ralph-tui-prd

ralph-tui-prd is a skill for Claude Code, Codex from subsy/ralph-tui. It costs 70 tokens per session (2,363 once invoked), scanned A, original, MIT.

A requirements-document generator for Ralph TUI, a tool that runs planned coding tasks through an AI agent. It asks clarifying questions and produces a structured feature plan.

In plain words
What is it for?
Use it to define features, write user stories, set quality gates, and prepare work for conversion into beads issues or a prd.json file for automated execution.
Why use it?
It helps turn an incomplete feature idea into clear, testable requirements before implementation begins. This reduces uncertainty about scope, success criteria, integration, and required checks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: names the AskUserQuestion tool; mentions Claude Code.

Good fit Use it to define features, write user stories, set quality gates, and prepare work for conversion into beads issues or a prd.json file for automated execution.

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Install with agentmods
npx agentmods add skills/subsy/ralph-tui/ralph-tui-prd
About the project

Ralph TUI is a terminal interface that repeatedly sends tasks from a task tracker to AI coding agents, monitors their work, and moves through the list autonomously. Developers use it to run agents such as Claude Code, Codex, Cursor CLI, or Gemini CLI across ordered tasks, with persistence and progress visibility; catalogue entries add skills and instructions for that workflow.

subsy/ralph-tui · 2,437 stars · on GitHub · ralph-tui.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add subsy/ralph-tui --skill ralph-tui-prd
Clone the repo
git clone --depth 1 https://github.com/subsy/ralph-tui

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ralph-tui-prd

README.md
[![agentmods](https://agentmods.dev/badge/skills/subsy/ralph-tui/ralph-tui-prd/github.svg)](https://agentmods.dev/skills/subsy/ralph-tui/ralph-tui-prd)
Your own site
<a href="https://agentmods.dev/skills/subsy/ralph-tui/ralph-tui-prd"><img src="https://agentmods.dev/badge/skills/subsy/ralph-tui/ralph-tui-prd/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ralph-tui-prd

Your own site · 80×15
<a href="https://agentmods.dev/skills/subsy/ralph-tui/ralph-tui-prd"><img src="https://agentmods.dev/badge/skills/subsy/ralph-tui/ralph-tui-prd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,363 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk pass 17 Feb 2026
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00070 $0.02363
Opus 5 $0.00035 $0.01182
Sonnet 5 $0.00014 $0.00473
Haiku 4.5 $0.00007 $0.00236

Measured 5d ago against content hash 8127004f3332, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ralph-tui-prd scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/ralph-tui-prd/SKILL.md · 330 lines

How it starts

The opening of the file, as written. The whole thing — 330 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Ralph TUI PRD Generator

Create detailed Product Requirements Documents optimized for AI agent execution via ralph-tui.


The Job

  1. Receive a feature description from the user
  2. Ask 3-5 essential clarifying questions (with lettered options) - one set at a time
  3. Always ask about quality gates (what commands must pass)
  4. After each answer, ask follow-up questions if needed (adaptive exploration)
  5. Generate a structured PRD when you have enough context
  6. Output the PRD wrapped in [PRD]...[/PRD] markers for TUI parsing

Important: Do NOT start implementing. Just create the PRD.


Step 1: Clarifying Questions (Iterative)

Ask questions one set at a time. Each answer should inform your next questions. Focus on:

  • Problem/Goal: What problem does this solve?
  • Core Functionality: What are the key actions?
  • Scope/Boundaries: What should it NOT do?
  • Success Criteria: How do we know it's done?
  • Integration: How does it fit with existing features?
  • Quality Gates: What commands must pass for each story? (REQUIRED)

Format Questions Like This:

1. What is the primary goal of this feature?
   A. Improve user onboarding experience
   B. Increase user retention
   C. Reduce support burden
   D. Other: [please specify]

2. Who is the target user?
   A. New users only
   B. Existing users only
   C. All users
   D. Admin users only

This lets users respond with "1A, 2C" for quick iteration.

If you are Claude Code in an interactive session, you may present these questions with the AskUserQuestion tool instead - same questions and options, still one set at a time. When this skill is driven by ralph-tui create-prd, the agent runs non-interactively and nothing can answer a tool call, so ask in plain text with lettered options as above.

Quality Gates Question (REQUIRED)

Always ask about quality gates - these are project-specific:

What quality commands must pass for each user story?
   A. pnpm typecheck && pnpm lint
   B. npm run typecheck && npm run lint
   C. bun run typecheck && bun run lint
   D. Other: [specify your commands]

For UI stories, should we include browser verification?
   A. Yes, use dev-browser skill to verify visually
   B. No, automated tests are sufficient

Read the full file on GitHub · 330 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago Changed · +2 lines 8127004f3332
  2. 9d ago First seen · 328 lines · 70 tokens per session scan A 9534f7cdf173

Subscribe to this mod's changes

ralph-tui-prd is a skill published in the GitHub repository subsy/ralph-tui (2,437 stars, last pushed 4d ago), licensed MIT. It adds 70 tokens to every session and 2,363 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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