get_navigation_history

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 only states the action and reveals no details about what the history contains (URLs, timestamps, session vs. persistent), whether a browser session must be active, or how results are structured. The lack of additional behavioral context is a notable 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 one short, front-loaded sentence with no filler. Every word contributes to the core purpose, and for a parameterless tool this is an appropriately sized definition.

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?

Despite the simple interface (no params), the description leaves out important context such as the return format, whether the history is limited to the current session, and whether a browser instance must already be running. With no output schema to clarify results, the description is incomplete for an agent to fully understand the tool's behavior.

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 tool has zero parameters, so the input schema is complete by default. With no params to describe, the description does not need to compensate for schema gaps, and the baseline of 4 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 clear verb ('Get') and resource ('the browser's navigation history'), identifying a specific function. It does not explicitly differentiate itself from siblings like get_all_urls or get_current_url, but the resource name is distinctive enough to convey the basic purpose.

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?

No guidance is provided about when to use this tool versus alternatives such as get_all_urls, go_back, or go_forward. There are no conditions, prerequisites, or exclusions mentioned, leaving the agent without direction for choosing this tool over related navigation queries.

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