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

With no annotations, the description carries the burden. It discloses the use of the Magnus formula and the assumption that walls are 2°C cooler than room temperature, giving insight into the calculation. It also hints at the output being an answer (yes/no) to the venting question.

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 succinct sentences (one German, one English) pack the essential purpose, method, and key assumption without waste. Every word contributes.

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?

Given no output schema and no annotations, the description covers the core functionality, input context, and calculation method. It could be slightly more explicit about the exact return format (boolean vs. numeric), but the 'Antwort' wording implies a clear answer.

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%, so the baseline is 3. The description goes beyond by explaining the relevance of the inner temperature parameter (walls counted 2°C below) and the formula used, adding meaningful context to the inputs.

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: computing the dew point of outside air and answering whether opening a window would make a basement or damp room wetter. It is specific and distinct from sibling tools which cover heating, cooling, and guide queries.

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?

It implies usage when one wants to know if venting is safe for a basement/damp room. No explicit exclusions or alternatives are mentioned, but the context is clear enough for the intended scenario.

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