Terminal Agent

Smol Developer

An early open-source 'AI junior developer' CLI that scaffolds an entire small application from a single product spec file.

Pricing

Open source, free (bring your own API key)

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Smol Developer is one of the earliest open-source “AI junior developer” tools: point it at a plain-text spec describing what you want built, and it scaffolds a working small application from scratch.

Why it stands out

Spec-to-app in one shot. You write a single markdown prompt file describing the app, and it generates the initial codebase.
Simple, hackable codebase. Its own implementation is small and easy to read, making it a popular reference for understanding agentic code generation.
Community-driven origin, having helped popularize the “AI engineer” framing that shaped later agent tools.

Good for

Developers who want a minimal, transparent example of prompt-to-codebase generation, or a quick scaffold for a small new project.