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Features

Describe the Screen

Press NVDA+Alt+D and LIMA AI tells you what is on your screen — on demand, whenever you need it.

  • What you hear — a brief, factual summary of the active monitor: the main elements and any important visible text, in short spoken sentences. No storytelling, no interpretation — just what is there.
  • Braille too — the description is also shown on your braille display.
  • One description at a time — if you press the shortcut while an earlier description is still in progress, NVDA tells you and keeps going.
  • Requires sign-in — the feature works only while you are signed in with your Google account.

Describe the Focused Element

Press NVDA+Alt+E and LIMA AI describes the control you are on: how it looks and what it does.

  • What it looks at: a picture of the element together with its accessibility information, such as its name and role. This helps most with buttons and icons that have no label, or only a vague one.
  • Braille too: the description is also shown on your braille display.
  • Works in browse mode: on a web page, it describes the element at your browse mode cursor, not the whole page.
  • When there is nothing to capture: if the focused element has no visible location on the screen, NVDA says so. Move to a control and try again.

Click by Description

Some controls are easiest to reach with a mouse. Press NVDA+Alt+C, type what you want to do in plain words, and press Enter. For example: "click the Send button", "open the Downloads folder", or "right-click the file".

  • Finds the real control: LIMA AI lists the controls on the screen from the accessibility tree, and the AI picks the one you mean. The click lands on that control, never on a guessed position.
  • Single, double, or right click: chosen from your wording.
  • Works on: buttons, links, menu items, list items, and text fields such as search and address bars.
  • While it searches: you hear a short tone and "Finding ..." with your own words, then a soft tick until it is done. NVDA then says what it clicked, for example "Clicked Send."
  • Cancel at any time: press Escape in the prompt, or press NVDA+Alt+C again while it is searching.
  • Nothing found, nothing clicked: if no control matches, NVDA says "I could not find ..." and nothing is clicked.

Dynamic Web Narration

Press NVDA+Alt+W and LIMA AI watches the browser page you are on, briefly announcing when it changes.

  • "Web page update: ..." — the add-on describes what changed on the page.
  • Non-interrupting — announcements are spoken between what NVDA is reading, so your reading is never cut off.
  • No repeats — the same update is never spoken twice.
  • Ignores your own actions — typing, scrolling, and mouse movement are not narrated.
  • Stays in the browser — narration runs only while a browser window is focused, and stops by itself when you leave the browser or press NVDA+Alt+W again.
  • Before each update — choose between hearing "Web page update:" spoken, a short beep, or nothing before the description. See Settings, then Web Narration.

Sign In with Google

Sign in once and the add-on recognises you.

  • One-time sign-in from NVDA's settings panel — no separate password to create or remember.
  • The session is remembered and refreshed automatically, so there's no sign-in at every launch.
  • Use the same Google account you use with other Roscommon Systems products.

Check Your Credit Usage

Each plan includes a monthly amount of AI credit. Press NVDA+Alt+U to hear how much of it you have used, for example "Credits used this month: 34.25%", followed by when it resets, such as "resets in 4 days".

  • Also in the settings panel: the same line is shown under Credit usage in the LIMA AI settings.
  • When it is all used: instead of a general error, NVDA says "You've used all your LIMA credit for this month." followed by the date it comes back.
  • Other answers: if your credit is a one-time amount rather than monthly, NVDA says it does not reset. If the usage can't be checked, for example without an internet connection, NVDA says "Credits used: Not available" rather than guessing.
  • Nothing sensitive on your computer: the LIMA backend works out the percentage from your account, so no API key or dollar amount reaches your computer.

Speak in Your Language

Descriptions are spoken in the reply language you choose: English (default), Tagalog, or Vietnamese. NVDA uses a matching voice where one is available. With Vietnamese, the add-on's own messages, such as "Describing screen", are in Vietnamese too. See Settings, then Language.

Privacy by Design

  • Screenshots leave your device only when you use a feature. A shortcut sends one when you press it. While web narration is on and a browser is in focus, the add-on compares the screen on your computer every few seconds and sends screenshots only when the page has changed.
  • Describing the focused element also sends its accessibility information, such as its name, role, and value. In a text field, the value is the text in it.
  • Clicking by description also sends the words you type and the names of the controls on the screen.
  • Everything is sent under a Zero Data Retention policy: the AI providers may not store or train on it.
  • No API key or provider secret lives in the add-on — the LIMA backend attaches keys server-side.
  • Nothing else you type, nothing on your clipboard, and no audio is ever collected.

What the add-on deliberately doesn't do

LIMA AI is the on-demand companion to LIMA Desktop. It does not read documents continuously, take voice commands, or carry out multi-step tasks for you. Those capabilities stay exclusive to the desktop app. For quick AI answers and single clicks inside NVDA, the add-on is all you need.

Next steps