MCPVault

evaluate_main

MCP tool from Electron MCP Server by amafjarkasi

Evaluate in the Electron main/node CDP target.

How to use it

evaluate_main is exposed by the Electron MCP Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the evaluate_main tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

FULL ELECTRON MCP SERVER LISTING

Other tools in Electron MCP Server (39)

appPath

string

attach
attach_by_pid

Attach by OS process id. Resolves --remote-debugging-port from the process command line (Linux/macOS/ps, Windows PowerShell). Falls back to listening sockets owned by the PID on Linux when needed.

clear

bool (set)

consoleIncludes

Buffered console text includes

debugPort

int 1024–65535

discover_apps
enabled

Element exists and is not disabled

endPort

int

entries

Record<string,string> ✅ (set)

evaluate
expires

number

expression

string ✅

extraArgs

string[]

find_apps

List running Electron-like processes.

format

png \

get_cookies
hidden

Element absent or not visible

inspectMain

bool

kind

localStorage \

name

string

path

string ✅ (savescreenshot)

pid

int

processId

string ✅

quality

int 0–100

returnByValue

bool

role

page \

sameSite

Strict \

screenshotOnTimeout

Save a PNG under the OS temp dir on failure

selector

string

set_cookie
start_app

Launch Electron with remote debugging.

startPort

int

targetId

string

text

document.body.innerText includes

timeoutMs

Default 10000 (max 120000)

urlIncludes

location.href includes

urls

string[]

wait_for

Provide at least one condition: