browser_open_ai

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It indicates navigation (a state-changing action) but does not mention whether it opens a new tab, overwrites the current page, waits for page load, or what side effects occur. For a tool that modifies browser state, this minimal disclosure is a significant gap.

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, front-loaded sentence starting with the verb 'Navigate'. It lists all relevant destinations without any filler or redundant information, and every word earns its place.

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?

This is a simple tool with two optional parameters and no output schema. The description gives the essential action and destinations, but it lacks clarity on parameter constraints and behavioral outcomes (e.g., what the tool returns, error conditions). Given the tool's simplicity, the description is moderately complete but not fully.

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%, so the description must compensate. It maps 'site' to the enum values and 'url' to a custom URL, adding meaning to both parameters. However, it does not clarify whether one parameter is required, whether they are mutually exclusive, or what happens if both are provided, leaving ambiguity in parameter usage.

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' and clearly names the resource (connected browser) and the destinations (ChatGPT, DeepSeek, Claude, Gemini, Copilot, or a custom URL). This distinguishes it from sibling tools like browser_connect (which manages the connection) and browser_send_message (which sends messages), making the tool's purpose 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 when to use this tool (whenever you need to direct the browser to one of these AI sites or a URL), but it does not explicitly state when to use it over alternatives or provide exclusions. There is no mention of prerequisites such as requiring an active browser connection, though the phrase 'connected browser' indirectly suggests it.

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