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Meta Agent

An AI that builds AI agents

2025activeai tooling

A meta-agent system that creates custom Mastra-based AI agents from natural language — researching best practices, interviewing for requirements, designing a plan and generating the implementation.

Meta Agent is an AI system that builds other AI agents. Given a goal in natural language, it researches best practices, interviews the user to pin down requirements, designs a structured plan in JSON, and then generates a working Mastra-based agent implementation. Built in TypeScript with Mastra, PostgreSQL and OpenAI models, it includes an agent mock system for fast, zero-cost testing without live API calls and is backed by a substantial suite of 308 tests. It is an exploration of meta-programming for agentic AI — compressing the repetitive scaffolding of agent creation into an automated, testable pipeline.

Highlights

  • Researches, interviews, designs and generates Mastra agents
  • Structured plan generation in JSON
  • Agent mock system for fast, zero-cost testing

Metrics

Tests
308

Stack

  • TypeScript
  • Mastra
  • PostgreSQL
  • OpenAI
Repository