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Browser Navigate Url

browser_navigate_url

Use this to navigate an identified Chromium tab to a user-requested URL via the paired computer local CDP session. Inspect or choose the target tab first; navigation may discard unsaved page state.

Input Schema

NameRequiredDescriptionDefault
urlYesDestination URL for action=url or action=new_tab.
waitNoWait for the page load event; default true.
titleNoChoose a page whose title contains this text.
deviceYesReMCP device id returned by list_devices. Required for every device operation.
endpointNoLoopback Chrome DevTools endpoint. Defaults to REMCP_CDP_URL or http://127.0.0.1:9222.
target_idNoPage target id returned by browser_tabs.
timeout_msNoTimeout in milliseconds.
url_containsNoChoose a page whose URL contains this text.

Output Schema

NameRequiredDescriptionDefault
dataNoBrowser navigate structured result for browser_navigate. Stable fields are declared explicitly; platform-specific fields may be added. Large results may return truncated/bytes/preview instead of the full payload.
textYesConcise human-readable result of the tool call.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.5/5.0
Behavior5/5

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

The description reveals a critical behavioral trait—that navigation may discard unsaved page state. This is vital context that goes beyond the simple state changes hinted at in the annotations.

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

Conciseness5/5

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

The description is highly efficient, front-loading the functional definition and immediately following it with a critical operational warning.

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

Completeness5/5

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

It provides the necessary operational context (paired computer CDP session) and warnings about state loss, making it highly complete for a complex navigational tool.

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

Parameters3/5

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

With 100% schema coverage, the schema already defines the parameters well. The description is clear but adds minimal semantic value beyond what the input structure provides.

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

Purpose5/5

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

The description clearly identifies the specific action (navigate) and the resource it acts upon (Chromium tab to a user-requested URL), distinguishing it from other sibling browser actions.

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

Usage Guidelines4/5

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

It provides strong usage guidance by specifying that a target tab must be inspected or chosen beforehand, implying this tool is not for blindly opening URLs.

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

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