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

With no annotations, the description carries the full burden, and it does disclose two non-obvious traits: execution is paid, and a completed run returns an RVO plus a signed verification receipt. However, it omits cost, authorization requirements, idempotency, and what failure/incomplete execution 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?

Two compact sentences with no filler, and the primitive/purpose statement is front-loaded. But the density comes from unexplained acronyms (R/IV, RVO) rather than information, so brevity is not matched by clarity.

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 zero-param tool with no output schema, the description is the only source of truth, and it should explain the return artifacts and the trigger condition. It gestures at the return (RVO + signed receipt) but never defines them or says when a caller should reach for this tool over its many siblings.

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 there is nothing for the description to disambiguate. Per the baseline for parameterless tools, a 4 is appropriate; no parameter-level gaps exist.

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?

It names a domain ('vendor diligence') and calls itself an 'independent evidence-verification primitive for dependency risk', which hints at a verification action, but the opaque 'R/IV' and 'RVO' jargon means an agent cannot confidently state what the tool actually produces. It also fails to distinguish itself from close siblings like vendor.monitor, dependency.map, or procurement.evidence.

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 statement of when to use this versus the ~30 sibling verification/monitoring tools, nor any prerequisites, exclusions, or conditions. The only usage-adjacent clue is 'Completed paid execution', which implies a transaction but not a selection rule.

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