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Display HTML content on connected OpenClaw nodes (Mac app, iOS, Android).
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
Inspect and safely update Kabot configuration, model/memory/provider settings, channel account policies, allowlists, and related status or log evidence when debugging why a setting or runtime behavior is wrong.
Use when users ask about current weather, temperature, rain, or near-term forecasts for a real location. Not for historical weather archives, official severe-weather alerts, aviation, marine, or climate-trend analysis.
Interact with GitHub using the `gh` CLI. Use `gh issue`, `gh pr`, `gh run`, and `gh api` for issues, PRs, CI runs, and advanced queries.
Mengunduh file dari URL ke direktori workspace lokal kabot dengan verifikasi hash dan indexing memory.
Use CodexBar CLI local cost usage to summarize per-model usage for Codex or Claude, including the current (most recent) model or a full model breakdown. Trigger when asked for model-level usage/cost data from codexbar, or when you need a scriptable per-model summary from codexbar cost JSON.
Allows the agent to restart or shut down the bot.
| name | canvas |
| description | Display HTML content on connected OpenClaw nodes (Mac app, iOS, Android). |
Display HTML content on connected OpenClaw 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/__openclaw__/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 ~/.openclaw/openclaw.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 ~/.openclaw/openclaw.json | jq '.gateway.bind'
Then construct the URL:
http://127.0.0.1:18793/__openclaw__/canvas/<file>.htmlhttp://<hostname>:18793/__openclaw__/canvas/<file>.htmlFind your Tailscale hostname:
tailscale status --json | jq -r '.Self.DNSName' | sed 's/\.$//'
openclaw 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/__openclaw__/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 ~/.openclaw/openclaw.json | jq '.gateway.bind'lsof -i :18793curl http://<hostname>:18793/__openclaw__/canvas/<file>.htmlSolution: Use the full hostname matching your bind mode, not localhost.
Always specify node:<node-id> parameter.
Node is offline. Use openclaw nodes list to find online nodes.
If live reload isn't working:
liveReload: true in configThe canvas host serves from /__openclaw__/canvas/ prefix:
http://<host>:18793/__openclaw__/canvas/index.html → ~/clawd/canvas/index.html
http://<host>:18793/__openclaw__/canvas/games/snake.html → ~/clawd/canvas/games/snake.html
The /__openclaw__/canvas/ prefix is defined by CANVAS_HOST_PATH constant.
hide it or navigate away