open_weather_forecast_israel

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

With no annotations, the description carries the full burden. It usefully discloses the side effect that a browser window is opened, which is meaningful for an agent. It does not mention state (new tab vs. existing), auth, or what the user sees next, leaving gaps for a no-annotation tool.

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?

A single front-loaded sentence with no filler; the action and destination are stated immediately. Nothing needs trimming.

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 simple (0 params, output schema present so return values need no explanation) and the description adequately covers the action. The remaining gap is routing context against the sibling tools, which is a moderate omission rather than a fatal one.

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 tool takes zero parameters, and the schema coverage is 100%, so there is nothing for the description to disambiguate. Baseline 4 applies since no parameter semantics 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 gives a concrete verb+resource in Hebrew: it opens the browser and navigates to the Israeli weather site's homepage. An agent can tell what the tool does. However, it never distinguishes itself from the three sibling tools (enter/select/get_weather_forecast_*), so it stops at 4.

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 mention of navigating to the 'homepage' implies this is the entry/starting step before the city-selection and content siblings, but there is no explicit statement of when to use it versus enter_weather_forecast_city_israel or get_weather_forecast_content_israel. Usage is only inferred.

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