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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds genuinely useful behavioral context beyond that: pricing/offer data (Preis, Lieferzeit in Werktagen, Verzugsregel, Kündigung) is only returned 'wenn der Betreiber Festpreise veröffentlicht hat', i.e. the response is conditional. No auth or rate-limit details are given.

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?

Two sentences, front-loaded with the verb and return payload, followed by the usage condition. The field enumeration is dense but each item earns its place since there is no output schema. No filler.

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?

With no output schema and no parameters, the description carries the full burden of describing the return value, and it does so by enumerating the record fields and the conditional offer fields. An agent knows what it will get and under what condition the price block appears.

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 tool takes zero parameters and the schema is empty, so there is nothing for the description to disambiguate. Baseline 4 applies; the description correctly implies no input is required.

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 and resource ('Gibt die strukturierte Liste aller flowboxx-Leistungen zurück') and enumerates the returned fields (Bereich, Leistung, für wen, Beleg-Link, Status) plus conditional pricing data. The usage clause ('was flowboxx anbietet und was es kostet') distinguishes it from the sibling anfrage/frage/bedarf tools, which handle requests, questions and needs rather than the catalogue itself.

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?

Gives an explicit triggering condition ('Nutzen, wenn jemand wissen will, was flowboxx anbietet und was es kostet'), which tells the agent when this tool applies. It does not, however, name the sibling tools it should be preferred over or state any exclusion, so it stops short of full routing guidance.

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