ScreenSeal

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

No annotations exist, so the description carries the full load and does well: it discloses the return shape (fuzzy matches with confidence scores, per-list provenance with versions/URLs/SHA-256 digests, EIP-712 attestation) and the legal limitations. It omits auth requirements and any rate limits beyond the 'free during launch' hint, which keeps it from a 5.

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 sentences, front-loaded with the core action and datasets, followed by return details and the disclaimer. Dense but each sentence contributes; the disclaimer sentence is long but legally necessary context.

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, and the description compensates by summarizing the response contents (matches, confidence, provenance, attestation). It lacks auth/permission and pagination detail, but for a read-only screening call the definition is nearly complete.

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%, so all three parameters (name, dob, nationality) are already fully documented with formats and constraints. The description adds no parameter-level meaning beyond the collective 'person or organization name' framing, 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?

States a specific verb ('Screen') and resource ('person or organization name') and enumerates the exact datasets consulted (OFAC SDN, OFAC Consolidated Non-SDN, EU financial sanctions). An agent immediately knows what the tool does and against what 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?

Usage is implied (screen a name for sanctions exposure) and the disclaimer clarifies it is informational only, but there is no explicit when-to-use/when-not guidance or named alternative. With no sibling tools the routing burden is lighter, so this is adequate rather than strong.

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