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

With annotations already covering the read-only/idempotent/open-world profile, this description adds material behavior the agent could not infer: a $0.01 cost, a two-step payment flow (returns payment requirements plus the URL to call once paid), and a free sample endpoint. Disclosing cost and the pay-before-read flow is exactly the kind of context that prevents misfires.

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?

It is dense and front-loaded — the core purpose and the per-chain breakdown come before cost and links. The closing claim that 'an LLM cannot produce this from training data' is promotional filler that does not help an agent invoke the tool, costing some efficiency.

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 tool with no output schema, the description fully describes the return surface (severity-ranked flags with evidence, verdict, 0-100 score, coverage of what was read) as well as the non-obvious payment handshake. An agent has everything needed to call it and interpret the first 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 coverage is 100%, so both parameters (mint, chain) are already fully documented upstream, including the 0x/base58 chain-format rules. The description's 'on any chain' phrasing is consistent with the schema but adds no syntax or edge-case detail beyond it, so the baseline 3 applies.

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 gives a specific verb and resource ('Token rug risk check') and then breaks down exactly what is checked per chain family (Solana mint/freeze authority, EVM honeypot/tax, Tron/Sui scanner results). It is highly legible on its own, but it never differentiates itself from overlapping siblings such as check_token_holders or base_token_risk_changes, which also surface holder/risk data.

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 rhetorical hook 'is this token safe to buy?' implies the use case, but there is no explicit when-to-use vs when-not guidance and no named alternative among the several token tools (check_token_holders, base_token_risk_changes, get_token_snapshot). The per-chain coverage list gestures at scope but not at tool selection.

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