prd-auditor

prd-auditor is an agent for Claude Code from closedloop-ai/claude-plugins. It costs 12 tokens per session (4,066 once invoked), scanned A, original, Apache-2.0.

A structural review tool for draft PRDs, or product requirements documents. It checks whether requirements, acceptance criteria, metrics, scope, open questions, and stopping conditions are properly covered.

In plain words
What is it for?
Use it to audit user stories, measurable success targets, scope boundaries, unresolved questions, kill criteria, and required PRD template sections.
Why use it?
It helps catch missing or incomplete sections before a team starts planning or building. This reduces ambiguity about what success means and what is included.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the judges plugin — 3 skills, 22 agents shipped together

Good fit Use it to audit user stories, measurable success targets, scope boundaries, unresolved questions, kill criteria, and required PRD template sections.

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Install with agentmods
npx agentmods add agents/closedloop-ai/claude-plugins/prd-auditor
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/closedloop-ai/claude-plugins

Made for: Claude Code.

Or install judges, the plugin that ships this one along with the rest of its 3 skills, 22 agents.

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-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/prd-auditor.svg)](https://agentmods.dev/agents/closedloop-ai/claude-plugins/prd-auditor)
Your own site
<a href="https://agentmods.dev/agents/closedloop-ai/claude-plugins/prd-auditor"><img src="https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/prd-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,066 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 $0.00012 $0.04066
Opus 5 $0.00006 $0.02033
Sonnet 5 $0.00002 $0.00813
Haiku 4.5 $0.00001 $0.00407

Measured today against content hash 4052445e6729, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

prd-auditor 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 today.

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.

plugins/judges/agents/prd-auditor.md · 335 lines

How it starts

The opening of the file, as written. The whole thing — 335 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PRD Auditor

  • Verifying that every user story has fully-defined acceptance criteria
  • Ensuring success metrics are quantifiable with baselines and targets
  • Identifying unresolved critical open questions that block delivery
  • Confirming scope boundaries are explicitly defined
  • Checking that kill criteria are present to protect against runaway investment
  • Cross-referencing PRD sections against the canonical prd-template.md to catch omitted sections

Your task is to audit a draft PRD for structural completeness and produce a CaseScore JSON object.

<analysis_instructions> You MUST perform your analysis in a structured, step-by-step manner. Wrap all analytical thinking in <thinking> tags before producing your final output.

Read $CLOSEDLOOP_WORKDIR/judge-input.json first. Parse source_of_truth, then read the mapped primary_artifact and supporting_artifacts in that exact ID order. Treat the primary artifact as the PRD to audit and supporting descriptors as source-of-truth requirement evidence. Use legacy $CLOSEDLOOP_WORKDIR/prd.md only when judge-input.json is absent or invalid and the run explicitly indicates a one-run legacy fallback. If neither the mapped PRD nor an explicit legacy fallback is readable, return final_status=3.

Check 1: User Story AC Coverage

  1. Scan the PRD for all user story identifiers matching the pattern US-\d+ (e.g., US-1, US-12).
  2. For each US-\d+ found, verify that at least one acceptance criterion identifier matching AC-\d+\.\d+ (e.g., AC-1.1, AC-12.3) is associated with it. Association means either:
    • The AC identifier appears in the same section/subsection as the US identifier, OR
    • The AC identifier's numeric prefix matches the US number (e.g., AC-3.1 covers US-3).
  3. Flag any user story with NO associated AC identifiers as a blocking finding.

Read the full file on GitHub · 335 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. today First seen · 335 lines · 12 tokens per session scan A 4052445e6729

Subscribe to this mod's changes

prd-auditor is an agent published in the GitHub repository closedloop-ai/claude-plugins (103 stars, last pushed yesterday), licensed Apache-2.0. It adds 12 tokens to every session and 4,066 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 2026-09-07.

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