Agent skill

Agent Generator

by majiayu000 in majiayu000/claude-skill-registry

Generate AGENT.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions.

MITAuto-check passedAI & LLM Engineering

Install Agent Generator

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .claude/skills/agent-generator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .claude/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .agents/skills/agent-generator && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .agents/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .cursor/skills/agent-generator && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .cursor/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/majiayu000/claude-skill-registry.git --path skills/agent/agent-generator-a5c-ai-babysitter

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .gemini/skills/agent-generator && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .gemini/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .github/skills/agent-generator && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .github/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill agent-generator -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry agent-generator --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/agent/agent-generator-a5c-ai-babysitter .opencode/skills/agent-generator && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "agent-generator" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/agent-generator-a5c-ai-babysitter into .opencode/skills/agent-generator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-generator", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: agent-generator
GitHub stars: 666
Used in: 1 other repo
Token cost: ~1k tokens
SKILL.md length: 203 words
Files: 2
Skills in repo: 1,273
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Generate AGENT.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions.

Works in 4 steps: Frontmatter Generation → Prompt Template Creation → Capability Definition → …
Tasks that involve Prompt engineering
SKILL.md covers Overview, AGENT.md Structure, Capabilities and Output Format, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Agent Generator is an agent skill from majiayu000/claude-skill-registry. Generate AGENT.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in AI & LLM Engineering, covering Prompt engineering. The repository describes itself as: Searchable Claude Code skills catalog with source-linked guides and generated registry artifacts. The licence is MIT.

When your agent uses it

Tasks that involve Prompt engineering

Example prompts

“/agent-generator”

Requirements

Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Frontmatter Generation
Prompt Template Creation
Capability Definition
Interaction Pattern Documentation

What it can do on your machine

Read from SKILL.md and the folder at commit 2d14a69. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Write
- Edit
- Glob
- Grep
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are yaml, markdown, javascript and json).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Agent Generator loads about 1k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 203 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~41
When it runs · the whole SKILL.md, loaded when a task matches: ~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from majiayu000/claude-skill-registry at commit 2d14a69, republished under its MIT licence (© majiayu000). 203 words, ~1,007 tokens.

Download SKILL.mdSave it as .claude/skills/agent-generator/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: agent-generator
description: Generate AGENT.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions.
allowed-tools: Read, Write, Edit, Glob, Grep
metadata.author: babysitter-sdk
metadata.version: 1.0.0
metadata.category: generation
metadata.backlog-id: SK-META-008

agent-generator

You are agent-generator - a specialized skill for generating Claude Code agent files (AGENT.md) with proper structure, frontmatter, and prompt templates.

Overview

This skill generates complete AGENT.md files including:

YAML frontmatter with role and expertise
Agent overview and capabilities
Prompt templates
Target processes
Interaction patterns

AGENT.md Structure

Required Frontmatter

yaml

---
name: agent-name
description: Comprehensive agent description
role: Role Category
expertise:
  - Expertise area 1
  - Expertise area 2
  - Expertise area 3
---

Required Sections

Title: # Agent Name Agent
Overview: What the agent does
Capabilities: Bullet list of capabilities
Target Processes: Which processes use this agent
Prompt Template: JavaScript prompt object
Interaction Patterns: How the agent collaborates

Capabilities

1. Frontmatter Generation

Generate valid YAML frontmatter:

yaml

---
name: data-analyst
description: Expert in data analysis, visualization, and statistical methods
role: Analysis
expertise:
  - Statistical analysis
  - Data visualization
  - Pattern recognition
  - Trend analysis
  - Report generation
---

2. Prompt Template Creation

Create effective prompt templates:

javascript

{
  role: 'Senior Data Analyst',
  expertise: [
    'Statistical analysis',
    'Data visualization',
    'Pattern recognition'
  ],
  task: 'Analyze the provided dataset',
  guidelines: [
    'Identify key patterns and trends',
    'Apply appropriate statistical methods',
    'Create clear visualizations',
    'Provide actionable insights',
    'Document methodology used'
  ],
  outputFormat: 'JSON with analysis, findings, and recommendations'
}

3. Capability Definition

Define clear capabilities:

markdown

## Capabilities

- Analyze datasets of various sizes and formats
- Apply statistical methods (regression, clustering, etc.)
- Create visualizations (charts, graphs, dashboards)
- Identify patterns and anomalies
- Generate actionable recommendations
- Document analysis methodology

4. Interaction Pattern Documentation

Document collaboration patterns:

markdown

## Interaction Patterns

- Collaborates with Data Engineer for data preparation
- Works with Visualization Designer for chart creation
- Coordinates with Domain Expert for context
- Reports to Quality Assessor for validation

Output Format

json

{
  "agentPath": "path/to/agent-name/AGENT.md",
  "frontmatter": {
    "name": "agent-name",
    "description": "...",
    "role": "Category",
    "expertise": ["area1", "area2"]
  },
  "promptTemplate": {
    "role": "...",
    "expertise": [],
    "task": "...",
    "guidelines": [],
    "outputFormat": "..."
  },
  "artifacts": [
    {
      "path": "path/to/agent-name/AGENT.md",
      "type": "markdown",
      "label": "Agent definition"
    }
  ]
}

Process Integration

This skill integrates with:

agent-creation.js - Primary agent generation
phase6-create-skills-agents.js - Batch agent creation
specialization-creation.js - Full specialization workflow

Best Practices

Clear Role: Define a specific, focused role
Relevant Expertise: List 5-10 expertise areas
Practical Prompts: Create actionable prompt templates
Process Linkage: Document target processes
Collaboration: Define interaction patterns

Constraints

name must be kebab-case
role must be a category (e.g., Analysis, Design, Documentation)
expertise should be 5-10 specific areas
Include target processes section
Provide at least one prompt template

Files

SKILL.md and 1 other file in skills/agent/agent-generator-a5c-ai-babysitter of majiayu000/claude-skill-registry.

SKILL.md
metadata.json

Open the folder on GitHubat commit 2d14a69

Used in 1 other repository

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in majiayu000/claude-skill-registry, which our catalogue first saw on October 7, 2026.

a5c-ai/babysitterlibrary/specializations/meta/skills/agent-generator

Compare with similar skills

Agent Generator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Agent Generator compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Agent Generator this skillmajiayu000/claude-skill-registry	666	1 repos	~1k	Automated safety check: Pass	MIT	yesterday
Prompt Improverseverity1/claude-code-prompt-improver	1.9k	2 repos	~1.7k	Automated safety check: Pass	MIT	7 days ago
Prompt Engineering Patternsynulihao/AgentSkillOS	617	15 repos	~1.7k	Automated safety check: Pass	None	7 mo ago
Patch CreationPiebald-AI/tweakcc	2.5k	—	~1.6k	Automated safety check: Pass	MIT	2 days ago
LLM Application DevMoizIbnYousaf/ai-agent-skills	1.1k	2 repos	~1.3k	Automated safety check: Pass	MIT	17 days ago
Senior Prompt Engineermaslennikov-ig/claude-code-orchestrator-kit	260	4 repos	~1.4k	Automated safety check: Pass	Custom licence	7 mo ago

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Questions about Agent Generator

What does Agent Generator do?

Generate AGENT.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions. Agent Generator is an agent skill from majiayu000/claude-skill-registry.md files with proper YAML frontmatter, role definitions, expertise areas, and prompt templates following Babysitter SDK conventions.

When should I use Agent Generator?

Agent Generator fits situations like: tasks that involve Prompt engineering.

How do I install Agent Generator in Claude Code?

Run `npx skills add majiayu000/claude-skill-registry --skill agent-generator -a claude-code`. Or copy the skill folder (skills/agent/agent-generator-a5c-ai-babysitter in majiayu000/claude-skill-registry) into .claude/skills/agent-generator in your project. Claude Code loads it when a task matches its description.

How do I install Agent Generator in Codex?

Run `npx skills add majiayu000/claude-skill-registry --skill agent-generator -a codex`. Or copy the skill folder (skills/agent/agent-generator-a5c-ai-babysitter in majiayu000/claude-skill-registry) into .agents/skills/agent-generator in your project. Codex loads it when a task matches its description.

Can I use Agent Generator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add majiayu000/claude-skill-registry --skill agent-generator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agent-generator, .gemini/skills/agent-generator, .github/skills/agent-generator and .opencode/skills/agent-generator in your project.

What does Agent Generator need to run?

SKILL.md names no scripts, command-line tools or credentials: Agent Generator is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep.

Does Agent Generator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Agent Generator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Agent Generator use?

Agent Generator is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Agent Generator use?

About 1k tokens (SKILL.md is roughly 4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Agent Generator?

Skills that share tags, products or a category with Agent Generator: Prompt Improver (severity1/claude-code-prompt-improver, 1.9k stars), Prompt Engineering Patterns (ynulihao/AgentSkillOS, 617 stars), Patch Creation (Piebald-AI/tweakcc, 2.5k stars) and LLM Application Dev (MoizIbnYousaf/ai-agent-skills, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agent Generator?

majiayu000 (a GitHub user) maintains it in majiayu000/claude-skill-registry, which has 666 GitHub stars. The repository holds 1,273 skills in this directory. The repository was last updated on October 7, 2026.

Source: majiayu000/claude-skill-registry on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Agent Generator

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

agent-generator

Overview

AGENT.md Structure

Required Frontmatter

Required Sections

Capabilities

1. Frontmatter Generation

2. Prompt Template Creation

3. Capability Definition

4. Interaction Pattern Documentation

Output Format

Process Integration

Best Practices

Constraints

Files

Used in 1 other repository

Compare with similar skills

Similar skills

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Related

Questions about Agent Generator