navigate_browser

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

With no annotations, the description carries the full burden. It merely restates the tool name in sentence form and does not disclose whether navigation waits for page load, whether it runs in the same tab or a new one, or any side effects. It adds little beyond the name itself.

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, short sentence with no wasted words. It is front-loaded and easy to parse. However, it could have included a brief usage hint to add value without becoming verbose.

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?

Given the simple one-parameter tool, the description is minimally adequate: it states the core action and the schema covers the parameter. However, it misses guidance on when to use it compared to siblings and lacks behavioral expectations such as page load behavior, making it a bare minimum for completeness.

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 100% for the 'url' parameter, which already says 'URL to navigate to'. The description adds the word 'specific' but no additional meaning. Baseline 3 is appropriate because the schema does the heavy lifting.

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 'Navigate browser to a specific URL' clearly states the action (navigate) and resource (browser) with a clear object (URL). It distinguishes from sibling tools like scroll_page or click_element_by_xpath, which have different purposes. The verb is specific and the scope is well-defined.

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 guidance on when to use this tool versus alternatives. It does not mention that this is for changing the current page, how it relates to start_browser for initializing a session, or any exclusions. The description only states what it does, not when to prefer it.

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