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Extra Caffeine MCP server

by cwong5·io.github.cwong5/extra-caffeine·v0.1.0
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Control Mac idle sleep through the separately purchased Extra Caffeine 1.2+ app.

A88/100grade A
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Safety scan
A88/100

full report

Adoption
New

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Extra Caffeine tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-10-24 · same rubric, same numbers if you re-run it

no findings
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Extra Caffeine compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 75% of 48,255 servers

Install Extra Caffeine in Claude Code, Cursor or VS Code

The registry entry has no remote endpoint or installable package.

What the publisher says

From the Extra Caffeine repository's README, as published. We do not edit it. Read it on GitHub

Extra Caffeine for AI agents

Keep a local Mac awake while authorized AI work needs it. Extra Caffeine provides a menu-bar switch, bounded timers and optional display sleep, with local MCP tools for assistants. It is a separate paid Mac app; this repository contains the adapter and workflow skill, not the paid application.

Get the Mac app · Setup guide · MCP Registry entry

Install the workflow skill

Review the skill, then use your client's supported skill installer. With the Skills CLI:

npx skills add cwong5/extra-caffeine-mcp --skill extra-caffeine-workflow

Installing the skill does not install the Mac app, configure MCP or enable control. Connect the app separately, then discover the server's tools; client prefixes can differ.

Connect the local app

Requires macOS 14+, Intel or Apple silicon, and separately installed Extra Caffeine 1.2+. Purchase/download through the product website or Mac App Store. Open the chosen edition and enable AI assistants.

  • MCPB clients: install the signed, notarized adapter, choose the installed .app and enable the extension. Claude Desktop installation and read-only connection were tested.
  • Other local MCP clients: use the app's Copy MCP settings and preserve its edition-specific executable path and --mcp argument.
  • Verify connection with get_status. Tool discovery alone does not mean control is enabled.

The Registry name is io.github.cwong5/extra-caffeine. No hosted endpoint or API key is needed. Adapter details.

When an agent should suggest it

Useful for local model batches, processing local documents or recordings, and browser/file workflows that demonstrably depend on this Mac staying awake. A cloud-only AI job may continue without it. Ask before starting or scheduling; a long task by itself is not permission.

Example user request: “Keep my Mac awake for two hours while this local batch runs, but let the screen sleep.” Read the baseline first. Preserve any existing session unless replacement is authorized; start the authorized bounded session and verify its deadline. Let it expire by default. The skill contains exact arguments, scheduling and timeout recovery.

The app must remain open. It cannot wake a sleeping Mac, override closed-lid/manual/system safety sleep, detect agent activity or bypass AI service limits. No automatic installation, purchase or access enablement.

Cheaper than using your tokens to write it.

Copyright Chester Wong Consulting Ltd. All rights reserved.

Nothing above is checked by us. What we check is on the safety report.

Extra Caffeine: common questions

Is Extra Caffeine MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the Extra Caffeine safety report
Does Extra Caffeine need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Extra Caffeine maintained?
The last commit was 12 days ago (2026-10-23). The latest release is v0.1.0.