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

Annotations already cover the safety profile (readOnly, openWorld, non-destructive), and the description adds genuinely new context: answers come back in German, the call takes up to 60 seconds, and the check is free. It does not mention failure modes (unreachable site, invalid URL) which would complete the picture for a 60-second network operation.

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?

Front-loaded with the core promise and packed with useful detail in a compact space. It reads as one long run-on sentence with a heavy parenthetical checklist, which slightly hurts scanability, and 'Free instant' plus 'Takes up to 60 seconds' sits in mild tension, but nothing is truly wasted.

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, the description carries the return-value burden well: it names both scores, their ranges, the level scale, and the accompanying gaps, tips and result link. Combined with the disclosed latency and response language, an agent has everything needed to call it and interpret the result.

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 coverage is 100% with a single required 'url' field, so the baseline is 3; the description only restates 'Required: url'. The one addition is the constraint 'any public website', which hints at accessibility requirements the schema does not express.

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 ('Agent-Ready check of any public website') and enumerates the two concrete outputs (Grundlagen 0-100, Zukunft 0-100 plus level 0-5). The scope ('quick check', agent-readiness focus) clearly separates it from the sibling tools (kontakt, leistungen_und_preise, fiperly_info, analysen).

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?

Implies usage via 'free', 'instant' and 'any public website', and the runtime note helps an agent decide if it fits. However, it never states when to prefer this over the sibling 'analysen' tool or any when-not conditions (e.g. non-public or JS-heavy sites), leaving the choice to inference.

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