsurv_check or annsurv_receipt_query, no prerequisites (e.g., a receipt must already be fetched), and no exclusions. The agent is left to infer the workflow entirely.

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