prd-to-app

prd-to-app is a skill for Claude Code from bestdeejay-design/agent-skills. It costs 166 tokens per session (1,950 once invoked), scanned A, original, MIT.

A workflow for turning product requirement documents, prototype images, and resource files into a complete web application. It covers the database, server API, user interface, visual checks, and deployment scripts.

In plain words
What is it for?
Use it to build a reproducible full-stack web app from a PRD and prototypes, including seeded data, backend endpoints, frontend screens, and deployment setup.
Why use it?
It removes the need to coordinate each part of an application build manually from a written specification and visual examples.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./prototypes/*.jpg|*.png ← UI prototype images (the visual truth).

Good fit Use it to build a reproducible full-stack web app from a PRD and prototypes, including seeded data, backend endpoints, frontend screens, and deployment setup.

Compare 6 skills from other repositories ↓
Install

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.

Clone the repo
git clone --depth 1 https://github.com/bestdeejay-design/agent-skills
agentmods
npx agentmods add skills/bestdeejay-design/agent-skills/prd-to-app

Made for: Claude Code.

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-to-app

README.md
[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/prd-to-app/github.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/prd-to-app)
Your own site
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/prd-to-app"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/prd-to-app/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-to-app

Your own site · 80×15
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/prd-to-app"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/prd-to-app.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 166 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,950 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00166 $0.01950
Opus 5 $0.00083 $0.00975
Sonnet 5 $0.00033 $0.00390
Haiku 4.5 $0.00017 $0.00195

Measured 7d ago against content hash 3d23778d0deb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

prd-to-app scanned grade A with 1 finding 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

### 3b. API endpoints — route handlers, validation, error handling, curl-tested
skills/prd-to-app/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PRD-to-App: Full-Stack Application Builder

Language: Respond in the same language the user uses. Code comments should match.

Build a complete, deployed web application from PRD + prototypes + resources. The result must be fully reproducible via a single bash start.sh.

Origin: Adapted from zai-org/GLM-skills/glmv-prd-to-app (Apache 2.0). ZHIPU API dependencies removed; replaced with Playwright + look_at for prototype analysis.


Phase 0: Material Discovery & Analysis

Before anything else, understand what you're working with.

0a. Locate all inputs

./prd.md                    ← Product requirement document
./prototypes/*.jpg|*.png    ← UI prototype images (the visual truth)
./resources/**/*            ← Images, videos, icons, and other assets

If the materials are in a different location, adapt accordingly. Read the PRD fully.

0b. Deep prototype analysis

For every prototype image:

  1. Read the image using the look_at tool (or Read tool for images) — examine it directly. Extract: page identity, layout structure, component inventory, content inventory, color extraction (hex values), typography, interactive states, data patterns.

  2. For each image, document:

    • Page identity: which page/view this represents
    • Layout structure: header, sidebar, main content, footer, modals
    • Component inventory: every button, form, card, table, list, nav element
    • Content inventory: all visible text, numbers, labels, placeholder content
    • Color extraction: primary, secondary, accent, background, text colors (hex values)
    • Typography: font sizes, weights, hierarchy observed
    • Interactive states: hover effects, active tabs, selected items, toggles
    • Data patterns: what data populates lists/tables/cards — this drives seed data
  3. Build a page map showing navigation flow between prototype pages.

0c. Resource inventory

List all files in ./resources/ and map each to where it appears in the prototypes. Every resource file must be used in the final application where relevant.

Read the full file on GitHub · 238 lines

Files

What ships with it

1 file 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. 7d ago First seen · 238 lines · 166 tokens per session scan A 3d23778d0deb

Subscribe to this mod's changes

prd-to-app is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 166 tokens to every session and 1,950 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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