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/bestdeejay-design/agent-skillsnpx agentmods add skills/bestdeejay-design/agent-skills/prd-to-appWrote 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/bestdeejay-design/agent-skills/prd-to-app)<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.
<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>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 | $0.00166 | $0.01950 |
| Opus 5 | $0.00083 | $0.00975 |
| Sonnet 5 | $0.00033 | $0.00390 |
| Haiku 4.5 | $0.00017 | $0.00195 |
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 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:
-
Read the image using the
look_attool (orReadtool for images) — examine it directly. Extract: page identity, layout structure, component inventory, content inventory, color extraction (hex values), typography, interactive states, data patterns. -
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
-
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.
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.
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.
- 7d ago First seen · 238 lines · 166 tokens per session scan A 3d23778d0deb
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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