io.github.MohamedAbdallah-14/prompt-to-asset MCP Server

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<a id="top"></a>

<img src="./.github/assets/hero.gif" alt="prompt-to-asset demo — one prompt becomes a full favicon bundle in 20 seconds. Works with Claude Code, Cursor, Windsurf, VS Code. Zero API key required." width="100%" /> <h1>prompt&#8209;to&#8209;asset</h1> <p><b>Free image generation for developers, from the CLI or your AI assistant.</b><br/> Turn one brief into app icons, favicons, OG images, logos, splash screens, SVG, and platform bundles using the best zero-cost routes first.<br/> <b>Built for Cloudflare Workers AI, NVIDIA NIM, HF Inference, Stable Horde, Pollinations, free trials, and offline SVG.</b></p> <p> <a href="https://www.npmjs.com/package/prompt-to-asset"><img alt="npm" src="https://img.shields.io/npm/v/prompt-to-asset?style=flat&color=cb3837&logo=npm&logoColor=white&label=npm"/></a> <a href="https://www.npmjs.com/package/prompt-to-asset"><img alt="downloads" src="https://img.shields.io/npm/dm/prompt-to-asset.svg?style=flat&color=8b5cf6&label=downloads"/></a> <a href="https://github.com/MohamedAbdallah-14/prompt-to-asset/actions/workflows/ci.yml"><img alt="CI" src="https://github.com/MohamedAbdallah-14/prompt-to-asset/actions/workflows/ci.yml/badge.svg"/></a> <a href="./LICENSE"><img alt="license" src="https://img.shields.io/badge/license-MIT-22d3ee.svg?style=flat"/></a> <a href="https://nodejs.org"><img alt="node" src="https://img.shields.io/badge/node-%E2%89%A520.11-10b981.svg?style=flat"/></a> <a href="https://modelcontextprotocol.io"><img alt="MCP" src="https://img.shields.io/badge/MCP-1.0-a78bfa.svg?style=flat"/></a> <a href="https://glama.ai/mcp/servers/MohamedAbdallah-14/prompt-to-asset"><img alt="Glama score" src="https://glama.ai/mcp/servers/MohamedAbdallah-14/prompt-to-asset/badges/score.svg"/></a> <a href="#30-second-start"><img alt="zero-key" src="https://img.shields.io/badge/zero--key-ready-16a34a.svg?style=flat"/></a> <a href="https://github.com/MohamedAbdallah-14/prompt-to-asset/stargazers"><img alt="stars" src="https://img.shields.io/github/stars/MohamedAbdallah-14/prompt-to-asset?style=flat&color=f59e0b&logo=github"/></a> </p> <p> <a href="cursor://anysphere.cursor-deeplink/mcp/install?name=prompt-to-asset&config=eyJjb21tYW5kIjogIm5weCIsICJhcmdzIjogWyIteSIsICJwcm9tcHQtdG8tYXNzZXQiXX0="><img alt="Install in Cursor" src="https://img.shields.io/badge/Install_in_Cursor-000000?style=for-the-badge&logo=cursor&logoColor=white"/></a> <a href="vscode:mcp/install?%7B%22name%22%3A%20%22prompt-to-asset%22%2C%20%22type%22%3A%20%22stdio%22%2C%20%22command%22%3A%20%22npx%22%2C%20%22args%22%3A%20%5B%22-y%22%2C%20%22prompt-to-asset%22%5D%7D"><img alt="Install in VS Code" src="https://img.shields.io/badge/Install_in_VS_Code-007ACC?style=for-the-badge&logo=visualstudiocode&logoColor=white"/></a> <a href="https://github.com/MohamedAbdallah-14/prompt-to-asset/releases/latest"><img alt="Claude Desktop" src="https://img.shields.io/badge/Claude_Desktop_(.mcpb)-D97706?style=for-the-badge&logo=anthropic&logoColor=white"/></a> <a href="https://smithery.ai/server/prompt-to-asset"><img alt="Smithery" src="https://img.shields.io/badge/Smithery-6366F1?style=for-the-badge&logo=bookstack&logoColor=white"/></a> </p> _{<a href="#30-second-start">Quickstart</a> · <a href="#free-paths-at-a-glance">Free paths</a> · <a href="#usage">Usage</a> · <a href="#the-three-modes">Modes</a> · <a href="#free-paths-beyond-pollinations">Free APIs</a> · <a href="#mcp-tools">MCP tools</a> · <a href="./GETTING_STARTED.md">Full guide</a> · <a href="./CHANGELOG.md">Changelog</a>} </div>

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30-second start

Pick one. Run it. You're done. The recommended path is first.

Runtime: Node ≥ 20.11 (24 recommended). macOS, Linux, Windows (WSL2 for --fix native deps).

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🔵 AI assistant · recommended

Click an install button above. Then paste one of these into chat:

• Make a transparent logo for Forge, a dev-tools brand. Flat vector, warm orange.
• Make a favicon for my app, dark-mode aware.
• Fan this master.png out to iOS + Android + PWA.
• Ingest this screenshot as a mark, vectorize, export everything.

Works in Cursor, Claude Code, VS Code, Windsurf, Codex, Gemini CLI. Zero terminal typing.

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🟢 Zero key, zero install

One curl, one npx. Offline fan-out to every platform.

curl -o logo.png \
  "https://image.pollinations.ai/prompt/\
minimal+flat+vector+logo\
?model=flux&width=1024&nologo=true"

npx prompt-to-asset export logo.png \
  --platforms ios,android,pwa,favicon

Outputs: iOS AppIconSet, Android adaptive, PWA, favicon bundle, visionOS scaffold.

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🟣 CLI · free API keys

Best CLI experience: free tokens first, paid keys optional.

npm i -g prompt-to-asset
p2a doctor          # check env
p2a doctor --fix    # auto-install deps
p2a pick            # interactive

Start with Cloudflare Workers AI, NVIDIA NIM, HF Inference, Stable Horde, and free trials. Paid providers remain optional fallbacks.

</td> </tr> </table>

<a id="free-paths-at-a-glance"></a>

Free paths at a glance

You don't need a paid API key. Ranked best-first:

Route	Gets you	Signup
inline_svg via AI assistant	Logos, favicons, icon packs — instant	None
Cloudflare Workers AI	Flux-1-Schnell + SDXL, 10k neurons/day	Free token + account ID
NVIDIA NIM	Flux.1-dev, Flux.2-klein, SDXL, SANA	Free token, no card
HF Inference	SDXL, SD3, Flux dev/schnell	Free read token
Stable Horde	SDXL, Flux on community GPUs	Anonymous queue
Pollinations (HTTP GET)	Last-resort raster, RGB	None
Google AI Studio (paste-only UI)	Nano Banana / Nano Banana Pro	Google account

Details + quotas: Free paths beyond Pollinations. Run p2a doctor or ask your assistant for asset_doctor() to see what's live right now.

[!TIP] Stuck? Click Install in Cursor or Install in VS Code above, restart the editor, and say: "make a favicon for my app, dark-mode aware."

---

Highlights

• Free CLI-first generation — p2a doctor, p2a pick, and the MCP tools rank free API routes before paid models, so developers can generate inside the CLI without enabling billing.
• Three execution modes — inline_svg (host LLM authors SVG), external_prompt_only (paste into any web UI), api (server calls a free or paid provider). Pick what fits. All three can finish on $0.
• 60+ models, free-first routing — Cloudflare Workers AI, NVIDIA NIM, HF, Horde, Pollinations, free trials, plus optional paid OpenAI / Ideogram / Recraft / BFL / Gemini. Each rule cites a research source.
• Refuses to do the wrong thing — the Never column. No wordmarks past 3 words through a diffusion sampler. No transparent PNG through Imagen. No negative_prompt on Flux.
• Offline platform fan-out — one 1024² master → iOS AppIconSet, Android adaptive + monochrome, PWA 192/512/512-maskable, favicon bundle, visionOS parallax, Flutter launcher. Zero network.
• Validates before shipping — tier-0 checks on every output: dims, alpha presence, checkerboard FFT, safe-zone bbox, ΔE2000 palette drift, WCAG contrast, OCR Levenshtein on wordmarks.
• Sprite sheets + 9-slice — pack PNG frames into TexturePacker-compatible atlases (Phaser, PixiJS, Godot, Unity); emit 9-slice numbers + CSS border-image + Android .9.png.

---

Table of contents

<details> <summary>Click to expand</summary>

• 30-second start
• Usage — what to say to your assistant
• The three modes — inline_svg · external_prompt_only · api
• The router — which model for which job, and what never
• Free paths beyond Pollinations
• Install
• Models covered — 60+
• MCP tools — 25 tools
• CLI surface
• Brand bundle (brand.json)
• Platform support
• Architecture
• Comparison
• Security
• Research-backed decisions
• Development
• Community · License

</details>

---

Usage

You just talk to your assistant. Example from a new chat:

Make me a transparent logo for a developer-tools company called Forge. Flat vector, two-tone warm orange on neutral.

Behind the scenes:

1. asset_doctor() — check what modes and providers are live.
2. asset_init_brand({ app_name: "Forge", palette: ["#EA580C", "#F5F5F4"] }) if no brand.json exists.
3. asset_enhance_prompt({ brief }) returns an AssetSpec: classification, rewritten prompt, modes_available[], optional svg_brief, optional paste_targets, and a routing_trace pointing at the research file that backed the decision (plus never_models — why Imagen or DALL·E got rejected).
4. Assistant offers you inline_svg / external_prompt_only / api.
5. If inline_svg: it writes <svg> inline and calls asset_save_inline_svg → writes master.svg, favicon.ico, apple-touch, AppIconSet, PWA bundle to disk.
6. If external_prompt_only: assistant shows the refined prompt and the best paste target (free first). You generate, save, then say "ingest this file" → asset_ingest_external.
7. If api: assistant calls the routed provider. Server mattes, vectorizes, exports, validates.
8. Follow-up: "also fan this out for iOS and Android" → asset_export_bundle with the saved master.

Zero CLI typing. The CLI is still first-class for CI, shell scripts, and non-MCP environments — both surfaces hit the same core.

---

Why this exists

Two facts shape everything here.

Producing production-grade software assets is a routing and post-processing problem, not a prompt-engineering problem.

Imagen 3/4 and Gemini Flash Image can't produce real RGBA PNGs — their VAE is RGB-only, so asking for a transparent background renders the grey-and-white checkerboard as pixels. SDXL can't spell past ~8 characters. Only Recraft emits native SVG. Flux errors on negative_prompt. None of that is visible in the model UI. All of it silently breaks one-shot "prompt → asset" tools.

You may not have an image-model API key. The plugin works anyway.

Every one of the three modes can finish on $0.

---

The three modes

flowchart LR
    A["one-line brief"] --> B["asset_enhance_prompt"]
    B --> C{"mode"}
    C -->|inline_svg| D["Host LLM emits SVG inline<br/>→ asset_save_inline_svg"]
    C -->|external_prompt_only| E["Paste into web UI<br/>→ asset_ingest_external"]
    C -->|api| F["Server calls routed provider"]
    D --> G["matte · vectorize · validate"]
    E --> G
    F --> G
    G --> H["AssetBundle<br/>ios · android · pwa · favicon · visionos · flutter"]

Mode	Key?	What happens	Best for
inline_svg	No	Server returns an SVG-authoring brief (viewBox, palette, path budget ≤ 40). Host LLM emits <svg>…</svg> inline, then asset_save_inline_svg writes master + favicon.ico + apple-touch + AppIconSet + PWA bundle. Instant. Deterministic.	Logos, favicons, icon packs, stickers, simple app-icon masters
external_prompt_only	No	Server returns the dialect-correct prompt plus a ranked list of paste targets, free paths first: Pollinations, HF Inference, Stable Horde, Google AI Studio, Ideogram, Recraft, Midjourney, fal.ai, BFL, ChatGPT, Firefly, Krea. Generate elsewhere, save locally, call asset_ingest_external.	Anything — best for illustrations, heroes, text-heavy logos
api	Optional	Server calls the provider directly. Works zero-key via Pollinations / Horde / HF, or with paid keys. Route → generate → matte → vectorize → export → validate → content-addressed bundle.	Automation, CI, no rate-limit tolerance

The host LLM picks the mode, or you do. The server surfaces modes_available so the assistant offers them to you. Free paths first — always.

---

The router

Router decisions live in data/routing-table.json. Capability matrix in data/model-registry.json. Every rule cites its research source.

Need	Primary	Fallback	Never
Transparent PNG mark	gpt-image-1.5 with background:"transparent"	Ideogram 3 Turbo (/generate-transparent) → Recraft V4	Imagen, Gemini Flash Image, SD 1.5
Logo with 1–3 word text	Ideogram 3 Turbo → gpt-image-1.5 → Recraft V4	Composite SVG type over mark	Imagen, SD 1.5, flux-schnell
Logo with >3 word text	Never a diffusion sampler. Mark + SVG typography composite.	—	—
Native SVG	Recraft V4 (V3 for brand-style pipelines)	inline_svg (host LLM authors SVG)	Everyone else
Photoreal hero	Free CLI route first: Cloudflare / NVIDIA NIM / HF	Flux Pro / gpt-image-1.5 / Gemini with paid keys	DALL·E 3, Imagen 4 for new work
Iterate an existing mark	flux-kontext-pro (edit-only)	Pollinations Kontext (free)	—
Zero-cost everything	inline_svg → Cloudflare / NVIDIA NIM / HF / Horde	Pollinations → paste-only	—

The Never column matters. It's why prompt-to-asset refuses to render wordmarks past 3 words in any diffusion sampler, and why asking for a transparent PNG never goes to Imagen.

---

Free paths beyond Pollinations

Option	How	Best at	Catch
Cloudflare Workers AI	Free API token + account ID	Flux-1-Schnell, SDXL, DreamShaper	10k neurons/day cap (~900 Flux-Schnell or 5k SDXL-Lightning)
NVIDIA NIM	Free API token, no card	Flux.1-dev, Flux.2-klein, SDXL, SANA	1k requests/month; strong free CLI route
HF Inference	Free read token	SDXL, SD3, Flux dev + schnell	Rate-limited, cold-start latency
Stable Horde	Anonymous kudos queue	SDXL, Flux community GPUs	Minutes of queue on the free lane
Pollinations.ai	curl → HTTP GET. No signup.	Throwaway raster	Last resort: silent model swaps, downsizing, RGB only
Google AI Studio (UI)	Free interactive web UI at aistudio.google.com	Nano Banana / Nano Banana Pro	No free API — paste-only; download PNG, call asset_ingest_external
Local ComfyUI	Community comfyui-mcp adapter	Full fidelity, no caps	You bring the GPU
inline_svg	Host LLM emits <svg> in chat	Logos, favicons, simple icons	≤40 paths; simple geometry
external_prompt_only	Paste into any web UI	Whatever that UI gives you	Manual save, then asset_ingest_external

<details> <summary><b>Google Gemini / Imagen — verified pricing (Apr 2026)</b></summary>

Verified 2026-04-26 against public Gemini API pricing:

• Imagen 4 image output is paid API. The pricing table lists Free Tier as "Not available" and prices Fast / Standard / Ultra at $0.02 / $0.04 / $0.06 per image.
• Nano Banana family is paid API. gemini-3.1-flash-image-preview (Nano Banana 2), gemini-3-pro-image-preview (Nano Banana Pro), and gemini-2.5-flash-image (original Nano Banana) list image output only in the paid tier. Billing must be enabled on the GCP project to use these via API.
• Free for text, multimodal understanding, and embeddings. The Gemini text-out models still have Free of charge input + output on the free tier.
• Free interactive image generation is also via the AI Studio web UI at aistudio.google.com. Community-observed limit 500–1,000 images/day, dynamic. Use external_prompt_only + asset_ingest_external if you want Nano Banana quality without billing.
• Free image generation via the Gemini consumer app at gemini.google.com: Basic 20/day, AI Plus 50/day, AI Pro 100/day, Ultra 1,000/day.
• Paid API pricing (per image, standard): Nano Banana (gemini-2.5-flash-image) $0.039; Nano Banana 2 Flash (gemini-3.1-flash-image-preview) $0.045/0.5K, $0.067/1K, $0.101/2K, $0.151/4K; Nano Banana Pro (gemini-3-pro-image-preview) $0.134/1K-2K, $0.24/4K (+ $0.0011 per input image); Imagen 4 Fast $0.02, Standard $0.04, Ultra $0.06. Batch API is 50% off.

</details>

Run p2a doctor (or ask your assistant for asset_doctor()) to see what's live in your environment right now.

---

Install

Every command works via npx — no install required.

# Zero install
npx prompt-to-asset doctor           # what's live in this shell right now
npx prompt-to-asset doctor --fix     # auto-install native deps (brew / cargo / scoop; never sudo)
npx prompt-to-asset pick             # interactive route picker
npx prompt-to-asset init --register  # scaffold brand.json + register in .cursor / .vscode / .windsurf

# Or global for daily use
npm i -g prompt-to-asset
p2a doctor

# Or per-project for CI
npm i -D prompt-to-asset

Register with your AI assistant

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Claude Code

claude mcp add prompt-to-asset -- p2a

Smithery (universal)

npx -y @smithery/cli install prompt-to-asset --client claude

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Cursor · VS Code · Windsurf · Codex · Gemini CLI

Use the install buttons at the top of this README, or see docs/install.md for the exact stanza per IDE.

Claude Desktop

Download the .mcpb bundle → double-click → restart.

</td> </tr> </table>

Once registered, your assistant has the full 24 asset_* tool surface.

---

Models covered

Paid direct APIs: gpt-image-1, gpt-image-1.5, dall-e-3 (deprecated 2026-05-12), imagen-3, imagen-4, gemini-3-flash-image (Nano Banana), gemini-3-pro-image, sd-1.5, sdxl, sd3-large, playground-v3, flux-schnell, flux-dev, flux-pro, flux-2, flux-kontext-pro, ideogram-3, ideogram-3-turbo, recraft-v3, leonardo-phoenix, leonardo-diffusion-xl, fal-flux-pro, fal-flux-2, fal-sdxl.

Free-tier / zero-key: pollinations-flux, pollinations-turbo, pollinations-kontext, pollinations-sd, horde-sdxl, horde-flux, hf-sdxl, hf-sd3, hf-flux-schnell, hf-flux-dev.

Paste-only surfaces: midjourney-v6, midjourney-v7, firefly-3, krea-image-1. Calling asset_generate_* with mode: "api" against a paste-only primary soft-falls-back to the first API-reachable model in the chain and surfaces a warning. If the whole chain is paste-only, you get an ExternalPromptPlan rather than an error.

---

<a id="mcp-tools"></a>

<details> <summary><b>🛠 MCP tool surface (25 tools)</b></summary>

Tool	Purpose
asset_capabilities	Inventory of modes + providers. Buckets paid / free-tier / paste-only; surfaces zero-key routes first. Read-only.
asset_enhance_prompt	Classify, route, rewrite. Returns modes + svg_brief + paste_targets + routing_trace { research_sources, never_models, fallback_chain } + clarifying_questions[] when the brief is ambiguous. Read-only.
asset_generate_logo	inline_svg / external_prompt_only / api. Returns InlineSvgPlan / ExternalPromptPlan / AssetBundle.
asset_generate_app_icon	Same three modes. api produces full iOS / Android / PWA / visionOS / Flutter fan-out. Set ios_18_appearances: true for dark + tinted variants.
asset_generate_favicon	favicon-{16,32,48}.png, icon.svg, icon-dark.svg, apple-touch, PWA 192/512/512-maskable, <link> snippet, manifest.webmanifest.
asset_generate_og_image	1200×630 via Satori + @resvg/resvg-js. Deterministic typography, no diffusion-rendered text garbage.
asset_generate_illustration	external_prompt_only / api. Brand-locked via bundle refs, LoRA, or style_id. Routed primary: Flux.2 (up to 8 refs).
asset_generate_splash_screen	iOS LaunchScreen-2732.png, Android mipmap-*/splash.png + theme XML, PWA splash + README. Pass existing_mark_svg to reuse an approved mark.
asset_generate_hero	Marketing hero art (16:9 / 21:9 / 3:2 / 2:1). external_prompt_only / api.
asset_save_inline_svg	Round-trip for inline_svg. Validates the SVG against the brief, writes the bundle.
asset_ingest_external	Round-trip for external_prompt_only. Matte → vectorize → validate → bundle.
asset_remove_background	BiRefNet / BRIA RMBG-2.0 / LayerDiffuse / difference matte / U²-Net.
asset_vectorize	vtracer / potrace / Recraft / posterize fallback, then SVGO.
asset_upscale_refine	DAT2 / Real-ESRGAN / SUPIR / img2img / Lanczos; asset-type-aware.
asset_validate	Tier-0 (dims, alpha, checkerboard FFT, safe-zone bbox, ΔE2000 palette, WCAG contrast, OCR Levenshtein). Tier-2 VLM-as-judge via PROMPT_TO_BUNDLE_VLM_URL.
asset_brand_bundle_parse	Parse brand.json / DTCG tokens / AdCP / Markdown into a canonical BrandBundle.
asset_doctor	Structured env inventory: native deps, free-tier routes ranked best-first, paid keys, paste-only surfaces, pipeline URLs, mode flags, "what to try next." Read-only.
asset_models_list	Browse the 60+ model registry with filters: free / paid / paste_only / rgba / svg. Read-only.
asset_models_inspect	Full capability dump for one model id (or aka alias). Strengths, weaknesses, paste targets, routing rules, env status. Read-only.
asset_export_bundle	Fan a 1024² master PNG into iOS AppIconSet + Android adaptive + PWA maskable + visionOS parallax + Flutter launcher + favicon. Offline.
asset_sprite_sheet	Pack PNG/WEBP/JPG frames into a sprite sheet + TexturePacker-compatible JSON atlas (Phaser / PixiJS / Godot / Unity). Offline.
asset_nine_slice	Emit a 9-slice config + CSS border-image + engine-ready numbers (Unity / Godot / Phaser / PixiJS) from an image plus four pixel guides. Optional Android .9.png.
asset_init_brand	Scaffold brand.json and ensure the assets dir exists. Auto-detects Next.js, Expo, Flutter, Xcode, Astro, Vite, Remix, Nuxt, React Native, Electron, Node.
asset_train_brand_lora	Wrap a user-owned LoRA training endpoint (PROMPT_TO_BUNDLE_MODAL_LORA_TRAIN_URL). Path-guarded; validates inputs.

Tools are annotated readOnlyHint / idempotentHint so Cursor auto-approves without prompting.

</details>

<a id="cli-surface"></a>

<details> <summary><b>⌨️ CLI surface</b></summary>

Used by the LLM over Bash when MCP isn't registered yet, and by CI. Every read-only command accepts --json.

p2a                          # default — MCP stdio server
p2a mcp                      # same, explicit
p2a export <master.png>      # offline platform fan-out
p2a export <master.png> --json
p2a init                     # interactive brand.json + IDE registration hints
p2a init --register          # + auto-write .cursor/mcp.json / .vscode/mcp.json / .windsurf/mcp.json
p2a pick                     # interactive model picker
p2a doctor                   # environment inventory
p2a doctor --json            # structured output
p2a doctor --data            # check data/model-registry.json ↔ data/routing-table.json consistency
p2a doctor --fix             # auto-install missing native deps (brew / cargo / scoop; never sudo)
p2a models list              # --free | --paid | --paste-only | --rgba | --svg
p2a models inspect <id>      # full capability dump
p2a sprite-sheet <dir>       # pack frames → PNG + atlas
p2a nine-slice <image>       # 9-slice JSON + CSS + engine numbers + .9.png
p2a --help

</details>

<a id="brand-bundle"></a>

<details> <summary><b>🎨 Brand bundle — <code>brand.json</code></b></summary>

{
  "name": "Halcyon",
  "palette": ["#2563eb", "#ffffff"],
  "fonts": { "display": { "family": "Inter", "weights": [700, 800] } },
  "style_refs": ["https://…/sample1.png", "./refs/style2.png"],
  "do_not": ["drop shadows", "heavy gradients"],
  "lora": "halcyon-flux-v2",
  "sref_code": "--sref 1234567890",
  "style_id": "rc_halcyon_01"
}

p2a init writes this for you, detecting the framework and suggesting an assets directory. Once present, every generator reads from it automatically.

</details>

<a id="platform-support"></a>

<details> <summary><b>📱 Platform support</b></summary>

Platform	What you get
iOS (Xcode)	AppIcon.appiconset with 1024 opaque, squircle-ready. iOS 18 dark + tinted variants via ios_18_appearances: true.
Android	Adaptive foreground + background, Android 13 monochrome, all mipmap densities, optional .9.png.
PWA / web	favicon.ico (16/32/48 multi-res), icon.svg with prefers-color-scheme dark support, apple-touch-icon.png 180×180 opaque, 192/512/512-maskable, manifest.webmanifest, <link> snippet for your <head>.
Flutter	Pre-populated flutter_launcher_icons.yaml wiring iOS, Android adaptive, web, macOS, Windows.
visionOS	Three-layer parallax scaffold with a README. Layer split stays a human decision.
Next.js / Astro / Vite / Remix / Nuxt / Expo / React Native / Electron	Framework detection via p2a init / asset_init_brand and a sensible output dir.
Games	sprite-sheet produces TexturePacker-compatible atlases (Phaser, PixiJS, Godot, Unity). nine-slice emits engine-ready numbers.

</details>

<a id="architecture"></a>

<details> <summary><b>🏗 Architecture</b></summary>

  brief (text)
    ↓  asset_capabilities         → modes available + free/paid/paste-only bucketing
    ↓  asset_enhance_prompt       → AssetSpec {
    ↓                                  routing_trace: { rule_id, reason, research_sources, never_models, fallback_chain },
    ↓                                  modes_available,
    ↓                                  svg_brief?,         (inline_svg)
    ↓                                  paste_targets?,     (external_prompt_only)
    ↓                                  rewritten_prompt, …
    ↓                                }
    ↓
    ├─ mode: inline_svg                → host LLM emits <svg>; asset_save_inline_svg writes bundle
    ├─ mode: external_prompt_only      → user pastes into web UI; asset_ingest_external runs matte → vectorize → validate
    └─ mode: api                       → provider(model, prompt, params) → matte → vectorize → upscale → export → validate

Content-addressed storage: assets/<hash[0:2]>/<hash>/<variant>.<ext>. The MCP server is synchronous and stateless. prompt_hash and params_hash in every AssetBundle are designed to drop straight into a BullMQ / SQS / Cloudflare Queues jobId for a hosted pipeline. Reference design: docs/research/18-asset-pipeline-tools/18e-production-pipeline-architecture.md.

Design thesis

You own the API keys. The LLM owns everything else.

The only thing that happens in a terminal is installing the package and putting keys in .env. Secrets shouldn't pass through chat. Every other verb — doctor checks, model inspection, platform fan-out, brand scaffolding, sprite sheets, 9-slice configs — is an MCP tool the assistant calls when you ask in natural language.

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Comparison

Tool	Prompt enhancement	Multi-model routing	Zero-key	Dev-asset bundle	Offline platform fan-out
Promptati / PromptHero	cinematic only	✗	✗	✗	✗
Looka / Brandmark / Designs.ai	✗	✗	✗	partial	✗
ChatGPT / Midjourney / Ideogram (direct)	✗	✗	✗	✗	✗
appicon.co	✗	✗	✓	partial	iOS only
flutter_launcher_icons	✗	✗	✓	partial	iOS + Android
prompt-to-asset	✓	✓ (60+ models)	✓ (Pollinations / HF / Horde / SVG)	✓	✓ (iOS + Android + PWA + visionOS + favicon + Flutter)

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Security

This tool handles API keys for up to 15 providers. Non-negotiables:

• Keys live in env vars only. Never written to disk, never logged, never echoed in MCP responses. Provider error bodies go through redact() (packages/mcp-server/src/security/redact.ts) before reaching the host LLM.
• Path access is allow-listed. image_path / output_dir / existing_mark_svg resolve through symlinks and reject anything escaping project cwd + configured output dir + cache dir + OS tempdir. Widen with P2A_ALLOWED_PATHS=/path1:/path2.
• SVG is XSS-sanitized before any write. <script>, <foreignObject>, on*= handlers, javascript: URIs, external <image href> / <use href>, CSS @import over the network — all rejected. The check runs unconditionally; SVGO is not required.
• Cost guardrail. Set P2A_MAX_SPEND_USD_PER_RUN=5.00 to cap any single tool call. Pre-flight estimate refuses to call if over. Free-tier routes are always $0.
• Data integrity at boot. assertDataIntegrityAtBoot() runs on start. If a routing rule points at a model id not in the registry, the server refuses to boot with a clear error. Check in CI with p2a doctor --data.
• No telemetry. No remote calls unless the routed provider explicitly requires one.

Full policy: SECURITY.md.

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Research-backed decisions

Every routing rule, dialect switch, safe-zone size, and text ceiling that's implemented is backed by a file under docs/research/. asset_enhance_prompt returns a routing_trace.research_sources array on every call. The angle → code pointer map, plus an honest ledger of what's wired and what's deferred, lives in docs/RESEARCH_MAP.md.

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Development

git clone https://github.com/MohamedAbdallah-14/prompt-to-asset.git
cd prompt-to-asset
npm install
npm run build
npm run typecheck
npm run lint
npm test               # vitest watch
npm run test:run       # vitest run (CI)
npm run smoke          # list tools via MCP stdio + correctness assertions
npm run sync           # regenerate IDE mirrors from SSOTs
npm run verify         # byte-verify mirrors match SSOTs

SSOTs live in skills/*/SKILL.md, rules/*.md, .claude-plugin/, and data/*.json. Don't edit .cursor/, .claude/, .windsurf/ directly — they're regenerated by scripts/sync-mirrors.sh and CI byte-verifies them.

• Contribution flow: CONTRIBUTING.md
• User on-ramp: GETTING_STARTED.md
• Common snags: TROUBLESHOOTING.md
• Release notes: CHANGELOG.md

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Community

• Issues + feature requests: GitHub Issues
• Security disclosures: SECURITY.md
• Code of Conduct: CODE_OF_CONDUCT.md
• Star history:

<a href="https://star-history.com/#MohamedAbdallah-14/prompt-to-asset&Date"> <img src="https://api.star-history.com/svg?repos=MohamedAbdallah-14/prompt-to-asset&type=Date" alt="Star History" width="600"/> </a>

If this repo saved you from hand-crafting another AppIconSet, a star helps it reach other developers fighting the same fight.

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Read more

The thinking behind the design, in long-form:

• Why I stopped picking image models and built a router instead — the case for routing across 30+ image models.
• MCP server architecture: what's inside prompt-to-asset — architecture deep-dive.

Cross-posted on Medium and dev.to.

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License

MIT © prompt-to-asset contributors.

<div align="center"> _{Built on a 34-category research compendium. See <a href="./docs/research/SYNTHESIS.md">SYNTHESIS.md</a> and <a href="./docs/RESEARCH_MAP.md">RESEARCH_MAP.md</a>.} <br/><br/> _{<a href="#top">⬆ back to top</a>} </div>