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

The description asserts 'Nothing is read or changed', directly contradicting annotations that declare destructiveHint=true, readOnlyHint=false and openWorldHint=true. The statement about the review email is useful context, but the core behavioral claim conflicts with the structured safety metadata.

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 short and front-loads the context, but the last two sentences are largely redundant restatements of 'not supported' and 'nothing happens'. The four sentences do not build a coherent picture of the tool.

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?

A five-parameter tool with no schema descriptions, no output schema and destructive/open-world annotations needs far more: what each parameter means, whether any cost is incurred, and what an agent should do instead. Saying the tool is unsupported partly excuses the gap but does not explain the parameters or the alternative path.

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?

Five parameters with 0% schema description coverage and no parameter information in the description at all. Opaque names like 'docs', 'confirm', 'idempotencyKey' and especially 'acknowledgedAmountUsd' (which implies a monetary commitment) are left completely unexplained.

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 talks about the expert-application signup flow (document upload, review email) but never states the tool's own action — that it would submit an expert application for review. The only concrete claim is that it is unsupported, which leaves the actual purpose to be inferred from the name and title.

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?

'This tool is not yet supported' plus 'MCP will not mark an application submitted' gives an explicit when-not-to-use instruction, which is more routing help than most definitions provide. It stops short of the top score because it never names the sibling an agent should use instead, e.g. get_application_status for tracking an application.

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