get_current_price

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

No annotations are provided, so the description must fully disclose behavioral traits. It mentions the output content but does not state whether the operation is read-only, requires authentication, or has side effects. The description lacks transparency beyond the return value.

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 that front-loads the core purpose and provides specific details about the output. There is no redundant or unnecessary text.

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?

The description adequately covers the tool's primary function and output structure, especially given the existence of an output schema. However, it omits parameter guidance and usage context, making it slightly incomplete for an agent to use correctly without further information.

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 input schema has one parameter (home_id) with 0% description coverage in the schema, yet the description provides no information about its purpose, format, or default behavior. The description fails to add any meaning to the 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 it provides the current electricity price with classification (Tibber level, daily rank, percentage deviation). This specific verb (get) and resource (current price) with detailed output distinguishes it from siblings like get_price_forecast (future) and find_cheapest_hours (cheapest times).

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 implies use for current price context but does not explicitly state when to use this tool versus siblings like get_price_forecast or find_cheapest_hours. There is no guidance on prerequisites or limitations.

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