prd-quality-guard

prd-quality-guard is a command for Claude Code from josemerca/mercadona-user-story-toolkit. It costs 15 tokens per session (353 once invoked), scanned A, original, MIT.

A command that reviews a product requirements document, or PRD—the written plan for what a product should do—before research begins. It checks the document against defined quality rules and returns a pass, conditional result, or fail decision.

In plain words
What is it for?
Use it to review a PRD from a file, public URL, or pasted text and decide whether it is ready for research.
Why use it?
It finds missing details, unclear goals, unsupported measures, and scope problems before they shape later work.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the mercadona-user-story-toolkit plugin — 8 skills, 11 commands shipped together

Good fit Use it to review a PRD from a file, public URL, or pasted text and decide whether it is ready for research.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard
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.

Clone the repo
git clone --depth 1 https://github.com/josemerca/mercadona-user-story-toolkit

Made for: Claude Code.

Or install mercadona-user-story-toolkit, the plugin that ships this one along with the rest of its 8 skills, 11 commands.

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 prd-quality-guard

README.md
[![agentmods](https://agentmods.dev/badge/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard/github.svg)](https://agentmods.dev/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard)
Your own site
<a href="https://agentmods.dev/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard"><img src="https://agentmods.dev/badge/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard/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 prd-quality-guard

Your own site · 80×15
<a href="https://agentmods.dev/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard"><img src="https://agentmods.dev/badge/commands/josemerca/mercadona-user-story-toolkit/prd-quality-guard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 353 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.
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 $0.00015 $0.00353
Opus 5 $0.00008 $0.00177
Sonnet 5 $0.00003 $0.00071
Haiku 4.5 $0.00002 $0.00035

Measured 12d ago against content hash a96a45e39ae0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

prd-quality-guard 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 12d 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.

commands/prd-quality-guard.md · 25 lines

What it actually says

Paso 0 (obligatorio): Cargar ground-rules. Antes de proceder, lee shared-config.md y aplica:

  • §Filosofía del Plugin — modo copiloto, NO inventar, preguntar antes de generar
  • §Estilo de Escritura — frases ≤30 palabras, sin adjetivos sin datos, NUNCA inventar métricas
  • §Antipatrones Compartidos — los 7 antipatrones a detectar

Si no puedes leer el fichero, detén la ejecución y reporta el problema.

Ejecuta /prd-quality-guard para evaluar la calidad de un PRD antes de pasar a research.

Input necesario: Ruta de fichero, URL del documento, o contenido pegado del PRD.

Proceso:

  1. Cargar PRD desde la fuente que indique el usuario (fichero local, URL pública, o contenido pegado)
  2. Leer el SKILL.md de skills/prd-quality-guard/
  3. Ejecutar análisis completo: Inventario → D1 (EAC), D2 (EFC+Métricas), D3 (Discovery+Scope) → Gate Decision
  4. Detectar antipatrones PRD-específicos (AP-PRD-1 a AP-PRD-5)
  5. Score ≥7 → PASS (proceder a research) | 5-6 → CONDICIONAL | <5 → FAIL

Siguiente paso: Si PASS → ejecutar /research con source_type=PRD

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. 12d ago First seen · 25 lines · 15 tokens per session scan A a96a45e39ae0

Subscribe to this mod's changes

prd-quality-guard is a command published in the GitHub repository josemerca/mercadona-user-story-toolkit (25 stars, last pushed 4mo ago), licensed MIT. It adds 15 tokens to every session and 353 once invoked, about $0.0001 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.