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

The annotations already declare readOnlyHint=true, so the safety profile is established. The description adds that the list contains registered public services and their channels, which is useful, but it does not disclose return shape, pagination behavior, or default limits. Given the read-only annotation, a 3 is appropriate.

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 core guidance is compact and front-loaded: it states the action, resource, and use case in one efficient sentence. The trailing 'norm.' and the German parenthetical add minor noise, but the main content is concise and well ordered.

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?

For a read-only list operation with all optional parameters, the tool is minimally callable with no arguments, so the description is usable. However, there is no output schema, no return-shape description, and no guidance on pagination defaults or filter semantics, leaving meaningful gaps for an agent deciding how to refine a call.

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 0%, and the description provides no additional meaning for lang, page, limit, publisher, or registration_status. The parameter names are somewhat self-explanatory, but important values such as allowed registration_status values or publisher format are left undocumented. With low schema coverage, the description should compensate, and it does not.

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 identifies a specific resource ('registered public services') and adds the categories Behördenleistung, Dienstleistung, Verwaltung, which clarifies what kind of objects are listed. It also states the intended use case ('what an authority offers citizens'). It does not explicitly differentiate from sibling tools like i14y.list_data_services, but the resource scope is specific enough to avoid major ambiguity.

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 provides a clear usage context: 'use for what an authority offers citizens,' which helps an agent decide when this tool fits. It does not explicitly name alternatives or state when not to use it, but the context is sufficient for a basic routing decision among the i14y sibling tools.

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