navigate

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

No annotations and minimal description. Does not disclose whether the navigation waits for page load, replaces current history, or any side effects. Essential behaviors for a navigation tool are omitted.

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?

Extremely concise (one sentence), but lacks structure. It could include more detail without being verbose. The brevity sacrifices informativeness.

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 tool's complexity (navigation) and absence of annotations or output schema, the description is severely incomplete. It does not cover return values, page load behavior, or error conditions.

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 0% and the description adds no meaning to the 'url' parameter beyond its type. The tool description does not compensate for the lack of parameter documentation.

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 the browser to a URL' clearly states the action and target, but does not distinguish from sibling navigation tools like go_back, go_forward, or open_new_tab. It lacks differentiation.

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 on when to use this tool versus alternatives such as go_back or open_new_tab. The description provides no context for usage, leaving the agent to infer.

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