Ralph (Ralph Wiggum loop) - AI Tool

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Ralph Wiggum Loop - PRD-Driven Autonomous AI Coding Workflow

Developer IDEs & Agents

About Ralph (Ralph Wiggum loop)

A terminal-first agent loop that repeatedly runs an AI coding agent until PRD items are done, persisting state via git and lightweight artifacts.

Key Capabilities

PRD-driven loop: keeps running until checklist items are completed

Fresh agent context each iteration (reduces drift across long runs)

Git-based memory + artifacts (e.g. progress + PRD state)

Terminal-first workflow for devs comfortable with git and diffs

Scriptable for unattended, long-running tasks

Extensible via Claude Code plugin implementations

Standout Features

Loop until done

Runs repeated agent iterations until PRD items are completed.

Git-based memory

Persists progress via git history plus lightweight artifacts for state.

PRD-first workflow

Keeps work anchored to a checklist so long runs stay structured.

Perfect for

Terminal power users
Turning a PRD into repeated execution cycles
Batch feature work
Builders who review diffs + tests
Ralph Wiggum Loop Review (2026): PRD-Driven Agent Loops for Terminal Devs
Related Guide11 min read

Ralph Wiggum Loop Review (2026): PRD-Driven Agent Loops for Terminal Devs

Hands-on style review of the Ralph Wiggum loop pattern: what it is, how it works, when it beats IDE agents, risks, and the best Ralph alternatives.

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Open Source (Free; usage costs depend on the underlying agent/model provider)

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