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

With no annotations provided, the description carries the full safety-disclosure burden. It does disclose a key behavioral trait—that no payment is made—which is important for an agent to know. But it omits other behaviors such as whether the operation is read-only, what validation occurs, error handling, or response format.

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 a single sentence with no wasted filler, but it is crammed with domain-specific jargon ('x402', '0.50 USDC bundled risk-pack upsell', 'ACP') that makes it hard to parse. It is concise in length but not optimally structured for clarity.

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 exists, and the description gives only a vague list of what is returned (endpoint, upsell, metadata) without explaining their structure or meaning. An agent lacks sufficient context to know what to expect from the tool's response, making the description incomplete for a moderately complex 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?

Schema coverage is only 50% (token_addresses has a description, chain has none), and the tool description adds no parameter details whatsoever. The name implies 'batch' refers to multiple addresses, but the description does not compensate for the undocumented chain parameter or explain edge cases.

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 uses a specific verb 'Return' and identifies the resource as checkout metadata for a paid x402 contract-risk batch, which distinguishes it from execution tools. It also clarifies that no payment is made, helping differentiate it from checkout execution siblings. However, the dense terminology (x402, risk-pack, ACP) slightly clouds immediate comprehension.

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 'without making a payment' implies this tool is for retrieving metadata before payment, which gives useful context. However, it does not explicitly name alternatives like contract_risk_preview or token_safety_free_preview, nor does it state when not to use this tool.

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