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

No annotations are provided, so the description carries the full behavioral burden. It discloses only that it fills a search field; it does not say whether the search is submitted, what happens if the city is not found, whether the site must already be open, or what state the page is left in for the next sibling call.

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 short lines with the action stated first and the parameter documented in a conventional :param block; nothing is padded. It is efficient, though the colon-prefixed param line is stylistically thin for a tool with a workflow dependency.

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?

An output schema exists, so return values need no explanation. However, for a browser-automation step in a four-tool sequence, the description omits the ordering/state assumptions an agent needs, leaving a real gap despite the adequate parameter hint.

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 description coverage is 0% for the single parameter, so the description must compensate, and it partially does by explaining that city_name is the search string and giving examples ('ירושלים', 'תל אביב'). It adds useful illustrative meaning but no format or validation constraints beyond that.

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 states a concrete verb and resource: it receives a city name and types it into the search field of the weather site. That is specific enough to distinguish a UI-entry step, though it never names or contrasts the sibling tools (select_weather_forecast_city_israel, open_weather_forecast_israel), so an agent must infer the ordering itself.

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?

There is no explicit when-to-use guidance, no prerequisites, and no mention of the sibling steps that presumably follow. The workflow role (enter search text, then select the city, then read content) is only implied by the tool names, not stated in the description.

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

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

With no annotations, the description carries the full burden. It discloses the extraction behavior and whitespace cleanup, which is useful, but omits what happens when no page is open, failure/error behavior, and any permission considerations. Adequate but incomplete for a zero-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 stating the action, with no wasted preamble. The trailing clause about returning content 'to the LLM to provide an answer' is mildly redundant but not harmful.

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?

An output schema exists, so return values need not be described, and there are no parameters to document. The main remaining gap is state-dependence (what it requires the browser to already be showing), which is only implied rather than guaranteed.

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 schema has zero parameters, so the baseline of 4 applies. Nothing about parameters needs explaining and the description does not confuse the matter.

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 specific verb and resource: it extracts the visible text from the current forecast page open in the browser and returns a cleaned version. That is clear and distinguishable from open/enter/select siblings in the pipeline, though it never explicitly names how it differs from them.

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?

Usage is implied rather than stated: it works on the page 'opened in the browser', so the agent can infer it must run after opening and selecting a city. There is no explicit statement of prerequisites, exclusions, or what to do instead if the page is not ready.

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

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.

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

No annotations are provided, so the description carries full disclosure burden. It usefully reveals that selection is deterministic ('first result'), meaning the agent cannot choose a specific city, but it omits what happens if the list is empty, whether it navigates to a new page, and any auth or error behavior.

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, tight sentence with no padding, and the key constraint ('first result') is placed prominently. Appropriate length for a zero-argument UI step.

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?

An output schema exists so return values need not be explained, and there are no parameters. What remains unstated is the workflow contract (what must precede this call, what state follows it), which matters for a sequential UI-automation tool.

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, so there is nothing for the description to disambiguate. The baseline for a parameterless tool is 4, and the description adds no misleading parameter claims.

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 names a specific verb (selects) and a specific target (the first result in the city list opened by the search), which distinguishes it from siblings like enter_weather_forecast_city_israel or open_weather_forecast_israel. It stops short of explicitly naming the alternative tools, but the action and target are clear.

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 phrase 'the city list that was opened following the search' implies this step follows a search and a list-opening step, giving sequencing context. However, it never states when to use this versus entering a city directly, nor any preconditions or failure conditions.

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