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 meaningful outcome semantics: nothing is bought/ordered/paid, no quote is guaranteed, and it is free. However, it says little about this tool's own behavior (side effects, permissions, return shape beyond a content list), so coverage is partial.

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 directive 'Read first.' is front-loaded and the remainder is compact, with each clause adding a distinct fact. The second sentence is dense and slightly run-on, which keeps it short of a perfect score.

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, annotation-free read tool with no output schema, the description supplies the essentials: what triggers it, what it returns, and the key semantic caveats (free, non-binding). It is largely self-sufficient, with only minor gaps around confirmation/permission behavior.

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 the schema is trivially complete and there is nothing for the description to disambiguate. Baseline for a no-parameter tool is 4.

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 establishes this as a read-only informational tool that explains the enquiry process behind submit_enquiry, and it names concrete returned content (who receives details, consent wording, confirmation method). It is distinguishable from the submit_enquiry sibling, though the framing ('states plainly what submit_enquiry does') is slightly meta and describes the payload rather than a crisp verb+resource.

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?

'Read first.' gives an explicit sequencing directive that positions this ahead of submit_enquiry and other enquiry tools. It implies the read-before-write pattern but does not spell out when NOT to use it or name an explicit alternative, so it stops short of a full 5.

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