widget-generator skill

Widget Generator Skill

This skill guides creation of widget plugins for prompts.chat. Widgets are injected into prompt feeds to display promotional content, sponsor cards, or custom interactive components.

Overview

Widgets support two rendering modes:

1. Standard prompt widget - Uses default PromptCard styling (like coderabbit.ts)
2. Custom render widget - Full custom React component (like book.tsx)

Prerequisites

Before creating a widget, gather from the user:

Step 1: Gather Widget Configuration

Ask the user for the following configuration options:

Basic Info

- id: string (unique, kebab-case)
- name: string (display name)
- slug: string (URL-friendly identifier)
- title: string (card title)
- description: string (card description)

Content (for standard mode)

- content: string (prompt content, can be multi-line markdown)
- type: "TEXT" | "STRUCTURED"
- structuredFormat?: "json" | "yaml" (if type is STRUCTURED)

Categorization

- tags?: string[] (e.g., ["AI", "Development"])
- category?: string (e.g., "Development", "Writing")

Action Button

- actionUrl?: string (CTA link)
- actionLabel?: string (CTA button text)

Sponsor (optional)

- sponsor?: {
    name: string
    logo: string (path to light mode logo)
    logoDark?: string (path to dark mode logo)
    url: string (sponsor website)
  }

Positioning Strategy

- positioning: {
    position: number (0-indexed start position, default: 2)
    mode: "once" | "repeat" (default: "once")
    repeatEvery?: number (for repeat mode, e.g., 30)
    maxCount?: number (max occurrences, default: 1 for once, unlimited for repeat)
  }

Injection Logic

- shouldInject?: (context) => boolean
  Context contains:
  - filters.q: search query
  - filters.category: category name
  - filters.categorySlug: category slug
  - filters.tag: tag filter
  - filters.sort: sort option
  - itemCount: total items in feed

Step 2: Create Widget File

Standard Widget (TypeScript only)

Create file: src/lib/plugins/widgets/{widget-id}.ts

import type { WidgetPlugin } from "./types";

export const {widgetId}Widget: WidgetPlugin = {
  id: "{widget-id}",
  name: "{Widget Name}",
  prompts: [
    {
      id: "{prompt-id}",
      slug: "{prompt-slug}",
      title: "{Title}",
      description: "{Description}",
      content: `{Multi-line content here}`,
      type: "TEXT",
      // Optional sponsor
      sponsor: {
        name: "{Sponsor Name}",
        logo: "/sponsors/{sponsor}.svg",
        logoDark: "/sponsors/{sponsor}-dark.svg",
        url: "{sponsor-url}",
      },
      tags: ["{Tag1}", "{Tag2}"],
      category: "{Category}",
      actionUrl: "{action-url}",
      actionLabel: "{Action Label}",
      positioning: {
        position: 2,
        mode: "repeat",
        repeatEvery: 50,
        maxCount: 3,
      },
      shouldInject: (context) => {
        const { filters } = context;
        
        // Always show when no filters active
        if (!filters?.q && !filters?.category && !filters?.tag) {
          return true;
        }
        
        // Add custom filter logic here
        return false;
      },
    },
  ],
};

Custom Render Widget (TSX with React)

Create file: src/lib/plugins/widgets/{widget-id}.tsx

import Link from "next/link";
import Image from "next/image";
import { Button } from "@/components/ui/button";
import type { WidgetPlugin } from "./types";

function {WidgetName}Widget() {
  return (
    <div className="group border rounded-[var(--radius)] overflow-hidden hover:border-foreground/20 transition-colors bg-gradient-to-br from-primary/5 via-background to-primary/10 p-5">
      {/* Custom widget content */}
      <div className="flex flex-col items-center gap-4">
        {/* Image/visual element */}
        <div className="relative w-full aspect-video">
          <Image
            src="/path/to/image.jpg"
            alt="{Alt text}"
            fill
            className="object-cover rounded-lg"
          />
        </div>
        
        {/* Content */}
        <div className="w-full text-center">
          <h3 className="font-semibold text-base mb-1.5">{Title}</h3>
          <p className="text-xs text-muted-foreground mb-4">{Description}</p>
          <Button asChild size="sm" className="w-full">
            <Link href="{action-url}">{Action Label}</Link>
          </Button>
        </div>
      </div>
    </div>
  );
}

export const {widgetId}Widget: WidgetPlugin 

Step 3: Register Widget

Edit src/lib/plugins/widgets/index.ts:

1. Add import at top:

import { {widgetId}Widget } from "./{widget-id}";

1. Add to widgetPlugins array:

const widgetPlugins: WidgetPlugin[] = [
  coderabbitWidget,
  bookWidget,
  {widgetId}Widget, // Add new widget
];

Step 4: Add Sponsor Assets (if applicable)

If the widget has a sponsor:

1. Add light logo: public/sponsors/{sponsor}.svg
2. Add dark logo (optional): public/sponsors/{sponsor}-dark.svg

Positioning Examples

Show once at position 5

positioning: {
  position: 5,
  mode: "once",
}

Repeat every 30 items, max 5 times

positioning: {
  position: 3,
  mode: "repeat",
  repeatEvery: 30,
  maxCount: 5,
}

Unlimited repeating

positioning: {
  position: 2,
  mode: "repeat",
  repeatEvery: 25,
  // No maxCount = unlimited
}

shouldInject Examples

Always show

shouldInject: () => true,

Only when no filters active

shouldInject: (context) => {
  const { filters } = context;
  return !filters?.q && !filters?.category && !filters?.tag;
},

Show for specific categories

shouldInject: (context) => {
  const slug = context.filters?.categorySlug?.toLowerCase();
  return slug?.includes("development") || slug?.includes("coding");
},

Show when search matches keywords

shouldInject: (context) => {
  const query = context.filters?.q?.toLowerCase() || "";
  return ["ai", "automation", "workflow"].some(kw => query.includes(kw));
},

Show only when enough items

shouldInject: (context) => {
  return (context.itemCount ?? 0) >= 10;
},

Custom Render Patterns

Card with gradient background

<div className="border rounded-[var(--radius)] overflow-hidden bg-gradient-to-br from-primary/5 via-background to-primary/10 p-5">