open_weather_forecast_israel

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

With no annotations, the description carries the burden. It openly discloses a stateful side effect (leaves browser sitting on forecast page) and return values (page title and URL). However, it does not clarify browser lifecycle details (e.g., whether multiple calls open new tabs or how the browser is reused), which could be inferred from siblings but are not explicit.

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 compact sentences: first states the primary action, second adds usage guidance and return info. Every sentence earns its place with no redundant content.

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 tool is a simple first step in a larger workflow. The description covers action, resulting state, and return values, and the output schema (mentioned in signals) exists. Given sibling tools handle later steps, the context is complete.

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?

Tool has zero parameters, so the empty schema is self-explanatory. Baseline of 4 applies, and the description need not add parameter semantics since there are none.

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 action (open a browser and navigate) with a specific resource (Israeli weather forecast site). It distinguishes itself from sibling tools by describing the initial navigation step and leaving the search box ready, which is unique among the siblings.

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 instructs 'Call this first,' providing clear timing relative to alternatives. Also describes the resulting state (city search box ready), which implies subsequent tools like enter_weather_forecast_city_israel should follow, giving effective when-to-use guidance.

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