nex_browser_navigate

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

With no annotations provided, the description carries the full burden. It discloses that the tool returns a refreshed accessibility snapshot after navigating, which is useful. However, it does not clarify whether it waits for full page load, how it handles invalid URLs, or whether the current page context is preserved. The lack of such behavioral details prevents a higher score, but the description is not misleading.

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 with no filler words: 'Navigate the selected page and return its refreshed accessibility snapshot.' It front-loads the action and outcome, and every phrase earns its place. Excellent conciseness.

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 has no output schema, so the sole mention of 'accessibility snapshot' is the only return-value information. It does not describe the snapshot structure or mention loading behavior, but given the simplicity of the navigate action and the sibling tools context, it is minimally complete. More detail on return format or side effects would make it stronger.

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 67%, with pageId and sessionId described in the schema. The description does not add meaning to the url parameter beyond implying it is the destination URL. It does not explain URL format requirements or defaults, but the parameter names are self-explanatory. The description adds minimal value over the schema, so a mid-range score 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 uses the specific verb 'Navigate' with the resource 'selected page' and states the outcome 'return its refreshed accessibility snapshot.' This clearly distinguishes it from sibling tools like nex_browser_reload or nex_browser_go_back, which serve different navigation actions. The purpose is unambiguous.

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 implies the tool is used when you need to point the current selected page at a new URL and get the updated snapshot, but it does not explicitly state when to use it versus alternatives such as nex_browser_open or nex_browser_tab_new. There are no exclusions or alternative suggestions, leaving the agent to infer usage from the tool name and position among siblings.

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