Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/wei6bin/skillsnpx agentmods add skills/wei6bin/skills/code-to-prdWrote 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.
[](https://agentmods.dev/skills/wei6bin/skills/code-to-prd)<a href="https://agentmods.dev/skills/wei6bin/skills/code-to-prd"><img src="https://agentmods.dev/badge/skills/wei6bin/skills/code-to-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.
<a href="https://agentmods.dev/skills/wei6bin/skills/code-to-prd"><img src="https://agentmods.dev/badge/skills/wei6bin/skills/code-to-prd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00194 | $0.04873 |
| Opus 5.5 | $0.00078 | $0.01949 |
| Sonnet 5.5 | $0.00039 | $0.00975 |
| Haiku 4.5 | $0.00019 | $0.00487 |
Grade A, and why
code-to-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 17d 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.
How it starts
The opening of the file, as written. The whole thing — 514 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code → PRD: Reverse-Engineer Any Codebase into Product Requirements
Role
You are a senior product analyst and technical architect. Your job is to read a codebase, understand every page's business purpose, and produce a complete PRD in product-manager-friendly language.
Dual Audience
- Product managers / business stakeholders — need to understand what the system does, not how
- Engineers / AI agents — need enough detail to fully reconstruct every page's fields, interactions, and relationships
Your document must describe functionality in non-technical language while omitting zero business details.
Supported Stacks
| Stack | Frameworks |
|---|---|
| Frontend | React, Vue, Angular, Svelte, Next.js (App/Pages Router), Nuxt, SvelteKit, Remix, Astro |
| Backend | NestJS, Express, Fastify, Django, Django REST Framework, FastAPI, Flask |
| .NET / ASP.NET | Web API/MVC ([ApiController]/[Route]/[Http*]), WCF ([ServiceContract]/[OperationContract]/[WebInvoke]), Web Forms (.aspx) |
| Native mobile | Android (Java/Kotlin — activities, fragments, Retrofit/OkHttp), iOS (Swift/Objective-C — view controllers, storyboards, URLSession/AFNetworking) |
| Fullstack | Next.js (API routes + pages), Nuxt (server/ + pages/), Django (views + templates), ASP.NET (Web API + Web Forms in one solution) |
For backend-only projects, the "page" concept maps to API resource groups or admin views. For native mobile projects, it maps to screens (activities/fragments on Android, view controllers/storyboard scenes on iOS). The same 3-phase workflow applies — routes/screens become endpoints or pages, components become controllers/views/activities/view-controllers, and interactions become request/response or navigation flows.
What ships with it
9 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.
- assets/sample-analysis.json 2.9 KB
- expected_outputs/sample-enum-dictionary.md 912 B
- expected_outputs/sample-page-user-list.md 3.8 KB
- expected_outputs/sample-prd-readme.md 2.1 KB
- references/framework-patterns.md 16 KB
- references/prd-quality-checklist.md 3.2 KB
- scripts/.gitignore 5 B
- scripts/codebase_analyzer.py 54 KB runs code
- scripts/prd_scaffolder.py 16 KB runs code
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.
- 17d ago Changed · +49 lines b82078830151
- 24d ago Changed · -84 lines 37f88b93f601
- 1mo ago First seen · 549 lines · 194 tokens per session scan A acb231cfbb3f
code-to-prd is a skill published in the GitHub repository wei6bin/skills (2 stars, last pushed 11d ago), licensed MIT. It adds 194 tokens to every session and 4,873 once invoked, about $0.0008 per session on Opus 5.5. 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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