Navigate

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

With no annotations, the description carries the full burden of behavioral disclosure. It clearly explains the conditional behavior: navigating the connected notebook browser window versus opening the OS default browser when no notebook is connected. It does not mention every side effect, but the core dual-mode behavior is well disclosed.

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 three sentences with no filler. It front-loads the main behavior, then adds the conditional detail, and finishes with a concrete example. Every sentence 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?

For a navigation tool with a fully documented schema, the description covers the core behavior, conditional fallback, and typical use cases well. There is no output schema, but navigation return values are not a major concern. A small gap is that it does not describe what happens after navigation completes beyond the wait_for_completion parameter, which the schema already explains.

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%, so the schema already documents all four parameters including URL format and notebook targeting. The description adds no parameter-specific meaning beyond what the schema provides, so the baseline score of 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 states a specific verb and resource: navigating a notebook to a different URL or opening it in the default browser. It clearly distinguishes the connected-notebook behavior from the no-notebook fallback behavior, 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 gives explicit use cases like switching between notebooks and opening a notebook for the first time, and it references FocusNotebook in the schema for optional targeting. However, it does not explicitly say when not to use this tool versus siblings like Refresh or BrowserEval, so it falls just short of full alternative guidance.

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