Navigate to URL

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

Annotations already indicate that the tool is destructive (destructiveHint=true). The description adds no additional behavioral context such as waiting for page load, handling of invalid URLs, or that navigating away may lose data. It does not contradict annotations but also does not enhance transparency.

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 sentence, which is concise. However, it is overly brief and could include more details without significant length. It is not verbose, but the brevity leads to missing important information.

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 complexity of navigating a web page, the description is incomplete. It does not mention expected behavior such as waiting for the page to load, error handling, or the return value. Although there is an output schema (not shown), the description should provide context on what happens after navigation.

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 input schema has 100% description coverage for all three parameters. The tool description does not add any additional meaning beyond what the schema provides. Baseline score of 3 is appropriate as the schema already documents the parameters adequately.

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 clearly states the action (navigate) and the resource (URL). It is a specific verb-resource pair. However, it does not differentiate from sibling tools like clicking a link that also causes navigation, but given the variety of siblings, this is acceptable.

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 such as clicking an element that leads to a URL. There are no exclusionary statements or mention of prerequisites like requiring a valid HTTP URL.

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