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

The description adds a caution that it is 'Not legal advice', which is a useful disclosure. However, it does not explain the behavior beyond 'screen' or mention limitations, side effects, or what the screening entails. Annotations already cover read-only and idempotent nature, so the bar is lower, but the added context is minimal.

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, concise sentence that avoids unnecessary detail. It is well-structured and directly to the point, with no redundancy.

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 is incomplete regarding the tool's output and how to interpret the screening result. It does not mention the return format, possible outcomes, or any contextual details about the EU AI Act applicability criteria. This lack of context makes it difficult for a user to know what to expect.

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?

The description provides no information about the input parameters (e.g., biometric, education, employment, etc.). It does not explain how these fields are used in the applicability screening. The schema has low coverage, and the tool description fails to compensate.

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 clearly states the tool's function as an 'EU AI Act compliance / AI Act applicability screen', referencing the official regulation. It is specific and distinct from sibling tools like OFAC screening or VAT validation.

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 description does not provide any guidance on when to use this tool over alternatives, nor does it mention conditions, prerequisites, or typical use cases. It simply states what the tool does without context.

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