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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so safety is covered structurally. The description adds genuine state semantics ('saved is not sent; a quoted price is not a confirmed booking'), but the cryptic clause about a separate credential's private projection is confusing rather than clarifying.

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?

It is only two sentences, but they are dense and one clause is dedicated to a different credential/tool rather than this tool. That sentence does not earn its place and the state distinctions arrive back-loaded after the confusing credential aside.

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?

There is no output schema, so the description carries the burden of explaining what a read returns, yet it only gestures at 'versioned merchant replies' without describing structure or format. For a read tool with a paltry 0%-coverage schema, this leaves the agent under-informed.

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 description coverage is 0% and the single required request_id carries a regex pattern that the description never explains. 'This grant-created inquiry' weakly links request_id to an inquiry, but the format and origin of the identifier are left undocumented in both schema and description.

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 verb 'read' and resource 'grant-created inquiry and merchant replies' are present, so the core action is discernible. However, it never distinguishes itself from the sibling evuun_list_service_inquiries (single vs list), and the phrases 'grant-created inquiry' and 'versioned merchant replies' are jargon that requires prior context to interpret.

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 tool versus alternatives like evuun_list_service_inquiries or evuun_get_commerce_capsule. The middle clause describes what a different 'owner-approved follow-up credential' does, which is not guidance for invoking this tool.

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