open_weather_forecast_israel

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

Describes opening Chromium and navigating to a site, but lacks details on side effects (e.g., waiting for page load, session management) given no annotations are provided.

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 with no waste: first states purpose, second gives usage order. Highly efficient and front-loaded.

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?

For a no-parameter initialization tool with an output schema and sibling tools covering subsequent steps, this description fully informs the agent of its role and prerequisites.

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?

No parameters exist; baseline is 4. Description adds no parameter info, which is appropriate since none are needed.

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 uses a specific verb ('opens and navigates') and resource ('Chromium browser to Israeli weather website'), clearly distinguishing from sibling tools that handle city entry, content retrieval, and selection.

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?

Explicitly states 'must call this function first before any other action', providing clear sequential guidance. Does not mention when not to use or alternatives, but the context with siblings implies this is a prerequisite.

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