browser_navigate

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

Annotations already set `destructiveHint: true`, indicating state change. The description adds no behavioral details beyond what annotations provide, such as whether navigation waits for page load or handles errors. No contradiction with annotations.

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 extremely concise at 4 words. While efficient, it could benefit from slightly more detail without becoming verbose. Front-loading is good, but it borders on being too brief.

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 low complexity, the description lacks important context such as whether navigation occurs in the same tab, any prerequisites (e.g., page loaded), or error handling. It is insufficient for a tool with multiple sibling tools.

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 a description for the single `url` parameter. The tool description does not add additional meaning beyond the schema, so the baseline score of 3 is appropriate.

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' clearly conveys a specific verb and resource. While it is concise, it effectively distinguishes from sibling tools like `browser_navigate_back` through the absence of 'Back'. However, it could be more explicit about opening or replacing the current page.

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?

No usage guidelines are provided. The description does not indicate when to use this tool over alternatives like clicking a link or using `browser_navigate_back`. It lacks context for decision-making.

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