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navigate

Open a URL in an existing Chrome/Chromium tab and wait for load, DOM content, or network idle before continuing browser automation.

Instructions

Navigate to URL

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYes
timeoutNo
wait_untilNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv4.3.0

TDQS

D1.6/5.0
Behavior1/5

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses nothing: no statement about whether it waits for load, how timeout is applied, or what state the page is left in. For a core navigation tool this is a severe gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

It is short and front-loaded, but this is under-specification rather than conciseness — three words for a tool with three parameters and no annotations. Brevity here costs the agent needed context.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no annotations, no output schema, no parameter docs, and a complex browser-automation surface, the description is far too thin. An agent cannot know how blocking works, what timeout defaults are, or what wait_until controls.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% across three parameters. The description adds no meaning for 'url', 'timeout', or the 'wait_until' enum values (load/domcontentloaded/networkidle), leaving the agent to guess semantics from parameter names alone.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a recognizable verb ('Navigate') and resource ('URL'), so an agent can infer this drives the browser to a given address. However, it gives no scope or differentiation from siblings like reload, go_back, go_forward, or new_tab, which all also move the browser.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this versus go_back, go_forward, reload, or new_tab. No prerequisites, no mention of whether navigation is blocking or how it interacts with wait/wait_for.

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