prd-review

prd-review is a skill for Codex from yihannangua/prd-review-skill. It costs 78 tokens per session (1,184 once invoked), scanned A, original, MIT.

A detailed review process for product requirements documents (PRDs), which describe what a product or business process should do. It examines rules, data, user roles, workflows, and missing details.

In plain words
What is it for?
Use it to review PRDs, feature proposals, process documents, and product specifications for correctness, completeness, and testability.
Why use it?
It helps find contradictions, unclear requirements, missing cases, and implementation risks before development begins.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to review PRDs, feature proposals, process documents, and product specifications for correctness, completeness, and testability.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yihannangua/prd-review-skill/prd-review
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 yihannangua/prd-review-skill --skill prd-review
Clone the repo
git clone --depth 1 https://github.com/yihannangua/prd-review-skill

Made for: 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 prd-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/yihannangua/prd-review-skill/prd-review/github.svg)](https://agentmods.dev/skills/yihannangua/prd-review-skill/prd-review)
Your own site
<a href="https://agentmods.dev/skills/yihannangua/prd-review-skill/prd-review"><img src="https://agentmods.dev/badge/skills/yihannangua/prd-review-skill/prd-review/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-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/yihannangua/prd-review-skill/prd-review"><img src="https://agentmods.dev/badge/skills/yihannangua/prd-review-skill/prd-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,184 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 $0.00078 $0.01184
Opus 5 $0.00039 $0.00592
Sonnet 5 $0.00016 $0.00237
Haiku 4.5 $0.00008 $0.00118

Measured 11d ago against content hash 92bebd6b4f19, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

prd-review 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 11d 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.

prd-review/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PRD Review

This skill performs a deep PRD and requirements quality audit. It is for understanding and challenging the business logic in a requirement document, not for checking whether a document follows a fixed template.

Core Intent

Review whether the requirement is correct, clear, consistent, complete, implementable, and testable.

Before criticizing, build a business understanding:

  • Business goal and system boundary
  • Actors, roles, and permissions
  • Business objects and data relationships
  • Module responsibilities and module boundaries
  • Core workflows and state transitions
  • Cross-module dependencies and side effects
  • Normal, exception, boundary, retry, rollback, and audit rules

Distinguish explicitly between:

  • Stated: directly present in the source document
  • Inferred: reasonable inference from the document
  • Missing: required for implementation or testing but absent
  • Question: must be confirmed by product/business owner

When To Use

Use this skill when the user asks to:

  • Deeply review a PRD or requirement document
  • Find business logic errors, omissions, contradictions, or ambiguity
  • Evaluate module relationships, internal rules, and cross-module flows
  • Check whether developers and testers can implement and verify the requirement
  • Produce detailed modification advice, not just a score

Do not use this as the primary skill when the user only wants grammar cleanup, document formatting, or a fixed delivery checklist review.

Required Workflow

  1. Ingest source material

    • Read the user-provided document(s), preserving section names and locations.
    • For DOCX/PDF inputs, extract text with the appropriate document tooling.
    • Note unreadable diagrams, external links, missing attachments, or image-only flowcharts.
  2. Load review framework

    • Read references/review-framework.md before the first substantive review.
    • Read references/issue-taxonomy.md before classifying findings.
    • Read references/report-template.md before writing the final report.
    • Read additional reference files only when needed:
      • references/module-review-template.md for per-module review.
      • references/cross-module-checklist.md for module interaction and consistency checks.
      • references/business-rule-checklist.md for rules, states, data, permission, and exception checks.
      • references/requirement-quality-checklist.md for clarity, consistency, priority, terminology, data definition, and ambiguity checks.

Read the full file on GitHub · 114 lines

Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 114 lines · 78 tokens per session scan A 92bebd6b4f19

Subscribe to this mod's changes

prd-review is a skill published in the GitHub repository yihannangua/prd-review-skill (5 stars, last pushed 3mo ago), licensed MIT. It adds 78 tokens to every session and 1,184 once invoked, about $0.0004 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 2026-08-31.

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