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

No annotations are present, so the description carries the full burden, and it delivers little: it never states whether this is read-only, what happens when the wallet is unverified, or what fields the returned JSON contains. 'Checks whether... verified' implies a safe read, but nothing confirms it or explains the failure path.

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?

Structure is front-loaded (purpose first, then params, then return), which is good, but the opening sentence is repeated word-for-word, wasting the most valuable line. Everything else is terse enough.

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?

With no annotations and no output schema, the description should at least sketch the shape of the result, yet it only says 'a json object'. The parameter documentation is adequate, but for a check tool whose entire value is the verification verdict, the return contract is left undefined.

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 coverage is 0%, so the description must compensate, and it largely does: it identifies api_key as the key allocated to the application and tells the caller that token and wallet_fk come from /access/login. That provenance is genuinely useful and not present in the bare schema, though the parameter meaning itself is still thin.

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?

States a specific verb+resource: a check of whether the wallet/customer has been verified. The purpose is immediately graspable, but the sentence is duplicated verbatim and the description never distinguishes this from nearby siblings like wallet_kyc_check_lite or wallet_verify, so it stops short of a 5.

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 when-to-use guidance, no prerequisites, and no mention of the lite variant or any alternative. The agent is left to infer when this check applies versus wallet_kyc_check_lite or wallet_verify.

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