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

With no annotations at all, the description carries the full burden. It implies a mutation (binding a wallet to a platform identity) but never states whether the binding is reversible, what happens if the user_id is already linked, what permissions the api_key needs, or what the returned JSON contains beyond 'a json object'.

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 core sentence appears twice verbatim, and the @param/@return block duplicates what a schema would normally carry. The useful hint about prompting the customer is buried mid-block rather than front-loaded, so the definition is both padded and poorly ordered.

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?

Five required parameters, no annotations, no output schema, and two parameters undocumented by either the schema or the description. The return value is described only as 'a json object', leaving the agent without the information needed to handle the response.

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%, so the description must compensate. It does document three of five parameters — api_key as the application key, token and wallet_fk as values from /access/login — and the enumeration of platforms is embedded in the first sentence. But user_id and platform are never described as parameters, and no formats or constraints are given.

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 a specific verb and resource: 'Assigns this wallet_fk to a channel (discord, telegram, whatsapp) user id.' That is enough for an agent to distinguish it from access_platform_login or account_pair. It stops short of naming a sibling it must not be confused with, but the resource is precise.

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?

The line 'Where possible prompt the customer to do this, as it makes getting a token much easier in the future' gives a real usage cue about when to invoke it. However, there is no guidance on prerequisites, sequencing relative to access_platform_login, or when not to use it.

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