davepoon/buildwithclaude · plugins/all-skills/skills/json-canvas/SKILL.md

json-canvas skillA

json-canvas is agent-read markdown (skill) from davepoon/buildwithclaude: Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections. Use when working with .canvas files, creating visual canvases, mind maps, flowcharts, or when the user mentions Canvas files in Obsidian..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add davepoon/buildwithclaude/json-canvas@git:20260109.d473212
Exact content
mdr add davepoon/buildwithclaude/json-canvas@sha256:141067e54bf7a66c

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_k4qozhs2ghg763vh.svg)](https://markdownregistry.com/a/art_k4qozhs2ghg763vh)

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Versions

versioncommittedcommitsizeaudit
git:20260109.d473212 latest2026-01-09 d473212 12,026 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12026 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

davepoon/buildwithclaude · 3,477 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_k4qozhs2ghg763vh
GET https://markdownregistry.com/api/v1/resolve?ref=davepoon/buildwithclaude/json-canvas
GET https://markdownregistry.com/api/v1/blob/141067e54bf7a66cd22a6d5cf284042b81484fe3e8195446196f431a111cc573

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.