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Display HTML content on connected Clawdbot nodes (Mac app, iOS, Android). Use for games, visualizations, dashboards, and interactive demos.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
Build or update the BlueBubbles external channel plugin for Clawdbot (extension package, REST send/probe, webhook inbound).
Use the ClawdHub CLI to search, install, update, and publish agent skills from clawdhub.com. Use when you need to fetch new skills on the fly, sync installed skills to latest or a specific version, or publish new/updated skill folders with the npm-installed clawdhub CLI.
Run Codex CLI, Claude Code, OpenCode, or Pi Coding Agent via background process for programmatic control.
Use when you need to control Discord from Clawdbot via the discord tool: send messages, react, post or upload stickers, upload emojis, run polls, manage threads/pins/search, create/edit/delete channels and categories, fetch permissions or member/role/channel info, or handle moderation actions in Discord DMs or channels.
Helper skill to search and discover other AI skills/tools using the 'skills' CLI.
| name | canvas |
| description | Display HTML content on connected Clawdbot nodes (Mac app, iOS, Android). Use for games, visualizations, dashboards, and interactive demos. |
| metadata | {"clawdbot":{"emoji":"🖼️"}} |
Display HTML content on connected Clawdbot nodes (Mac app, iOS, Android).
The canvas tool lets you present web content on any connected node's canvas view. Great for:
┌─────────────────┐ ┌──────────────────┐ ┌─────────────┐
│ Canvas Host │────▶│ Node Bridge │────▶│ Node App │
│ (HTTP Server) │ │ (TCP Server) │ │ (Mac/iOS/ │
│ Port 18793 │ │ Port 18790 │ │ Android) │
└─────────────────┘ └──────────────────┘ └─────────────┘
canvasHost.root directoryThe canvas host server binds based on gateway.bind setting:
| Bind Mode | Server Binds To | Canvas URL Uses |
|---|---|---|
loopback | 127.0.0.1 | localhost (local only) |
lan | LAN interface | LAN IP address |
tailnet | Tailscale interface | Tailscale hostname |
auto | Best available | Tailscale > LAN > loopback |
Key insight: The canvasHostHostForBridge is derived from bridgeHost. When bound to Tailscale, nodes receive URLs like:
http://<tailscale-hostname>:18793/__clawdbot__/canvas/<file>.html
This is why localhost URLs don't work - the node receives the Tailscale hostname from the bridge!
| Action | Description |
|---|---|
present | Show canvas with optional target URL |
hide | Hide the canvas |
navigate | Navigate to a new URL |
eval | Execute JavaScript in the canvas |
snapshot | Capture screenshot of canvas |
In ~/.liteclaw/liteclaw.json:
{
"canvasHost": {
"enabled": true,
"port": 18793,
"root": "/Users/you/clawd/canvas",
"liveReload": true
},
"gateway": {
"bind": "auto"
}
}
When liveReload: true (default), the canvas host:
Great for development!
Place files in the canvas root directory (default ~/clawd/canvas/):
cat > ~/clawd/canvas/my-game.html << 'HTML'
<!DOCTYPE html>
<html>
<head><title>My Game</title></head>
<body>
<h1>Hello Canvas!</h1>
</body>
</html>
HTML
Check how your gateway is bound:
cat ~/.liteclaw/liteclaw.json | jq '.gateway.bind'
Then construct the URL:
http://127.0.0.1:18793/__clawdbot__/canvas/<file>.htmlhttp://<hostname>:18793/__clawdbot__/canvas/<file>.htmlFind your Tailscale hostname:
tailscale status --json | jq -r '.Self.DNSName' | sed 's/\.$//'
clawdbot nodes list
Look for Mac/iOS/Android nodes with canvas capability.
canvas action:present node:<node-id> target:<full-url>
Example:
canvas action:present node:mac-63599bc4-b54d-4392-9048-b97abd58343a target:http://peters-mac-studio-1.sheep-coho.ts.net:18793/__clawdbot__/canvas/snake.html
canvas action:navigate node:<node-id> url:<new-url>
canvas action:snapshot node:<node-id>
canvas action:hide node:<node-id>
Cause: URL mismatch between server bind and node expectation.
Debug steps:
cat ~/.liteclaw/liteclaw.json | jq '.gateway.bind'lsof -i :18793curl http://<hostname>:18793/__clawdbot__/canvas/<file>.htmlSolution: Use the full hostname matching your bind mode, not localhost.
Always specify node:<node-id> parameter.
Node is offline. Use clawdbot nodes list to find online nodes.
If live reload isn't working:
liveReload: true in configThe canvas host serves from /__clawdbot__/canvas/ prefix:
http://<host>:18793/__clawdbot__/canvas/index.html → ~/clawd/canvas/index.html
http://<host>:18793/__clawdbot__/canvas/games/snake.html → ~/clawd/canvas/games/snake.html
The /__clawdbot__/canvas/ prefix is defined by CANVAS_HOST_PATH constant.
hide it or navigate away