navigate

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It explicitly documents protocol normalization (automatic https:// prefix), the wait condition (initial HTML parsed and loaded), side effects on navigation history, and error behavior for invalid URLs or load failures. This is substantial and directly useful.

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 compact and well-structured. The first sentence delivers the core action, and each subsequent sentence adds a distinct behavioral fact—protocol handling, waiting, history, errors—without redundancy or fluff.

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 one-parameter navigation tool with an output schema and no annotations, the description is complete. It covers how the input is normalized, what the tool waits for, side effects on history, and failure behavior. An agent has enough information to invoke it correctly and predict results.

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 only defines 'url' as a required string with no per-parameter description (0% coverage). The description compensates by explaining how the URL is interpreted: missing protocols are automatically prefixed with https://, and invalid URLs raise errors. This adds meaningful semantics beyond the raw 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?

The description starts with a specific verb and resource: 'Navigate to the given URL in the web browser.' It clearly distinguishes itself from navigation-sibling tools like reload_page, go_back, or open_new_tab because the core action is loading a provided URL, though it doesn't explicitly name those alternatives.

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 the main use case—loading a specific URL into the browser—but provides no explicit when-to-use or when-not-to-use guidance relative to sibling navigation commands. An agent can infer intent from the name and first sentence, but there are no exclusions or comparison to alternatives.

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