browser_navigate

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

Annotations include destructiveHint: true, warning that navigation could change page state (e.g., unload current page, lose form data). The description does not elaborate on this—no mention of page load wait, cancelation, or side effects. Without annotations, this would be very opaque; with them, the description adds no value beyond the hint.

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, front-loaded sentence with zero wasted words. It efficiently communicates the essential purpose.

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 simplicity (1 param, no output schema) and sibling variety, the description is minimally complete for navigation but lacks context about page-load behavior, timeout, or error handling. For a destructive operation, more guidance (e.g., 'Waits for page to load') would improve completeness without overloading the 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?

Schema coverage is 100% with one parameter (url). The description doesn't add meaning beyond the schema's 'The URL to navigate to'. Since the schema is complete and simple, a baseline of 3 is appropriate; no extra semantic richness is 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 'Navigate to a URL' uses a clear verb ('Navigate') and resource ('URL'). It distinguishes this tool from siblings like browser_navigate_back and browser_tabs by implying forward navigation. However, it lacks specificity about URL types (e.g., http, file) or behavior (e.g., same tab vs new tab), keeping it from a 5.

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 description provides no guidance on when to use this tool versus alternatives like browser_navigate_back or browser_click. It does not mention when not to use it, prerequisites (e.g., browser must be open), or order of operations. The agent receives no help in making this decision.

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