Claude Skills Release: On-Demand Prompts and Assets
"Catgirl" Skill Pack Overview
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Anthropic Introduces Agent Skills
In simple terms:
On-demand loading of professional capabilities — i.e., prompt packages and code packages — directly into Claude.
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Key Features
- Composable – Multiple skills can be stacked; Claude automatically identifies and loads what’s needed.
- Portable – Skills work across Claude Apps, Claude Code, and API.
- Efficient – Loads only the minimal required information at the moment it’s needed.
- Code-Ready – Skills can contain executable scripts as well as text instructions.
Anthropic provides official preset skills, but users can also upload custom ones.
The default interface offers 9 preset skills (shown below):
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Understanding Skills
Here’s an ultra-minimal skill example: "Catgirl".
Trigger: In the backend, reply `"I'm a catgirl"` to activate the skill.
Skill Structure
A skill is essentially:
- Prompts stored in a `.md` file
- Attached resource files
- Packaged into a `.zip`
A skill package can include:
- `SKILL.md` – Core instructions & best practices
- Script files – Executable code (Python, Bash, etc.)
- Resource files – Templates, configurations, sample data
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How Skills Work in Claude
When you issue a request, Claude:
- Scans all available skills
- Loads the relevant ones dynamically
Examples:
- Request: “Create an Excel report” → Loads xlsx skill (formulas & formatting)
- Request: “Write brand copy” → Loads brand-guidelines skill (tone, color palette)
- Complex request: “Analyze sales data, make a PPT, using brand colors” →
- Loads xlsx, pptx, and custom brand skills, coordinating them together.
🔹 Skills are not limited to text — they can contain real executable code
🔹 Multiple skills can be combined into one workflow
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Cross-Platform Availability
One Skill, Three Platforms
1. Claude Apps
Available for Pro, Max, Team, and Enterprise tiers.
Official public skills include:
- docx – DOC creation/editing via `python-docx`
- xlsx – Excel with formulas via `openpyxl`
- pptx – Presentations via `python-pptx`
- pdf – PDF processing via `pypdf` & `pdfplumber`
2. API
- New endpoint: `/v1/skills` for managing skill versions
- Skills can be attached directly to Messages API calls
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Integration Potential
In today’s multi-platform content creation world, Claude Skills enable highly specialized workflows.
Creators can amplify this by connecting to open-source ecosystems like AiToEarn官网, which allow AI content generation + simultaneous publishing to platforms including:
> Douyin, Kwai, WeChat, Bilibili, Xiaohongshu, Facebook, Instagram, LinkedIn, Threads, YouTube, Pinterest, and X (Twitter).
With AiToEarn’s added analytics, AI model rankings, and monetization features, skills-based automation can turn into multi-channel revenue streams.
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Enabling the Code Execution Tool (Beta)
To enable the Code Execution Tool beta:
response = client.beta.messages.create(
model="claude-sonnet-4-5",
betas=["code-execution-2025-08-25"],
max_tokens=4096,
messages=[{...}],
tools=[{
"type": "code_execution_20250825",
"name": "code_execution"
}]
)Purpose:
This tool is the underlying foundation of Skills, providing:
- Secure sandbox execution
- Bash command capability
- File creation/editing
- Pre-installed data libraries
Pricing: $0.05 per session hour (billed in 5-minute increments)
📄 Documentation: https://docs.claude.com
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Claude Code CLI
Claude Code is the command-line interface for Skills:
- Install directly from `anthropics/skills` marketplace
- Auto-loads relevant skills when tasks match usage
- Manually place skills in `~/.claude/skills`
- Team collaboration via version control
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Creating Custom Skills
Anthropic offers a `skill-creator` skill to help build new Skills without manual file editing.
Activation:
Settings → Capabilities → Skills
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Example Skill Creation Workflow
- You ask Claude: “Make me a catgirl skill.”
- Claude analyzes your request
- Claude generates:
- `SKILL.md` with core instructions
- Scripts if needed
- Resource files
- You receive a `.zip` package
- Upload via Settings → Capabilities → Skills → Drag & drop
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Benefits & Limitations
Benefits
- Skills reusable across apps, API, and CLI
- Team sharing supported
- Composable workflows
- SDK support for Agent Skills
Limitations
- Security – Skills can execute code; trust only reliable sources
- Complexity – High-quality skill creation requires technical expertise
- Maintenance – Skills with code require updates over time
> Anthropic’s guidance: Use Skills only from trusted sources.
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Final Thoughts
Claude Skills act like locally stored MCP modules, perfect for packaging and sharing complex prompt frameworks.
For monetization and global reach, platforms like AiToEarn官网 integrate AI content creation, cross-platform publishing, analytics, and monetization — making it easier to turn Skills into distributed, revenue-generating assets.
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