Navigate the page

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

'Wait for the page to load' is valuable beyond the annotations: it tells the agent the call blocks until load completes. However, the annotations mark this destructive (destructiveHint=true) yet the description never warns that the current page state, unsaved forms, or scroll position will be discarded, nor does it mention timeouts or behavior on load failure.

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?

A single front-loaded sentence with zero filler; the action and the blocking behavior come first.

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?

For a two-parameter navigation tool with no output schema, the essentials are covered, but the destructive nature (current page loss) and failure/timeout behavior are undisclosed. An agent has enough to call it, not enough to call it safely.

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 100%, with both url ('Absolute URL') and context ('Tab context id') documented, so the baseline of 3 applies. The description's 'active tab' hints at the context default but adds no format or constraint detail beyond the schema.

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?

Specific verb (navigate) plus resource (active tab) and the URL destination. The phrase 'active tab' implicitly separates it from browser_new_tab, but no sibling is named explicitly, so differentiation is left to inference.

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?

Usage is only implied: the agent must infer that this should be used to load a URL in an existing tab rather than opening a new one. There is no explicit 'use X instead when...' routing to browser_new_tab, browser_activate_tab, or browser_list_tabs.

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