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

With no annotations, the description carries the full burden and does it exceptionally well: it discloses the $0.05 cost, non-custodial nature, absence of signing, absence of fund movement, and the decision output. This is strong behavioral disclosure beyond what any structured field provides.

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?

Three short sentences with no filler: cost is front-loaded, the tool's scope is summarized, and the critical safety caveats ('Signs nothing, moves no funds') are explicit. Every clause earns 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?

The description covers purpose, key outputs, cost, and side effects, which is substantial given there is no output schema and no annotations. It is missing explicit guidance on the x402 payment flow (described in the schema) and input semantics, so it is not fully complete on its own.

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 only 25% (only x402Payment has a schema description), so the description must compensate for the other parameters. It does not explain chain, venue, borrower, nor the two-call x402 payment handshake, adding almost no parameter meaning 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 names a specific resource ('a liquidation target') and enumerates concrete outputs (liquidatable, repayable amount, gross seize bonus, estimated net after gas, go/no-go), which clearly distinguishes it as a quote/economics tool. It does not explicitly use a verb like 'quote' or 'evaluate' and does not name a sibling alternative, so it falls just short of a 5.

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 'go/no-go' phrasing and 'Signs nothing, moves no funds' imply this is a pre-execution decision tool, and the non-custodial note rules out actual execution. However, it never names alternatives such as farm_liquidations or states the explicit conditions for choosing this tool over them, leaving usage selection to inference.

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