Breaking

Smart Ralph brings spec-driven development plugin to Claude Code and Codex

July 1, 2026 at 01:39 EDT

Software Dev & Coding
AI Agents
Open Source

Smart Ralph (ralph-specum), a spec-driven development (SDD) plugin that turns vague feature ideas into structured specifications and implements them task by task on Claude Code and Codex, has been released on GitHub. It aims to semi-automate a workflow in which developers spell out and approve requirements, design and tasks before writing code inside AI coding assistants.

Open Source · MIT License · tzachbon

smart-ralph: Turning Vague Ideas Into Spec-Driven Code

A free plugin for Claude Code and OpenAI Codex that fuses the self-driving "Ralph loop" with a structured spec workflow — running each task in fresh context to curb drift over long AI sessions.

phases from idea to implementation

implementation stages per task

~349

GitHub stars for a fresh release

MIT-licensed, no external deps

The Spec-Driven Flow

Research

→

Requirements

→

Design

→

Tasks

→

Implement

Each task runs through 4 stages in fresh context:

Make It Work

→

Refactoring

→

Testing

→

Quality Gates

Why it exists

Specs first, not "vibe coding" — building out requirements before code keeps AI output consistent and prevents drift over long sessions.

Ralph loop

self-driving agentic loop drives execution

Task-level context

fresh context per task limits error buildup

Approval gates

plus triage & codebase indexing (v2.12.0+)

What developers value

More consistent AI output via upfront specs
Prevents drift across long sessions
Slots easily into existing tools as a plugin
Handles large features via triage & legacy code

Open questions

Initial plan direction heavily shapes results
Not always 100% accurate
Claude Code's native features may suffice
No benchmarks or performance figures yet

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