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Google Flow Browser MCP

Google Flow Browser MCP

by DarthAdry
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Local

flow_connect

Launches Chrome using your Google profile, connects via CDP, and navigates to Google Flow to verify account for browser automation.

Instructions

Launch Chrome with the configured Google profile, connect CDP, navigate to Google Flow, and verify account.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "flow_connect"
  }
}

Input Schema

NameRequiredDescriptionDefault
headlessNoLaunch in headless mode (not recommended, Google Flow needs visible browser).
open_flowNoAuto-navigate to Google Flow after connection.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.1

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations, the description carries the burden. It discloses the main side effect (launching Chrome) and the steps performed, but lacks detail on whether the connection is persistent, what happens on verification failure, or whether the browser closes after the operation. This is moderate transparency but not complete.

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 a single sentence that packs four specific actions without fluff. It is front-loaded with the primary action ('Launch Chrome') and efficiently communicates the full flow.

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

Completeness3/5

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

The description does not mention return values (no output schema exists) or the fact that this tool likely establishes a required connection for other flow_* tools. Without annotations, it could benefit from noting that it is a prerequisite and what 'verify account' entails. This is adequate but not fully complete.

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?

Schema description coverage is 100%: both 'headless' and 'open_flow' have clear descriptions in the schema, including a warning about headless mode. The tool description does not add additional parameter semantics, but since the schema already covers them, a baseline score of 3 is appropriate.

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 states the tool's specific actions: launching Chrome, connecting CDP, navigating to Google Flow, and verifying the account. It distinguishes itself from sibling tools like flow_disconnect or flow_status by focusing on the connection setup.

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

Usage Guidelines2/5

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

The description does not provide explicit guidance on when to use this tool relative to alternatives. It implies it is a connection step but does not mention prerequisites, exclusions, or alternative tools. For example, it does not clarify whether this should be run before flow_status or flow_discover_ui.

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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