- name
- open-utter
- description
- Headless Google Meet bot that joins meetings and captures live captions as transcripts.
- homepage
- https://github.com/sumansid/openutter
- metadata
- { "openclaw": { "emoji": "🦦", "requires": { "bins": ["node"] } } }
OpenUtter
STOP — Ask the user before doing anything
When the user asks to join a meeting, you MUST do these steps IN ORDER. Do NOT skip ahead.
Step A: Read the file ~/.openutter/auth-meta.json (it may not exist — that's fine).
Step B: Ask the user how they want to join. Do NOT launch the bot yet.
If auth-meta.json exists and has an email field, ask:
"How would you like to join the meeting? 1. Join as user@gmail.com (authenticated — no host approval needed) 2. Join as OpenUtter Bot (guest — host must admit) 3. Join with a custom name (guest)"
If auth-meta.json does NOT exist, ask:
"What name should the bot use to join the meeting?"
Default to "OpenUtter Bot" if the user doesn't have a preference.
Step C: WAIT for the user to answer. Only then launch the bot with the right flags.
- User chose authenticated → use
--auth - User chose guest → use
--anon --bot-name "Their Name"(always ask for a name)
The bot will refuse to start without --auth or --anon. When using --anon, --bot-name is also required.
A meeting bot that joins Google Meet meetings via Playwright browser automation and captures live captions as a real-time transcript.
Prerequisites
playwright-core(ships with openclaw)- Chromium browser:
npx playwright-core install chromium
Join a Meeting
IMPORTANT: Always run these commands with background:true — the bot is a long-running process that stays in the meeting. Do not wait for it to complete; background it immediately and poll for status updates.
Launch command
exec background:true command:"npx tsx skills/openutter/scripts/utter-join.ts https://meet.google.com/abc-defg-hij --auth|--anon --channel <current-channel> --target <current-chat-id>"IMPORTANT: Always pass --channel and --target from the current conversation context. The bot uses these to send screenshots and status images directly to the user's chat.
Options (required — bot will error without one):
--auth— join using saved Google account (~/.openutter/auth.json)--anon --bot-name "Name"— join as a guest with this display name (both required together)
Other options:
--headed— show the browser window (for debugging)--camera— join with camera on (default: off)--mic— join with microphone on (default: off)--duration 60m— auto-leave after duration (supports ms/s/m/h)
Live Caption Transcript
Captions are automatically captured whenever the bot is in a meeting. After joining, the bot enables Google Meet's built-in live captions and captures the text via a MutationObserver. Captions are deduplicated (Meet updates word-by-word) and flushed to a transcript file every 5 seconds.
Transcript location: ~/.openclaw/workspace/openutter/transcripts/<meeting-id>-<YYYY-MM-DD>.txt
Format:
[14:30:05] Alice: Hey everyone, let's get started
[14:30:12] Bob: Sounds good, I have the updates ready
[14:30:25] Alice: Great, go aheadWhen the meeting ends, the bot prints [OPENUTTER_TRANSCRIPT] <path> with the transcript file path.
Get Transcript (what are they saying?)
When the user asks "what are they saying?", "what's happening?", "summarize the meeting", or anything about meeting content — run this script. Do NOT use utter-screenshot.ts for this.
exec command:"npx tsx skills/openutter/scripts/utter-transcript.ts"Use --last 20 to get only the last 20 lines (for long meetings).
Read the output and summarize it for the user in natural language.
Take a Screenshot (visual context only)
If the user asks to see the meeting (e.g. "send me a screenshot", "what does it look like"):
exec command:"npx tsx skills/openutter/scripts/utter-screenshot.ts"Send the screenshot image to the user via message. Do NOT read the screenshot yourself.
How It Works
- Join: Launches headless Chromium, navigates to the Meet URL, enters the bot name, clicks "Ask to join", and waits for the host to admit it.
- Caption capture: After joining, the bot clicks the CC button to enable Google Meet's live captions, then injects a MutationObserver to capture caption text from the DOM. Captions are deduplicated (partial word-by-word updates are ignored) and flushed to a transcript file every 5 seconds.
Authentication (Optional)
By default the bot joins as a guest and needs host admission. To join as an authenticated Google user (no admission needed), run the auth script once:
npx tsx skills/openutter/scripts/utter-auth.tsThis opens a headed browser — sign into Google, then press Enter. The session is saved to ~/.openutter/auth.json and automatically loaded on future joins. Re-run if the session expires.
Files
~/.openutter/auth.json— saved Google session (cookies + localStorage, from utter-auth.ts)~/.openutter/chrome-profile/— persistent Chromium profile (used when no auth.json)~/.openutter/config.json— bot configuration (optional)~/.openclaw/workspace/openutter/transcripts/— live caption transcripts~/.openclaw/workspace/openutter/on-demand-screenshot.png— on-demand screenshot from a running meeting~/.openclaw/workspace/openutter/debug-join-failed.png— screenshot on join failure~/.openclaw/workspace/openutter/debug-admit-failed.png— screenshot on admission failure~/.openclaw/workspace/openutter/joined-meeting.png— confirmation screenshot after joining
Headless VM Tips
- Chrome flags
--use-fake-ui-for-media-streamand--use-fake-device-for-media-streamare set automatically, so no real camera/mic hardware is needed. - No X11/Wayland display is required — runs fully headless.
- Use
--durationto auto-leave after a set time.
Agent Behavior — MANDATORY
After launching the bot with exec background:true, you MUST poll the process to check for success/failure and send screenshots back to the user.
Step 1: Poll for output
After starting the background exec, poll the process every 10–15 seconds:
process action:pollStep 2: Parse markers and send images using the message tool
The bot prints machine-readable markers. When you see them, you MUST use the message tool to send the screenshot image to the user.
On success — bot prints [OPENUTTER_SUCCESS_IMAGE] <path>:
message action:"send" media:"./openutter/joined-meeting.png" content:"Successfully joined the meeting!"On screenshot request — bot prints [OPENUTTER_SCREENSHOT] <path>:
message action:"send" media:"./openutter/on-demand-screenshot.png" content:"Here's the current meeting view"On failure — bot prints [OPENUTTER_DEBUG_IMAGE] <path> (or exits non-zero):
message action:"send" media:"./openutter/debug-join-failed.png" content:"Could not join the meeting. Here is what the bot saw"CRITICAL: ALWAYS use the message tool with media:"./openutter/<filename>.png" to send screenshots. Use relative paths only (starting with ./). Never use absolute paths or ~ paths. NEVER just describe what happened in text. The user MUST receive the actual image.
When the user asks "send me screenshot" or "what do you see", run utter-screenshot.ts, then use the message tool with media:"./openutter/on-demand-screenshot.png".
Step 3: When user asks about meeting content
CRITICAL: When the user asks what's happening, what someone said, or anything about meeting content — run utter-transcript.ts. NEVER use utter-screenshot.ts for this.
exec command:"npx tsx skills/openutter/scripts/utter-transcript.ts"Read the output and summarize it for the user. Use --last 20 for long meetings.
On meeting end — bot prints [OPENUTTER_TRANSCRIPT] <path>: Run utter-transcript.ts and provide a summary to the user.
When to use which script
| User asks... | Use this script |
|---|---|
| "what are they saying?" | utter-transcript.ts |
| "what's happening in the meeting?" | utter-transcript.ts |
| "summarize the meeting" | utter-transcript.ts |
| "what did they talk about?" | utter-transcript.ts |
| "send me a screenshot" | utter-screenshot.ts |
| "what does the meeting look like?" | utter-screenshot.ts |
NEVER read or analyze screenshot images to understand meeting content.
Screenshot files
~/.openclaw/workspace/openutter/joined-meeting.png— confirmation screenshot after joining~/.openclaw/workspace/openutter/debug-join-failed.png— join button not found~/.openclaw/workspace/openutter/debug-admit-failed.png— not admitted / blocked / timed out
Troubleshooting
- Join button not found: Google Meet UI changes occasionally. The debug screenshot shows what the bot saw — send it to the user.
- Not admitted: The bot joins as a guest and needs host approval. Ask the host to admit "OpenUtter Bot". If timed out, the debug screenshot is sent automatically.
- No captions captured: The CC button selector may change with Meet updates. If the transcript is empty, captions may not have been enabled. Try
--headedto verify the CC button is clicked. - Headless blocked: The bot uses stealth patches to bypass headless detection. If Google Meet blocks it, try
--headedfor debugging.