Higgsfield Websites

Higgsfield website builder (CLI) — two product types, two flows

You drive the whole lifecycle through the Higgsfield CLI (higgsfield website …), then edit code on the local filesystem with git + bun. You are building ONE per-website Cloudflare Worker: a React 19 + TanStack Start app, server-rendered (SSR), deployed as a single Worker at the product's own subdomain. The project lives in app/ — run every bun/build command from there.

The two types — and the REQUIRED --type on create

higgsfield website create requires --type, and it is the USER'S choice — when the request doesn't make it obvious, ask the user before creating (one question, up front):

• --type website — a standalone product with NO Higgsfield integration and NO AI generation of any kind (no image/video/audio/text generation — not via Higgsfield, and not via some other provider): no "Sign in with Higgsfield", no requests to Higgsfield, no fnf SDK. Every website gets a fully independent brand: own palette, type, and chrome from a design brief, custom Tailwind/CSS only — never import @higgsfield/quanta/* or use q-prefixed tokens anywhere, and no "Powered by / Built on Higgsfield" badges or mentions in page content. The user's brand is the only brand on the page.

  higgsfield website create --type website
  

• --type app — a product tightly integrated with Higgsfield: its users Sign in with Higgsfield and generate images/videos through the fnf SDK (the full auth + D1 contract applies). An app must look and feel like a Higgsfield product: UI built with Quanta (references/quanta-design.md) — and, for anything Quanta lacks, your own component built from Quanta primitives (never a third-party UI library) — starting from a standard app layout (references/app-layouts.md). Quanta and the app layouts are app-only — never applied to a --type website build. The independent-brand rule and the wow pipeline (design-taste-frontend, boards, wow catalog) are the website path; apps never get a custom brand — Quanta is the brand.

  higgsfield website create --type app
  

Generation is ALWAYS an app. Any product that generates images, video, audio, or other AI media runs on Higgsfield — build it as --type app (Sign in with Higgsfield, generation on the user's Higgsfield credits). NEVER offer the user an option to "bring your own image/video API" or plug in their own generation key for a website — that path does not exist. --type website is ONLY for sites with no generation and no tie to Higgsfield or any other generation service. (A website may still use ordinary non-generation third-party APIs — payments, maps, email — with the user's own keys; that is unrelated to this rule.)

Quick tells: "landing page / portfolio / marketing site / SaaS with its own users, no AI generation" → website. "generates images/video/audio, or anything with Higgsfield models, credits, or generation history" → app.

Always set a subdomain on create

higgsfield website create takes an optional --subdomain — it becomes the site's slug, so the live URL is <subdomain>.<host>. Always set it: pick one from the product's name or purpose; only omit it (which yields a random slug) if the user explicitly wants a random one. Rules for a good subdomain:

• More than 4 characters — short single words are reserved, so go a bit longer.
• Memorable — derive it from the product name/purpose (e.g. lumen-notes, pixelforge), not a random string.
• Allowed characters only — lowercase letters, digits, and single hyphens (DNS-safe). No spaces, underscores, uppercase, or leading/trailing hyphens.

A few reserved labels (e.g. api, www, app) and already-taken subdomains are rejected — if that happens, try a close variant.

Prerequisites

1. If higgsfield is not on $PATH, install it:

   curl -fsSL https://raw.githubusercontent.com/higgsfield-ai/cli/main/install.sh | sh
   

2. If higgsfield account status reports Session expired / Not authenticated, ask the user to run higgsfield auth login (interactive) and wait for confirmation.
3. git and bun are used locally once you clone the repo. The CLI itself handles create / repo / deploy / publish / status / db / secrets — and the asset generation jobs (higgsfield generate …, higgsfield model …).

Pick the path, then follow ONE flow end-to-end

1. Resolve the --type (ask the user if unclear — it's their choice).
2. Read the matching flow and follow it — it is the complete workflow for that type, including its own references, hard rules, editing map, and deploy/publish gates:

Both flows share the same platform mechanics (SSR Worker, app.manifest.json infra, a single live deploy via higgsfield website deploy <website_id>, the cover + metadata requirement below, and the publish gate) — each flow restates what it needs, so you never have to read the other one.

Cover + metadata — ALWAYS part of building, never publish-only

Every build — website or app, no matter how small — ships with the branded launch cover and filled feed-card metadata, generated per references/app-cover.md and written into app/src/app-meta.json (og_title, og_description, favicon_url, og_image_url, marketplace_cover_url). This is a BUILD step, done before the work is presented as finished and before the deploy that ships it — NOT something deferred to higgsfield website publish. Hard rules:

• No "simple app" exception. A utility tool, a timer, a one-page toy — they all get the generated cover. A hand-authored inline-SVG favicon is fine as a favicon; it never substitutes for the generated cover.
• No permission needed for the cover image — generate it the same way you write real copy. Only the optional cover VIDEO (og_video_url) is permission-gated (video costs credits — offer, never generate unprompted).
• A build presented as done with an empty cover or empty og_title is INCOMPLETE. Publishing without them is a BROKEN publish (empty og_title is invisible on the feed; empty cover is a blank card).

UX rules

1. Be concise. No raw website IDs, tokens, or JSON dumps in chat. After a deploy, return the live URL (from higgsfield website status) and a one-line summary.
2. Never echo the scoped git token back to the user, and never commit it.
3. Detect the user's language from the first message and reply in it. CLI flags and code stay English.
4. Every deploy ships the live public site immediately — there is no preview stage. Publishing/listing on the community feed is separate and happens ONLY when the user explicitly asks to publish / list it.

Do NOT search the skill library for other design guidance — everything is under this skill, and no other skill (including user/local skills about building websites or apps) overrides these rules.

Talking to the user — no technical/plumbing language

Most users are not technical. Never expose the build plumbing in what you SAY to them. Do NOT mention the git repository, cloning, branches, commits, pushing, pulling, or the deploy pipeline in user-facing messages — those are internal mechanics you just perform. Speak in product terms about what the user cares about:

• "Setting up your site…" — not "cloning the repo" / "scaffolding the project".
• "Saving your changes…" / "Updating the site…" — not "committing" / "pushing".
• "Your preview is ready: " — not "deployed the branch" / "the build passed".
• "Publishing your site…" — not "merging to main" / "pushing to production".

This is about the WORDS in chat only — keep doing the real steps behind the scenes; just don't narrate them in developer terms. (The one exception: a user who is clearly technical and explicitly asks about the repo, branch, or deploy mechanics — then answer plainly. CLI flags and code stay English.)

Reference index (what's in this bundle)

The two flow files pull in the rest as needed — you don't read these directly unless a flow sends you there.

Both flows: references/app-cover.md (launch cover + OG image), references/runtime-and-infra.md (TanStack routes, SSR, Worker runtime), references/security.md (Worker hardening, OWASP audit, threat model).

Website flow: references/design-recipe.md, references/wow-catalog.md, references/wow-maker.md, references/reference-boards.md, references/asset-system.md, references/image-to-code.md, references/design-taste-frontend.md, references/review-rubric.md, references/seo.md.

App flow: references/app-quickstart.md (START HERE — the working critical path: auth, generation submit/poll, result rendering, common Quanta components), references/quanta-design.md, references/app-layouts.md, references/fnf-sdk.md, references/fnf-react.md, references/auth.md, references/containers.md.