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

Annotations already mark the tool as read-only, idempotent, and non-destructive, and the description adds no side effects; it frames the tool purely as an explanation of the exchange. The 'read-only evidence work' phrasing reinforces the safe read-only nature, and there is no contradiction or hidden behavioral trap.

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 sentence that front-loads the directive ('Start here'), states the subject, and enumerates the lifecycle in a compact, scannable list. Every clause contributes information, with no filler or redundancy.

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-parameter, read-only overview tool, the description is largely complete: it tells an agent what the tool is for, what content it covers, and that it is the entry point. No output schema exists, but the expected explanatory text is implied by 'Explain'; a bit more about the return shape would push it higher.

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 has no parameters, so the baseline is 4; the schema already documents all zero params at 100% coverage. The description appropriately focuses on content and purpose rather than parameter semantics, since there are no parameters to clarify.

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 opens with the imperative 'Start here' and a clear verb-resource pair – 'Explain the PrivateDAO Agent Exchange' – then names the lifecycle stages (discover, request, quote, execute, verify). This distinguishes it from more targeted sibling guides like execution_guide or payment_guide, even though those siblings are not explicitly mentioned.

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?

'Start here' explicitly marks this as the entry point to the exchange tool family, giving an agent a clear condition for choosing it. It does not spell out when to prefer a sibling such as execution_guide or payment_guide, but the phrase provides strong contextual guidance.

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