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    Mac Display Optimizer

    2

    Optimize external monitor text clarity, refresh rates, and DDC brightness control on Apple Silicon.

    $5

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    See it in action

    You say

    My external monitor text looks blurry and the brightness buttons on my keyboard don't work for it. Can you fix the scaling and enable brightness control?

    Your agent does

    I will install Mac Display Optimizer (MDO). It locks your monitor at native 1:1 resolution at the highest available refresh rate, tunes font rendering for sharp text, and enables brightness/color control.

    Status: Checking for Homebrew... Found. Action: Running install.command...

    • Installed displayplacer + m1ddc (Homebrew) and pyobjc/rumps (pip)
    • Saved "before MDO" baseline: 3440x1440 @ 60 Hz, fonts=default
    • Locked 3440x1440 @ 100 Hz (HDMI; will auto-select 165 Hz on DisplayPort)
    • Font mode: Sharpest. Pixel format: RGB (no TV mode detected)
    • Loaded daemon + menu bar app (the ◐ icon) — both start at login

    Done. Use the ◐ menu for presets (Day/Evening/Movie/Game), sliders and font modes. "Before MDO" restores everything; "Uninstall" removes all files.

    What you get

    Control external monitor brightness and contrast via hardware DDC.Lock displays to maximum refresh rates like 144Hz or 165Hz.Automate display presets for day and night viewing schedules.Fix blurry text on a non-Retina ultrawide (e.g. 3440x1440) with native 1:1 rendering and tuned font smoothing.

    About this skill

    The problem

    External monitors on Apple Silicon often suffer from blurry text, awkward scaling, or limited refresh rates. Native macOS settings frequently lack hardware brightness and contrast control for non-Apple displays.

    What it does

    • Locks your display at native 1:1 resolution and the highest available refresh rate (up to 165 Hz) — deliberately avoiding blurry virtual-HiDPI downscaling.
    • Four font-rendering modes that fix blurry text on non-Retina and ultrawide panels, including a Reading mode tuned for long texts.
    • Hardware DDC/CI brightness, contrast and RGB color control directly from the Mac, with automatic software-gamma fallback over HDMI on M1/base-M2.
    • Display presets for Day, Evening, Movie (film-tuned for VA ultrawides) and Game, plus an automatic Day/Evening scheduler.
    • Detects and warns about signal issues like YCbCr color encoding (blurry, color-fringed text) and Night Shift conflicts.
    • Menu bar app with live sliders + background daemon. "Before MDO" restores your screen exactly as it was before installation, and a one-click uninstaller removes every file.

    Frameworks & tools

    macOS 13+, Apple Silicon, Homebrew, Python, displayplacer, m1ddc.

    Why this beats prompting it yourself

    Manually configuring font smoothing, DDC tools and resolution wrappers means juggling multiple CLI utilities and LaunchAgents. MDO handles installation, login persistence and control in one audited package — with a full security disclosure (references/output-contract.md) documenting every file it creates, modifies and removes. No network access at runtime, no telemetry, never executes remote scripts.

    How to install

    Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.

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    Recently published to Agensi

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