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

Annotations already declare readOnlyHint=true and openWorldHint=true, and the description adds useful context: data comes from Solana mainnet, the call costs 0.01 USDC via x402, and the payment parameter supports an optional free trial. It does not cover failure modes or rate-limit behavior.

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 purpose and returned metrics are front-loaded, which is good. However, the price is stated twice with essentially the same information, and the repeated x402 pricing parenthetical does not earn its place.

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?

There is no output schema, but the description enumerates the returned safety metrics, data source, cost, and payment behavior. That is enough for an agent to call it correctly, though response format and error behavior are not described.

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 100%, and the schema documents both the required mint and optional payment parameters. The description reinforces the mint input with an example but adds little semantic detail beyond what the schema already provides.

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 states a specific verb and resource, 'Solana token safety check,' and enumerates the exact safety signals returned. This distinguishes it from siblings like token_price or solana_top_holders, but it does not explicitly name an alternative.

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?

It tells the agent to pass a mint address to get safety data, implying use when a token safety assessment is needed. However, it gives no explicit when-to-use versus alternatives such as solana_top_holders or token_sell_check, and no when-not-to-use guidance.

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