canvas SKILL.md skillB
canvas from bitterbot-ai/bitterbot-desktop is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bitterbot-ai/bitterbot-desktop/canvas@git:20260422.fa90830Pins git:20260422.fa90830 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bitterbot-ai/bitterbot-desktop
- Path
skills/canvas/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260422.fa90830, committed Apr 22, 2026
- First version recorded
- Mar 28, 2026
- Size
- 5,969 bytes
- Repository stars
- 2,480
- License
- MIT
Display and control HTML content on connected Bitterbot nodes (Mac, iOS, Android) via the canvas host server. Use when presenting games, visualizations, dashboards, or interactive demos on a connected device, navigating canvas URLs, capturing canvas snapshots, or debugging canvas connectivity.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Canvas Display HTML content on connected Bitterbot nodes (Mac app, iOS, Android). ## Overview The canvas tool lets you present web content on any connected node's canvas view. Great for: - Displaying games, visualizations, dashboards - Showing generated HTML content - Interactive demos ## How It Works ### Architecture ``` ┌─────────────────┐ ┌──────────────────┐ ┌─────────────┐ │ Canvas Host │────▶│ Node Bridge │────▶│ Node App │ │ (HTTP Server) │ │ (TCP Server) │ │ (Mac/iOS/ │ │ Port 18793 │ │ Port 18790 │ │ Android) │ └─────────────────┘ └──────────────────┘ └─────────────┘ ``` 1. **Canvas Host Server**: Serves static HTML/CSS/JS files from `canvasHost.root` directory 2. **Node Bridge**: Communicates canvas URLs to connected nodes 3. **Node Apps**: Render the content in a WebView ### Tailscale Integration The 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) | …
Read the whole file at its exact version.
How to install
mdr add bitterbot-ai/bitterbot-desktop/canvas@sha256:28f5b129d3431a96The line at the top of this page pins the label git:20260422.fa90830, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_6dagveti7bzillzy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 28, 2026 and Apr 22, 2026, about one every 13 days. Its first recorded version is graded C and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260422.fa90830 latest | 2026-04-22 | fa90830 | 5,969 B | B | view · diff |
| git:20260413.388cdc8 | 2026-04-13 | 388cdc8 | 5,543 B | C | view · diff |
| git:20260328.33f9833 | 2026-03-28 | 33f9833 | 5,523 B | C | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1:18793)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5969 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
bitterbot-ai/bitterbot-desktop · 2,480 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6dagveti7bzillzy GET https://markdownregistry.com/api/v1/resolve?ref=bitterbot-ai/bitterbot-desktop/canvas GET https://markdownregistry.com/api/v1/blob/28f5b129d3431a96e9e2f3394a45d73849af6bd2b1130784e572a952b3874132
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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