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

With no annotations, the description carries the full burden, and it does disclose the two behaviors that matter most here: zero cost ('No payment required', 'FREE') and output parity with the paid tool ('same depth'). It omits rate limits, caching, or freshness of the data, so it is strong but not complete.

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?

A single front-loaded sentence with the value proposition (FREE) leading and the differentiation from the paid sibling following. No filler.

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?

No output schema and no annotations, so the description must cover scope, cost, and result shape; it covers scope (Base USDC), cost (free), and result shape (SAFE/CAUTION/AVOID verdict, same depth as paid). Only freshness/latency and exact response fields remain unstated, which are minor for a no-param read tool.

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?

Zero-parameter tool, so the baseline is 4. The description compensates usefully by fixing the implicit argument — the report is scoped to Base USDC — telling the agent what it will get without passing anything.

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?

States a specific verb and resource ('full real trade-safety report ... verdict') for a specific asset (Base USDC), and explicitly names the sibling paid tool chain_token_report it mirrors. An agent can distinguish it from chain_token_security and chain_token_report without opening a schema.

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?

Makes the selection condition clear: it is the FREE, no-payment-required counterpart to chain_token_report with the same depth, so an agent knows to prefer it when cost matters. It stops short of stating when the paid tool would be required instead.

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