json-render-mcp SKILL.md skillA

json-render-mcp from pskoett/pmx-canvas is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add pskoett/pmx-canvas/json-render-mcp@git:20260923.561e6ec

Pins git:20260923.561e6ec in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
pskoett/pmx-canvas
Path
skills/json-render-mcp/SKILL.md
Versions recorded
3
Latest version
git:20260923.561e6ec, committed Sep 23, 2026
First version recorded
Apr 1, 2026
Size
9,871 bytes
Repository stars
30
License
MIT

Builds interactive json-render panels with PMX Canvas native tools or standalone MCP Apps. Use for stateful forms, repeated content, and AX actions in PMX Canvas, or MCP-hosted UIs in Claude, ChatGPT, Cursor, and VS Code.

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

# @json-render/mcp

MCP Apps integration that serves json-render UIs as interactive MCP Apps inside Claude, ChatGPT, Cursor, VS Code, and other MCP-capable clients.

In `pmx-canvas`, prefer the native `canvas_render { action: "add-json-render" }` and
`canvas_render { action: "add-graph" }` composite actions first. They store validated specs
directly in canvas node state and render them through the local `pmx-canvas` viewer route without
needing a separate sidecar server.

## PMX Canvas workflow (json-render 0.21)

1. Read `canvas://schema` (or use `canvas_render { action: "describe-schema" }`) for
   the installed component catalog. PMX includes shadcn components and its own charts;
   do not assume every component or action from an upstream example is registered.
2. Build a complete `{ root, elements, state }` spec. Validate with
   `canvas_render { action: "validate", type: "json-render", spec }`.
3. Create it with `canvas_render { action: "add-json-render", title, spec }`.
   For incremental generation, use `action: "stream-json-render"`, reuse the returned
   `nodeId` for subsequent patches, and set `done: true` on the final call.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add pskoett/pmx-canvas/json-render-mcp@sha256:05ecb90ef52d6404

The line at the top of this page pins the label git:20260923.561e6ec, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_be2hqahntblbvdbk.svg)](https://markdownregistry.com/a/art_be2hqahntblbvdbk)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Apr 1, 2026 and Sep 23, 2026, about one every 87 days.

versioncommittedcommitsizeaudit
git:20260923.561e6ec latest2026-09-23 561e6ec 9,871 BA view · diff
git:20260707.f60c5e32026-07-07 f60c5e3 3,851 BA view · diff
git:20260401.0f164862026-04-01 0f16486 3,807 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (9871 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

pskoett/pmx-canvas · 30 stars · license MIT · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_be2hqahntblbvdbk
GET https://markdownregistry.com/api/v1/resolve?ref=pskoett/pmx-canvas/json-render-mcp
GET https://markdownregistry.com/api/v1/blob/05ecb90ef52d64049bdb6110484a1b6bedbe73e048b4310a7b3805fb10c8aea6

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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