get_price_forecast

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

No annotations are provided, so the description must cover behavioral traits. It states the output includes hourly prices for today/tomorrow with statistics, implying a read-only operation. However, it does not disclose potential rate limits, authentication needs, or what happens when home_id is null.

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 sentence in German, concise and to the point. It effectively communicates the core purpose without unnecessary detail. However, it could be slightly better structured with a clearer separation of output elements.

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 the tool has one optional parameter and an output schema exists, the description explains the output well but omits parameter guidance. It is adequate for a simple tool but could be more complete by describing the parameter's role.

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 0% (no parameter descriptions in schema). The description does not explain the home_id parameter, its purpose, or how it affects the output. This leaves the agent uninformed about the single parameter.

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 provides hourly prices for today and tomorrow (if published) with min/max/average and cheapest/most expensive hour. This specific verb+resource combination distinguishes it from siblings like get_current_price and find_cheapest_hours.

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?

No guidance on when to use this tool versus alternatives like get_current_price or find_cheapest_hours. The description does not mention prerequisites or when not to use it.

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