navigate_page

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

With no annotations provided, the description carries full burden but offers minimal behavioral insight. It mentions navigation actions but doesn't disclose critical behaviors: whether navigation blocks execution, what happens on timeout/failure, if it changes page context, or authentication requirements. For a navigation tool with 5 parameters and no annotation coverage, this leaves significant gaps in understanding how the tool actually behaves.

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 perfectly concise - a single sentence that captures the core functionality without any wasted words. It's front-loaded with the primary action ('Navigate to a URL') followed by secondary options. Every word earns its place in this efficient formulation.

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 navigation tool with 5 parameters, no annotations, and no output schema, the description is insufficiently complete. It doesn't explain what constitutes successful navigation, error conditions, return values, or how this integrates with the broader page management context (siblings include many page-related tools). The agent lacks critical context about this tool's behavior and outcomes.

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%, providing solid baseline documentation for all 5 parameters. The description adds marginal value by implying the 'type' parameter's purpose (navigation actions) but doesn't clarify parameter interactions (e.g., that 'url' is only needed for type='url') or provide usage examples. The schema already documents each parameter well, so baseline 3 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 clearly states the tool's purpose with specific verbs (navigate, go back/forward/reload) and the resource (URL/page). It distinguishes itself from siblings like 'new_page' or 'select_page' by focusing on navigation actions rather than page creation or selection. However, it doesn't explicitly mention browser/page context which would make it fully distinct.

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 provides no guidance on when to use this tool versus alternatives. There's no mention of prerequisites (like needing an active page), when to choose 'reload' versus 'navigate to same URL', or how this differs from sibling tools like 'wait_for_navigation' or 'reload_settings'. The agent must infer usage from parameter names alone.

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