json-render-core SKILL.md skillA

json-render-core 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-core@git:20260401.0f16486

Pins git:20260401.0f16486 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-core/SKILL.md
Versions recorded
1
Latest version
git:20260401.0f16486, committed Apr 1, 2026
Size
9,213 bytes
Repository stars
30
License
MIT

Core package for defining schemas, catalogs, and AI prompt generation for json-render. Use when working with @json-render/core, defining schemas, creating catalogs, or building JSON specs for UI/video generation.

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/core

Core package for schema definition, catalog creation, and spec streaming.

## Key Concepts

- **Schema**: Defines the structure of specs and catalogs (use `defineSchema`)
- **Catalog**: Maps component/action names to their definitions (use `defineCatalog`)
- **Spec**: JSON output from AI that conforms to the schema
- **SpecStream**: JSONL streaming format for progressive spec building

## Defining a Schema

```typescript
import { defineSchema } from "@json-render/core";

export const schema = defineSchema((s) => ({
  spec: s.object({
    // Define spec structure
  }),
  catalog: s.object({
    components: s.map({
      props: s.zod(),
      description: s.string(),
    }),
  }),
}), {
  promptTemplate: myPromptTemplate, // Optional custom AI prompt
});
```

## Creating a Catalog

```typescript
import { defineCatalog } from "@json-render/core";
import { schema } from "./schema";
import { z } from "zod";

export const catalog = defineCatalog(schema, {
  components: {
    Button: {
      props: z.object({
        label: z.string(),
        variant: z.enum(["primary", "secondary"]).nullable(),
      }),
      description: "Clickable button component",
    },
  },
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add pskoett/pmx-canvas/json-render-core@sha256:bf7a78fbbb5f357c

The line at the top of this page pins the label git:20260401.0f16486, 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_blnzv24thwrwi3aw.svg)](https://markdownregistry.com/a/art_blnzv24thwrwi3aw)

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Versions

The registry has recorded 1 version of this file, committed on Apr 1, 2026.

versioncommittedcommitsizeaudit
git:20260401.0f16486 latest2026-04-01 0f16486 9,213 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 (9213 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_blnzv24thwrwi3aw
GET https://markdownregistry.com/api/v1/resolve?ref=pskoett/pmx-canvas/json-render-core
GET https://markdownregistry.com/api/v1/blob/bf7a78fbbb5f357c60f2b36952d3fddaaf26a320e151302e0eb9d530d5426c36

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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