MCPInstall

solid

by vercel-labs OfficialDevOps & Cloud

SolidJS renderer for json-render. Use when building @json-render/solid catalogs/registries, wiring Renderer providers, implementing bindings/actions, or troubleshooting Solid-specific reactivity patterns.

Installs
1.1K
Last 24h
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/vercel-labs/json-render --skill solid
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads solid automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

@json-render/solid

@json-render/solid renders json-render specs into Solid component trees with fine-grained reactivity.

Quick Start

import { Renderer, JSONUIProvider } from "@json-render/solid";
import type { Spec } from "@json-render/solid";
import { registry } from "./registry";

export function App(props: { spec: Spec | null }) {
  return (
    <JSONUIProvider registry={registry} initialState={{}}>
      <Renderer spec={props.spec} registry={registry} />
    </JSONUIProvider>
  );
}

Create a Catalog

import { defineCatalog } from "@json-render/core";
import { schema } from "@json-render/solid/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",
    },
    Card: {
      props: z.object({ title: z.string() }),
      description: "Card container",
    },
  },
  actions: {
    submit: { description: "Submit data" },
  },
});

Define Components

Components receive ComponentRenderProps from the renderer:

interface ComponentRenderProps<P = Record<string, unknown>> {
  element: UIElement<string, P>;
  children?: JSX.Element;
  emit: (event: string) => void;
  on: (event: string) => EventHandle;
  bindings?: Record<string, string>;
  loading?: boolean;
}

Example:

import type { BaseComponentProps } from "@json-render/solid";

export function Button(props: BaseComponentProps<{ label: string }>) {
  return (
    <button onClick={() => props.emit("press")}>{props.props.label}</button>
  );
}

Create a Registry

import { defineRegistry } from "@json-render/solid";
import { catalog } from "./catalog";
import { Card } from "./Card";
import { Button } from "./Button";

const { registry, handlers, executeAction } = defineRegistry(catalog, {
  components: {
    Card,
    Button,
  },
  actions: {
    submit: async (params, setState, state) => {
      // custom action logic
    },
  },
});

Spec Structure

{
  "root": "card1",
  "elements": {
    "card1": {
      "type": "Card",
      "props": { "title": "Hello" },
      "children": ["btn1"]
    },
    "btn1": {
      "type": "Button",
      "props": { "label": "Click me" },
      "on": {
        "press": { "action": "submit" }
      }
    }
  }
}

Providers

  • StateProvider: state model read/write and controlled mode via store
  • VisibilityProvider: evaluates visible conditions
  • ValidationProvider: field validation + validateForm integration
  • ActionProvider: runs built-in and custom actions
  • JSONUIProvider: combined provider wrapper

Hooks

  • useStateStore, useStateValue, useStateBinding
  • useVisibility, useIsVisible
  • useActions, useAction
  • useValidation, useOptionalValidation, useFieldValidation
  • useBoundProp
  • useUIStream, useChatUI

Built-in Actions

Handled automatically by ActionProvider:

  • setState
  • pushState
  • removeState
  • validateForm

Dynamic Props and Bindings

Nested lists can set repeat.statePath to { "$item": "field" } inside an enclosing repeat.

Supported expression forms include:

  • {"$state": "/path"}
  • {"$bindState": "/path"}
  • {"$bindItem": "field"}
  • {"$template": "Hi ${/user/name}"}
  • {"$computed": "fn", "args": {...}}
  • {"$cond": <condition>, "$then": <value>, "$else": <value>}

Use useBoundProp in components for writable bound values:

import { useBoundProp, type BaseComponentProps } from "@json-render/solid";

function Input(props: BaseComponentProps<{ value?: string }>) {
  const [, setValue] = useBoundProp(props.props.value, props.bindings?.value);
  return (
    <input
      value={String(props.props.value ?? "")}
      onInput={(e) => setValue(e.currentTarget.value)}
    />
  );
}

useBoundProp returns a scalar value and a write-back setter. Read the resolved prop inside JSX so later state updates remain reactive.

useStateValue, useStateBinding, and the state / errors / isValid fields from useFieldValidation are reactive accessors in Solid. Call them as functions inside JSX, createMemo, or createEffect.

Solid Reactivity Rules

  • Do not destructure component props in function signatures when values need to stay reactive.
  • Keep changing reads inside JSX expressions, createMemo, or createEffect.
  • Context values are exposed through getter-based objects so consumers always observe live signals.

Streaming UI

import { useUIStream, Renderer } from "@json-render/solid";

const stream = useUIStream({ api: "/api/generate-ui" });
await stream.send("Create a support dashboard");

<Renderer
  spec={stream.spec}
  registry={registry}
  loading={stream.isStreaming}
/>;

Use useChatUI for chat + UI generation flows.

FAQ

What does the solid skill do?

SolidJS renderer for json-render. Use when building @json-render/solid catalogs/registries, wiring Renderer providers, implementing bindings/actions, or troubleshooting Solid-specific reactivity patterns.

How do I install solid?

Run npx skills add https://github.com/vercel-labs/json-render --skill solid in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/solid/ (personal) or .claude/skills/solid/ (project).

Which AI agents can use solid?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is solid safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains solid?

It is published by vercel-labs in vercel-labs/json-render, and it is an official skill from the maker of the technology it covers. It has 1,060 recorded installs.

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