create-canvas-extension SKILL.md skillA
create-canvas-extension from github/awesome-copilot is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add github/awesome-copilot/create-canvas-extension@git:20260824.37dcfd2Pins git:20260824.37dcfd2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- github/awesome-copilot
- Path
.github/skills/create-canvas-extension/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260824.37dcfd2, committed Aug 24, 2026
- First version recorded
- Aug 6, 2026
- Size
- 5,243 bytes
- Repository stars
- 40,629
- License
- MIT
Create or register a canvas extension in the awesome-copilot repository. Use when asked to scaffold a new canvas extension, create its plugin.json, add a reusable extension to one or more plugins, or migrate extension metadata. Extensions are reusable source under extensions/; shippable plugin manifests belong under plugins/.
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
# Create a canvas extension Use this skill only for the `github/awesome-copilot` repository. Canvas extensions are reusable source components. They do not have a `plugin.json` under `extensions/`. ## Required decisions Before creating files, ask for each missing value: 1. **Extension ID**: lowercase kebab-case, matching the source folder and plugin name. 2. **Display metadata**: - description - version (default `1.0.0`) - author name and optional URL - keywords (lowercase, hyphenated, maximum 10) - repository and license (default to the repository URL and `MIT` when appropriate) 3. **Canvas entrypoint**: confirm whether the extension already has `extension.mjs`. If not, create a minimal entrypoint only when the user provides enough implementation details; otherwise create the directory and leave an explicit TODO. 4. **Preview image**: obtain an existing `assets/preview.png` path or ask the user to add it. Do not invent a binary image or silently use a misleading placeholder. 5. **Plugin registration**: - For a standalone installable canvas plugin, create `plugins/<extension-id>`. …
Read the whole file at its exact version.
How to install
mdr add github/awesome-copilot/create-canvas-extension@sha256:8efc23571f738d4eThe line at the top of this page pins the label git:20260824.37dcfd2, 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_yutsfs2hrnnuhihs)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 6, 2026 and Aug 24, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260824.37dcfd2 latest | 2026-08-24 | 37dcfd2 | 5,243 B | A | view · diff |
| git:20260806.a7fdcd5 | 2026-08-06 | a7fdcd5 | 5,174 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5243 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 link to a raw IP address
- pass: No script tag
Source
github/awesome-copilot · 40,629 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yutsfs2hrnnuhihs GET https://markdownregistry.com/api/v1/resolve?ref=github/awesome-copilot/create-canvas-extension GET https://markdownregistry.com/api/v1/blob/8efc23571f738d4e9d9d5b6fb25d664ff438c7db2c3b3792399d04a9e66991b3
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.