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

With no annotations provided, the description must carry the behavioral disclosure burden itself; it does convey that this is a read-only information-returning call and lists the expected outputs. However, it does not mention external dependencies, whether the conversion rate is current, or any side effects, leaving full transparency incomplete.

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 short, front-loaded with the action, and each subsequent clause adds concrete return-value detail: wallet address, USDC contract, conversion rate, and instructions. There is no filler or gratuitous restatement beyond minor reuse of 'instructions.'

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 zero-argument information tool with an output schema, the description is complete: it names the data returned and the intended use. An agent does not need additional context to select and invoke this tool correctly.

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?

The input schema has zero parameters and schema description coverage is 100%, so there is no parameter information the description needs to add beyond the schema. The 0-parameter baseline applies here, and the description introduces no input ambiguity.

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 ('Get USDC deposit instructions') and clearly states the purpose (buying MolTrust credits). It distinguishes itself from siblings such as moltrust_claim_deposit and moltrust_deposit_history by being the informational 'how to deposit' tool.

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 phrase 'to buy MolTrust credits' gives a clear use context: use this when an agent needs USDC deposit instructions for purchasing credits. It does not explicitly name exclusions or alternatives, so it falls just short of a 5.

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