# How to Regenerate the GPT Image 2 Style Skill References

> Easily regenerate GPT Image 2 style skill references with one command. Learn how to update your GPT-Image2 style library and ensure accurate data output.

- Repository: [苍何/awesome-gpt-image-2](https://github.com/freestylefly/awesome-gpt-image-2)
- Tags: how-to-guide
- Published: 2026-09-06

---

**To regenerate the GPT Image 2 style skill references, run `npm run generate:style-skill` from the repository root, which validates your data and outputs an updated reference document to [`agents/skills/gpt-image-2-style-library/references/style-library.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/agents/skills/gpt-image-2-style-library/references/style-library.md).**

The **freestylefly/awesome-gpt-image-2** repository organizes prompt templates, visual styles, and scene definitions in a structured JSON library. Keeping the AI-readable reference documentation synchronized with this data is essential for the GPT Image 2 skill to access accurate, up-to-date guidance. This article explains the complete regeneration pipeline implemented in `scripts/generate-style-skill.mjs`.

## Overview of the Regeneration Process

The style skill reference is a Markdown document that catalogues every prompt **template**, **category**, **style**, and **scene** defined in [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json). Rather than maintaining this document manually, the repository uses an automated generator that enforces data integrity and produces a consistently formatted output.

The `generate-style-skill.mjs` script performs three core operations: loading and validating the source data, rendering the reference Markdown, and writing the final file to the skill's directory.

## Step 1: Load and Validate the Style Library

Before generating any output, the script rigorously validates the source data to prevent broken references or missing assets.

### Read and Parse [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json)

The script imports `readJson` to load the master data file:

```javascript
// Simplified excerpt from scripts/generate-style-skill.mjs
const library = await readJson('data/style-library.json');

```

This single JSON file contains all template definitions, category hierarchies, style descriptors, and scene configurations used throughout the project.

### Enforce Data Integrity Checks

The `assertUnique` function verifies that every template, category, style, and scene possesses a **unique identifier**. Duplicate IDs cause immediate failure with descriptive error messages.

Two additional validation layers protect downstream consumers:

- **Template anchor verification** — The script searches [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md) for anchor tags matching the pattern `<a name="([^"]+)"></a>` to confirm every template ID has a corresponding documentation entry
- **Cover image existence check** — The `localImagePath` helper confirms that every referenced cover image exists under `data/images/`

Any validation failure throws a detailed error, halting the process before incomplete data reaches the generated reference.

## Step 2: Render the Reference Markdown

Once validation passes, the `renderReference` function assembles the complete Markdown document.

### Structure of the Generated Document

For each template, the renderer outputs:

- **Title** (English and Chinese)
- Unique **ID** and **category**
- Associated **styles** and **scenes**
- **Tags** and **cover image path**
- Hyperlink back to the original definition in [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md)
- **Example case IDs**

The document also includes structured sections for multilingual guidance:

- **"Use when"** — Context descriptions in both languages
- **"Guidance"** — Best practices and recommendations
- **"Pitfalls"** — Common mistakes to avoid

Finally, the script appends summary tables organizing all categories, styles, and scenes for quick scanning.

### Content Safety Filtering

Before finalizing the output, the `assertNoPattern` function scans the rendered Markdown for **disallowed Chinese phrasing**. This safety layer ensures generated content adheres to project communication standards.

## Step 3: Write the Output File

The script completes the pipeline by:

1. Creating the target directory `agents/skills/gpt-image-2-style-library/references/` if absent
2. Writing the rendered Markdown to [`style-library.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/style-library.md) via `writeFileSync`
3. Logging the absolute path to the newly generated file for immediate confirmation

The final output location is:

```

agents/skills/gpt-image-2-style-library/references/style-library.md

```

This path is hardcoded in the generator and consumed by the GPT Image 2 skill system.

## How to Run the Regeneration

Choose your preferred execution method from the options below.

### Option A: npm Script (Recommended)

```bash
npm run generate:style-skill

```

This command invokes the script through the shortcut defined in [`package.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/package.json).

### Option B: Direct Node Execution

```bash
node scripts/generate-style-skill.mjs

```

Use this when debugging or when npm is unavailable in your environment.

### Option C: Programmatic Invocation

```javascript
// Trigger from another build script or CI pipeline
import { execSync } from 'node:child_process';

execSync('node scripts/generate-style-skill.mjs', { stdio: 'inherit' });

```

This pattern integrates the generator into larger automation workflows.

## Verifying the Generated Reference

After regeneration, confirm the output with a quick file inspection:

```javascript
import { readFileSync } from 'node:fs';
import { join } from 'node:path';

const refPath = join(
  process.cwd(),
  'agents',
  'skills',
  'gpt-image-2-style-library',
  'references',
  'style-library.md'
);

const reference = readFileSync(refPath, 'utf8');
console.log(`Generated ${reference.length} characters`);
console.log(reference.slice(0, 500)); // Preview first 500 characters

```

Successful execution produces a file exceeding typical template counts—verify the byte size and character count grow appropriately when adding new library entries.

## Key Files in the Generation Pipeline

Understanding the file relationships helps troubleshoot regeneration failures:

| File | Purpose |
|------|---------|
| `scripts/generate-style-skill.mjs` | Core generator implementing load, validate, render, and write operations |
| [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json) | Master data source containing all templates, categories, styles, and scenes |
| [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md) | Template definitions with HTML anchors referenced during validation |
| [`agents/skills/gpt-image-2-style-library/references/style-library.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/agents/skills/gpt-image-2-style-library/references/style-library.md) | Generated output consumed by the GPT Image 2 skill |
| [`package.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/package.json) | Defines the `generate:style-skill` npm script shortcut |
| `data/images/` | Directory containing cover images validated during generation |

## When to Regenerate

Trigger reference regeneration after any of these changes:

- Adding, modifying, or removing templates in [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json)
- Updating category, style, or scene definitions
- Changing template documentation anchors in [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md)
- Adding new cover images to `data/images/`

The validation layer catches most synchronization errors, but manual verification of the generated reference ensures the skill receives accurate guidance.

## Summary

- **Execute `npm run generate:style-skill`** to regenerate the GPT Image 2 style skill references in one command
- The `generate-style-skill.mjs` script validates [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json) against [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md) and `data/images/` before producing output
- Validation failures throw detailed errors preventing generation of inconsistent references
- The generated Markdown includes multilingual guidance, summary tables, and direct links to source documentation
- Output location: [`agents/skills/gpt-image-2-style-library/references/style-library.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/agents/skills/gpt-image-2-style-library/references/style-library.md)

## Frequently Asked Questions

### What happens if a template ID is duplicated?

The `assertUnique` function detects duplicate identifiers during validation and throws a descriptive error listing the conflicting IDs. The regeneration halts immediately, requiring you to resolve the duplication in [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json) before retrying.

### Why does the generator check for template anchors in [`docs/templates.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/docs/templates.md)?

Each template entry in the generated reference includes a hyperlink back to its full documentation. The anchor verification ensures these links remain functional—if a template ID lacks a corresponding `<a name="..."></a>` tag, the generator fails fast with a clear missing-anchor message.

### Can I modify the output path for the generated reference?

The output path [`agents/skills/gpt-image-2-style-library/references/style-library.md`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/agents/skills/gpt-image-2-style-library/references/style-library.md) is hardcoded in `scripts/generate-style-skill.mjs`. Changing it requires editing the `writeFileSync` call near the end of the script, though this is discouraged as the GPT Image 2 skill expects the reference at this specific location.

### What causes the "disallowed Chinese phrasing" error?

The `assertNoPattern` filter blocks specific Chinese character sequences defined as undesirable for this project's output. If your template content triggers this error, review the [`data/style-library.json`](https://github.com/freestylefly/awesome-gpt-image-2/blob/main/data/style-library.json) entries for non-compliant phrasing and adjust the source text accordingly.