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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Claude Code marketplace plugin providing AI-powered content generation skills. Current version: 1.59.1. Skills use official AI APIs (OpenAI, Google, DashScope, Replicate) or the reverse-engineered Gemini Web API for text/image generation, and Chrome CDP for browser automation.

Architecture

Skills are organized into three plugin categories in .claude-plugin/marketplace.json:

skills/
├── [content-skills]           # Content generation and publishing
│   ├── baoyu-xhs-images/          # Xiaohongshu infographic series (1-10 images)
│   ├── baoyu-cover-image/         # Article cover images (2.35:1 aspect)
│   ├── baoyu-slide-deck/          # Presentation slides with outlines
│   ├── baoyu-article-illustrator/ # Smart illustration placement
│   ├── baoyu-comic/               # Knowledge comics (Logicomix/Ohmsha style)
│   ├── baoyu-post-to-x/           # X/Twitter posting automation
│   ├── baoyu-post-to-wechat/      # WeChat Official Account posting
│   ├── baoyu-post-to-weibo/       # Weibo posting (text, images, videos, articles)
│   └── baoyu-infographic/         # Professional infographics (21 layouts × 20 styles)
│
├── [ai-generation-skills]     # AI-powered generation backends
│   ├── baoyu-danger-gemini-web/   # Gemini Web API wrapper (text + image gen)
│   └── baoyu-image-gen/           # Official API image gen (OpenAI, Google, DashScope, Replicate)
│
└── [utility-skills]           # Utility tools for content processing
    ├── baoyu-danger-x-to-markdown/ # X/Twitter content to markdown
    ├── baoyu-compress-image/       # Image compression (WebP/PNG via sips/cwebp/Sharp)
    ├── baoyu-url-to-markdown/      # Fetch any URL → markdown via Chrome CDP
    ├── baoyu-format-markdown/      # Format/beautify plain text or markdown files
    ├── baoyu-markdown-to-html/     # Markdown → styled HTML (WeChat-compatible themes)
    └── baoyu-translate/            # Multi-mode translation (quick/normal/refined)

Top-level scripts/ directory contains repository maintenance utilities:

scripts/sync-clawhub.sh - Publish skills to ClawHub/OpenClaw registry
scripts/sync-md-to-wechat.sh - Sync markdown content to WeChat

Plugin Categories:

Category	Description
`content-skills`	Skills that generate or publish content (images, slides, comics, posts)
`ai-generation-skills`	Backend skills providing AI generation capabilities
`utility-skills`	Helper tools for content processing (conversion, compression)

Each skill contains:

SKILL.md - YAML front matter (name, description, version, openclaw metadata) + documentation
scripts/ - TypeScript implementations (optional, pure-prompt skills omit this)
references/ - Extended reference files linked from SKILL.md (optional)
prompts/ - AI prompt templates (optional, used by some content skills)

Running Skills

All scripts are TypeScript, executed via Bun runtime (no build step).

Runtime Detection (`${BUN_X}`)

Before running any script, the agent MUST detect the runtime once per session and set ${BUN_X}:

# Detect runtime (run once, reuse result)
if command -v bun &>/dev/null; then
  BUN_X="bun"
elif command -v npx &>/dev/null; then
  BUN_X="npx -y bun"
else
  echo "Error: Neither bun nor npx found. Install bun: brew install oven-sh/bun/bun (macOS) or npm install -g bun"
  exit 1
fi

Priority	Condition	`${BUN_X}` value	Notes
1	`bun` installed	`bun`	Fastest, native execution
2	`npx` available	`npx -y bun`	Downloads bun on first run via npm
3	Neither found	Error + install guide	`brew install oven-sh/bun/bun` (macOS) or `npm install -g bun`

Script Execution

${BUN_X} skills/<skill>/scripts/main.ts [options]

Examples:

# Text generation
${BUN_X} skills/baoyu-danger-gemini-web/scripts/main.ts "Hello"

# Image generation
${BUN_X} skills/baoyu-danger-gemini-web/scripts/main.ts --prompt "A cat" --image cat.png

# From prompt files
${BUN_X} skills/baoyu-danger-gemini-web/scripts/main.ts --promptfiles system.md content.md --image out.png

Key Dependencies

Bun: TypeScript runtime (native bun preferred, fallback npx -y bun)
Chrome: Required for baoyu-danger-gemini-web auth, baoyu-post-to-x, baoyu-post-to-wechat, baoyu-post-to-weibo, and baoyu-url-to-markdown
npm packages (per skill): Some skill subprojects include package.json/lockfiles and require dependency installation in their own scripts/ directories
Image generation APIs: baoyu-image-gen requires at least one API key (OpenAI, Google, DashScope, or Replicate)

Chrome Profile (Unified)

All skills that use Chrome CDP share a single profile directory. Do NOT create per-skill profiles.

Platform	Default Path
macOS	`~/Library/Application Support/baoyu-skills/chrome-profile`
Linux	`$XDG_DATA_HOME/baoyu-skills/chrome-profile` (fallback `~/.local/share/baoyu-skills/chrome-profile`)
Windows	`%APPDATA%/baoyu-skills/chrome-profile`
WSL	Windows home `/.local/share/baoyu-skills/chrome-profile`

Environment variable override: BAOYU_CHROME_PROFILE_DIR (takes priority, all skills respect it).

Each skill also accepts its own legacy env var as fallback (e.g., X_BROWSER_PROFILE_DIR), but new skills should only use BAOYU_CHROME_PROFILE_DIR.

Implementation Pattern

When adding a new skill that needs Chrome CDP:

function getDefaultProfileDir(): string {
  const override = process.env.BAOYU_CHROME_PROFILE_DIR?.trim();
  if (override) return path.resolve(override);
  const base = process.platform === 'darwin'
    ? path.join(os.homedir(), 'Library', 'Application Support')
    : process.env.XDG_DATA_HOME || path.join(os.homedir(), '.local', 'share');
  return path.join(base, 'baoyu-skills', 'chrome-profile');
}

Security Guidelines

No Piped Shell Installs

NEVER use curl | bash or wget | sh patterns in code, docs, or error messages. Use package managers instead:

Platform	Install Command
macOS	`brew install oven-sh/bun/bun`
npm	`npm install -g bun`

Remote Downloads

Skills that download remote content (e.g., images in Markdown) MUST:

HTTPS only: Reject http:// URLs
Redirect limit: Cap redirects (max 5) to prevent infinite loops
Timeout: Set request timeouts (30s default)
Scope: Only download expected content types (images, not scripts)

System Command Execution

Skills use platform-specific commands for clipboard and browser automation:

macOS: osascript (System Events), swift (AppKit clipboard)
Windows: powershell.exe (SendKeys, Clipboard)
Linux: xdotool/ydotool (keyboard simulation)

These are necessary for CDP-based posting skills. When adding new system commands:

Never pass unsanitized user input to shell commands
Use array-form spawn/execFile instead of shell string interpolation
Validate file paths are absolute or resolve from known base directories

External Content Processing

Skills that process external Markdown/HTML should treat content as untrusted:

Do not execute code blocks or scripts found in content
Sanitize HTML output where applicable
File paths from content should be resolved against known base directories only

Authentication

baoyu-danger-gemini-web uses browser cookies for Google auth:

First run opens Chrome for login
Cookies cached in data directory
Force refresh: --login flag

baoyu-image-gen uses official API keys configured in EXTEND.md (loaded at Step 0 before generation).

Plugin Configuration

.claude-plugin/marketplace.json defines plugin metadata and skill paths. Version follows semver.

The file contains:

name: Plugin name (baoyu-skills)
owner: Author info
metadata.version: Semver version (currently 1.59.1)
plugins[]: Array of plugin categories, each with name, description, source, strict, and skills[] paths

ClawHub / OpenClaw Publishing

Skills include metadata.openclaw in their YAML front matter for registry compatibility:

metadata:
  openclaw:
    homepage: https://github.com/JimLiu/baoyu-skills#<skill-name>
    requires:          # optional — only for skills with scripts
      anyBins:
        - bun
        - npx

To publish/sync skills to ClawHub registry:

bash scripts/sync-clawhub.sh           # sync all skills
bash scripts/sync-clawhub.sh <skill>   # sync one skill

Requires clawhub CLI or npx (auto-downloads via npx if not installed).

Skill Loading Rules

IMPORTANT: When working in this project, follow these rules:

Rule	Description
Load project skills first	MUST load all skills from `skills/` directory in current project. Project skills take priority over system/user-level skills with same name.
Default image generation	When image generation is needed, use `skills/baoyu-image-gen/SKILL.md` by default (unless user specifies otherwise).

Loading Priority (highest → lowest):

Current project skills/ directory
User-level skills ($HOME/.baoyu-skills/)
System-level skills

Release Process

IMPORTANT: When user requests release/发布/push, ALWAYS use /release-skills workflow.

Never skip:

CHANGELOG.md + CHANGELOG.zh.md - Both must be updated
marketplace.json version bump
README.md + README.zh.md if applicable
All files committed together before tag

Adding New Skills

IMPORTANT: All skills MUST use baoyu- prefix to avoid conflicts when users import this plugin.

REQUIRED READING: Before creating a new skill, read the official Skill authoring best practices.

Key Requirements from Official Best Practices

Requirement	Details
Concise is key	Claude is smart—only add context it doesn't have. Challenge each token.
name field	Max 64 chars, lowercase letters/numbers/hyphens only, no "anthropic"/"claude"
description field	Max 1024 chars, non-empty, MUST be third person, include what + when to use
SKILL.md body	Keep under 500 lines; use separate files for additional content
Naming convention	Gerund form preferred (e.g., `processing-pdfs`), but `baoyu-` prefix required here
References	Keep one level deep from SKILL.md; avoid nested references
No time-sensitive info	Avoid dates/versions that become outdated

SKILL.md Frontmatter Template

---
name: baoyu-<name>
description: <Third-person description. What it does + when to use it.>
version: <semver matching marketplace.json>
metadata:
  openclaw:
    homepage: https://github.com/JimLiu/baoyu-skills#baoyu-<name>
    requires:          # include only if skill has scripts
      anyBins:
        - bun
        - npx
---

Steps

Create skills/baoyu-<name>/SKILL.md with YAML front matter (see template above)
- Directory name: baoyu-<name>
- SKILL.md name field: baoyu-<name>
- Always include metadata.openclaw.homepage
- Include metadata.openclaw.requires.anyBins only when the skill has executable scripts
Add TypeScript in skills/baoyu-<name>/scripts/ (if applicable)
Add prompt templates in skills/baoyu-<name>/prompts/ if needed
Choose the appropriate category and register in marketplace.json:
- content-skills: For content generation/publishing (images, slides, posts)
- ai-generation-skills: For AI backend capabilities
- utility-skills: For helper tools (conversion, compression)
- If none fit, create a new category with descriptive name
Add Script Directory section to SKILL.md (see template below) if skill has scripts
Add openclaw metadata to SKILL.md frontmatter (required for ClawHub registry)

Choosing a Category

If your skill...	Use category
Generates visual content (images, slides, comics, infographics)	`content-skills`
Publishes to platforms (X, WeChat, Weibo, etc.)	`content-skills`
Provides AI generation backend (official API or reverse-engineered)	`ai-generation-skills`
Converts or processes content (URL→md, md→html, format)	`utility-skills`
Compresses or optimizes files	`utility-skills`
Translates documents	`utility-skills`

Creating a new category: If the skill doesn't fit existing categories, add a new plugin object to marketplace.json with:

name: Descriptive kebab-case name (e.g., analytics-skills)
description: Brief description of the category
skills: Array with the skill path

Writing Effective Descriptions

MUST write in third person (not "I can help you" or "You can use this"):

# Good
description: Generates Xiaohongshu infographic series from content. Use when user asks for "小红书图片", "XHS images", or "RedNote infographics".

# Bad
description: I can help you create Xiaohongshu images
description: You can use this to generate XHS content

Include both what the skill does and when to use it (triggers/keywords).

Script Directory Template

Every SKILL.md with scripts MUST include this section after Usage:

## Script Directory

**Important**: All scripts are located in the `scripts/` subdirectory of this skill.

**Agent Execution Instructions**:
1. Determine this SKILL.md file's directory path as `{baseDir}`
2. Script path = `{baseDir}/scripts/<script-name>.ts`
3. Resolve `${BUN_X}` runtime: if `bun` installed → `bun`; if `npx` available → `npx -y bun`; else suggest installing bun
4. Replace all `{baseDir}` and `${BUN_X}` in this document with actual values

**Script Reference**:
| Script | Purpose |
|--------|---------|
| `scripts/main.ts` | Main entry point |
| `scripts/other.ts` | Other functionality |

When referencing scripts in workflow sections, use ${BUN_X} {baseDir}/scripts/<name>.ts so agents can resolve the correct runtime and path.

Note: The path variable was renamed from SKILL_DIR / ${SKILL_DIR} to baseDir / {baseDir} (no ${} wrapper) in v1.57.0. All existing SKILL.md files use {baseDir}.

Progressive Disclosure

For skills with extensive content, use separate reference files:

skills/baoyu-example/
├── SKILL.md              # Main instructions (<500 lines)
├── references/
│   ├── styles.md         # Style definitions (loaded as needed)
│   └── examples.md       # Usage examples (loaded as needed)
└── scripts/
    └── main.ts           # Executable script

In SKILL.md, link to reference files (one level deep only):

**Available styles**: See [references/styles.md](references/styles.md)
**Examples**: See [references/examples.md](references/examples.md)

Code Style

TypeScript throughout, no comments
Async/await patterns
Short variable names
Type-safe interfaces

Image Generation Guidelines

Skills that require image generation MUST delegate to available image generation skills rather than implementing their own.

Image Generation Skill Selection

Default: Use skills/baoyu-image-gen/SKILL.md (unless user specifies otherwise).

Read skills/baoyu-image-gen/SKILL.md for parameters and capabilities
If user explicitly requests a different skill, check skills/ directory for alternatives
Only ask user to choose when they haven't specified and multiple viable options exist

Generation Flow Template

Use this template when implementing image generation in skills:

### Step N: Generate Images

**Skill Selection**:
1. Check available image generation skills (`baoyu-image-gen` default, or `baoyu-danger-gemini-web`)
2. Read selected skill's SKILL.md for parameter reference
3. If multiple skills available, ask user to choose

**Generation Flow**:
1. Call selected image generation skill with:
   - Prompt file path (or inline prompt)
   - Output image path
   - Any skill-specific parameters (refer to skill's SKILL.md)
2. Generate images sequentially by default (one at a time)
   - Use batch parallel mode only when user already has multiple prompts or explicitly wants parallel throughput
3. After each image, output progress: "Generated X/N"
4. On failure, auto-retry once before reporting error

Batch Parallel Generation (baoyu-image-gen only): supports concurrent workers with per-provider throttling. Configure via batch.max_workers and batch.provider_limits in EXTEND.md. Default: sequential.

Output Path Convention

Each session creates an independent directory. Even the same source file generates a new directory per session.

Output Directory:

<skill-suffix>/<topic-slug>/

<skill-suffix>: Skill name suffix (e.g., xhs-images, cover-image, slide-deck, comic)
<topic-slug>: Generated from content topic (2-4 words, kebab-case)
Example: xhs-images/ai-future-trends/

Slug Generation:

Extract main topic from content (2-4 words, kebab-case)
Example: "Introduction to Machine Learning" → intro-machine-learning

Conflict Resolution: If <skill-suffix>/<topic-slug>/ already exists:

Append timestamp: <topic-slug>-YYYYMMDD-HHMMSS
Example: ai-future exists → ai-future-20260118-143052

Source Files:

Copy all sources to <skill-suffix>/<topic-slug>/ with naming: source-{slug}.{ext}
Multiple sources supported: text, images, files from conversation
Examples:
- source-article.md (main text content)
- source-reference.png (image from conversation)
- source-data.csv (additional file)
Original source files remain unchanged

Image Naming Convention

Image filenames MUST include meaningful slugs for readability:

Format: NN-{type}-[slug].png

NN: Two-digit sequence number (01, 02, ...)
{type}: Image type (cover, content, page, slide, illustration, etc.)
[slug]: Descriptive kebab-case slug derived from content

Examples:

01-cover-ai-future.png
02-content-key-benefits.png
03-page-enigma-machine.png
04-slide-architecture-overview.png

Slug Rules:

Derived from image purpose or content (kebab-case)
Must be unique within the output directory
2-5 words, concise but descriptive
When content changes significantly, update slug accordingly

Best Practices

Always read the image generation skill's SKILL.md before calling
Pass parameters exactly as documented in the skill
Handle failures gracefully with retry logic
Provide clear progress feedback to user

Style Maintenance (baoyu-comic)

When adding, updating, or deleting styles for baoyu-comic, follow this workflow:

Adding a New Style

Create style definition: skills/baoyu-comic/references/styles/<style-name>.md
Update SKILL.md:
- Add style to --style options table
- Add auto-selection entry if applicable

Generate showcase image:

${BUN_X} skills/baoyu-danger-gemini-web/scripts/main.ts \
  --prompt "A single comic book page in <style-name> style showing [appropriate scene]. Features: [style characteristics from style definition]. 3:4 portrait aspect ratio comic page." \
  --image screenshots/comic-styles/<style-name>.png

Compress to WebP:

${BUN_X} skills/baoyu-compress-image/scripts/main.ts screenshots/comic-styles/<style-name>.png

Update both READMEs (README.md and README.zh.md):
- Add style to --style options
- Add row to style description table
- Add image to style preview grid

Updating an Existing Style

Update style definition: skills/baoyu-comic/references/styles/<style-name>.md
Regenerate showcase image (if visual characteristics changed):
- Follow steps 3-4 from "Adding a New Style"
Update READMEs if description changed

Deleting a Style

Delete style definition: skills/baoyu-comic/references/styles/<style-name>.md
Delete showcase image: screenshots/comic-styles/<style-name>.webp
Update SKILL.md:
- Remove from --style options
- Remove auto-selection entry
Update both READMEs:
- Remove from --style options
- Remove from style description table
- Remove from style preview grid

Style Preview Grid Format

READMEs use 3-column tables for style previews:

| | | |
|:---:|:---:|:---:|
| ![style1](./screenshots/comic-styles/style1.webp) | ![style2](./screenshots/comic-styles/style2.webp) | ![style3](./screenshots/comic-styles/style3.webp) |
| style1 | style2 | style3 |

Extension Support

Every SKILL.md MUST include two parts for extension support:

1. Load Preferences Section (in Step 1 or as "Preferences" section)

For skills with workflows, add as Step 1.1. For utility skills, add as "Preferences (EXTEND.md)" section before Usage:

**1.1 Load Preferences (EXTEND.md)**

Check EXTEND.md existence (priority order):

\`\`\`bash
# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/<skill-name>/EXTEND.md && echo "project"
test -f "${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/<skill-name>/EXTEND.md" && echo "xdg"
test -f "$HOME/.baoyu-skills/<skill-name>/EXTEND.md" && echo "user"
\`\`\`

\`\`\`powershell
# PowerShell (Windows)
if (Test-Path .baoyu-skills/<skill-name>/EXTEND.md) { "project" }
$xdg = if ($env:XDG_CONFIG_HOME) { $env:XDG_CONFIG_HOME } else { "$HOME/.config" }
if (Test-Path "$xdg/baoyu-skills/<skill-name>/EXTEND.md") { "xdg" }
if (Test-Path "$HOME/.baoyu-skills/<skill-name>/EXTEND.md") { "user" }
\`\`\`

┌────────────────────────────────────────────────────────┬──────────────────────────┐
│                          Path                          │         Location         │
├────────────────────────────────────────────────────────┼──────────────────────────┤
│ .baoyu-skills/<skill-name>/EXTEND.md                   │ Project directory        │
├────────────────────────────────────────────────────────┼──────────────────────────┤
│ $XDG_CONFIG_HOME/baoyu-skills/<skill-name>/EXTEND.md   │ XDG config (~/.config)   │
├────────────────────────────────────────────────────────┼──────────────────────────┤
│ $HOME/.baoyu-skills/<skill-name>/EXTEND.md             │ User home (legacy)       │
└────────────────────────────────────────────────────────┴──────────────────────────┘

┌───────────┬───────────────────────────────────────────────────────────────────────────┐
│  Result   │                                  Action                                   │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Found     │ Read, parse, display summary                                              │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Not found │ Ask user with AskUserQuestion (see references/config/first-time-setup.md) │
└───────────┴───────────────────────────────────────────────────────────────────────────┘

**EXTEND.md Supports**: [List supported configuration options for this skill]

Schema: `references/config/preferences-schema.md`

2. Extension Support Section (at the end)

Simplified section that references the preferences section:

## Extension Support

Custom configurations via EXTEND.md. See **Step 1.1** for paths and supported options.

Or for utility skills without workflow steps:

## Extension Support

Custom configurations via EXTEND.md. See **Preferences** section for paths and supported options.

Notes:

Replace <skill-name> with actual skill name (e.g., baoyu-cover-image)
Use $HOME instead of ~ for cross-platform compatibility (macOS/Linux/WSL/PowerShell)
$XDG_CONFIG_HOME defaults to ~/.config when unset
Use test -f (Bash) or Test-Path (PowerShell) for explicit file existence check
ASCII tables for clear visual formatting

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