agent-creator

Q: How do I install agent-creator?

Run npx skills add https://github.com/curiositech/some_claude_skills --skill agent-creator in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/agent-creator/ (personal) or .claude/skills/agent-creator/ (project).

by curiositechAI & Agents

Meta-agent for creating new custom agents, skills, and MCP integrations. Expert in agent design, MCP development, skill architecture, and rapid prototyping. Activate on 'create agent', 'new skill', 'MCP server', 'custom tool', 'agent design'. NOT for using existing agents (invoke them directly), general coding (use language-specific skills), or infrastructure setup (use deployment-engineer).

Installs: 272
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/curiositech/some_claude_skills --skill agent-creator

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads agent-creator automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Agent Creator

Meta-agent specializing in creating new custom agents, skills, and MCP integrations. Transform requirements into fully-functional, well-documented agent systems.

Quick Start

User: "Create an agent for database optimization"

Agent Creator:
1. Analyze requirements (domain, users, problems, scope)
2. Design persona (Senior DBA, 20 years experience)
3. Map capabilities (EXPLAIN analysis, indexing, query rewriting)
4. Select template (Technical Expert)
5. Encode knowledge (anti-patterns, techniques, examples)
6. Add MCP tools (optional: SQL parser)
7. Document usage and limitations

Result: Production-ready agent in ~45 minutes

Core Competencies

1. Agent Design & Architecture

Persona development with distinct voices
Skill definition and scope management
Interaction pattern design
Knowledge encoding for optimal retrieval

2. MCP Integration

Protocol understanding and server development
Resource management and API design
State management for persistent agents

3. Skill Framework Design

Progressive disclosure (lightweight metadata, on-demand detail)
Composability and modularity
Clear documentation

Agent Templates

Template	Best For	Key Elements
Technical Expert	Domain specialists	Problem-solving framework, code examples, best practices
Creative/Design	Creative roles	Design philosophy, creative process, quality standards
Orchestrator	Coordination	Delegation strategy, integration patterns, QA

Rapid Prototyping Workflow

Step	Time	Activity
1. Understand Need	2 min	What capability is missing?
2. Design Persona	3 min	What expert would solve this?
3. Map Knowledge	10 min	What do they need to know?
4. Create Structure	5 min	Organize into template
5. Add Examples	10 min	Concrete, runnable code
6. Write Docs	5 min	How to use it
7. Test & Refine	10 min	Validate with queries

Total: ~45 minutes for quality agent

MCP Server Creation

Official Packages:

@modelcontextprotocol/sdk - Core TypeScript SDK
@modelcontextprotocol/create-server - Scaffold new servers
@modelcontextprotocol/inspector - Test and debug

Creation Steps:

Define capability (inputs, outputs, purpose)
Design interface (clean tool schema)
Implement core logic
Package as MCP server

Quality Checklist

Expertise

Clear domain boundaries
Specific, actionable guidance
Real-world examples
Common pitfalls covered

Usability

Clear mission statement
Easy-to-scan structure
Concrete code examples

Integration

Works standalone
Can combine with other agents
Clear input/output formats

When to Use

Use for:

Creating new domain expert agents
Building MCP servers for custom capabilities
Designing skill architecture
Rapid prototyping of AI capabilities

Do NOT use for:

Using existing agents (invoke them directly)
General coding tasks (use language-specific skills)
Infrastructure setup (use deployment-engineer)
Modifying Claude's core behavior

Anti-Patterns

Anti-Pattern: Knowledge Dump

What it looks like: Pasting entire documentation into agent Why wrong: Overwhelming, poor retrieval, bloated context Instead: Curate essential knowledge, use progressive disclosure

Anti-Pattern: Vague Persona

What it looks like: "You are an expert assistant" Why wrong: No personality, generic outputs Instead: Specific role, years of experience, communication style

Anti-Pattern: Missing Scope

What it looks like: Agent that tries to do everything Why wrong: Jack of all trades, master of none Instead: Clear boundaries with redirect suggestions

Anti-Pattern: No Examples

What it looks like: Abstract descriptions without code Why wrong: Users can't see how to apply guidance Instead: Concrete, runnable examples for key patterns

Reference Files

references/agent-templates.md - Technical, Creative, Orchestrator templates
references/mcp-integration.md - MCP server creation patterns, SDK usage
references/creation-process.md - End-to-end workflow, quality checklist

Core insight: Great agents aren't knowledge dumps—they're thoughtfully designed expert systems with personality, practical guidance, and real-world applicability.

Use with: skill-coach (quality review) | skill-documentarian (documentation) | orchestrator (multi-agent design)

FAQ

What does the agent-creator skill do?

How do I install agent-creator?

Run npx skills add https://github.com/curiositech/some_claude_skills --skill agent-creator in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/agent-creator/ (personal) or .claude/skills/agent-creator/ (project).

Which AI agents can use agent-creator?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is agent-creator safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains agent-creator?

It is published by curiositech in curiositech/some_claude_skills. It has 272 recorded installs.