browser_navigate

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

With no annotations, the description bears the transparency burden. It discloses return values (title, URL, readyState, page structure) and mentions multi-task isolation, providing useful behavioral context beyond a simple 'navigate' statement. However, it doesn't explain side effects like wait behavior or potential errors, preventing a higher score.

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?

Two concise sentences, front-loaded with the core action and followed by return value and feature note. Every sentence earns its place with no redundancy, making it highly efficient and well-structured.

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 three parameters with no schema descriptions, no annotations, and no output schema, the description is insufficiently complete. It provides return values but misses parameter semantics, usage conditions, and behavioral side effects, making it hard for an agent to invoke correctly in nuanced contexts.

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 schema has zero descriptions for url, task_id, and wait_until, and the description adds no parameter-level detail. It only implies the URL target but offers no explanation of task_id or wait_until, leaving the agent without essential parameter semantics.

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 tool navigates the browser to a specified URL and returns title, URL, readyState, and page structure, making its primary function unambiguous. It doesn't explicitly differentiate from sibling navigation-related tools like browser_wait_navigation, but the verb+resource+output structure is specific enough.

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 guidance is provided on when to use this tool versus alternatives. It doesn't mention prerequisites, exclusions, or when to prefer browser_snapshot or browser_wait_navigation. The only additional note about multi-task isolation is a feature description, not usage direction.

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