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

With no annotations, the description carries the full behavioral burden. It does disclose that the operation is paid and returns 'an RVO plus signed R/IV Verification Receipt,' which is useful context, but 'RVO' and 'R/IV' are never defined and no auth requirements, cost, idempotency, or failure behavior are given.

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 short sentences that are front-loaded, but the opening repeats the tool name verbatim and leans on acronyms that are never expanded. It is compact but partly wasted on redundancy and opaque notation.

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 verification primitive with no annotations and no output schema, the description should explain what is verified, what the receipt guarantees, and the cost model. Instead it names undefined artifacts, leaving the agent unable to predict behavior or interpret results.

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?

The tool takes zero parameters, so per the rubric the baseline is 4. There is nothing for the description to clarify about inputs.

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 calls itself an 'independent evidence-verification primitive for agent assurance,' which gestures at a verification action but is built on undefined jargon ('R/IV', 'RVO', 'primitive'). It never states what specifically is being verified or how it differs from the many sibling verify tools (citation.verify, claim.check, number.verify, source.verify, etc.). An agent cannot reliably tell this apart from its alternatives.

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 guidance on when to invoke this tool, when not to, or which sibling verification tool is the correct alternative. Given a large cluster of near-identical verify/audit tools, the absence of routing guidance is a serious gap.

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