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

Annotations are empty, so the description carries the full behavioral burden but discloses very little: it claims a json object return and mentions the digital_asset_fk field. It says nothing about auth requirements beyond the api_key param, whether results are paginated, caching or rate limits, or whether any state is affected. The repeated text also makes the behavioral claims ambiguous.

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 description is visibly duplicated – the same list statement appears twice with minor rewording – and it embeds @param/@return doc tags into prose. Not front-loaded or deduplicated, so it wastes the reader's attention before conveying the one useful fact (the digital_asset_fk handle).

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 one-param list tool with no output schema, no annotations, and no schema descriptions, the description should at minimum nail down the return shape and the chaining contract. It only vaguely says 'a json object' and hints at digital_asset_fk reuse; combined with the duplicated text, an agent cannot fully predict 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, and it does document the single parameter as 'The api key allocated to your application'. That is adequate for one param but adds no format or acquisition detail beyond a restatement of the obvious.

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 does state a clear verb+resource ('List all the supported digital assets'), but it says it twice in slightly different words and never distinguishes this from close siblings such as crypto_digitalasset_info, crypto_blockchains, currency_crypto, or wallet_assets_list. An agent can tell what it does, but not reliably why it should pick this over the alternatives.

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 explicit when-to-use guidance, no prerequisites, and no named alternative. The only usage hint is implicit: the returned digital_asset_fk is 'for later use' and is 'also applicable to to_digital_asset_fk', which hints at a downstream chaining pattern but never states the condition under which this tool should be chosen.

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