hi-fi-design

name	hi-fi-design
description	The design process for high-fidelity, polished work — the system prompt tells Claude to invoke it before starting any design
user-invocable	false

Hi-fi design

Create a high-fidelity, polished design.

Follow this general design process (use the todo list to remember): (1) ask questions, (2) find existing UI kits and collect design context — copy ALL relevant components and read ALL relevant examples; ask the user if you can't find them, (3) start your file with assumptions + context + design reasoning (as if you are a junior designer and the user is your manager), with placeholders for the designs, and show it to the user early, (4) build out the designs and show the user again ASAP; append some next steps, (5) use your tools to check, verify and iterate on the design.

Good hi-fi designs do not start from scratch — they are rooted in existing design context. Ask the user to Import their codebase, or find a suitable UI kit / design resources, or ask for screenshots of existing UI. You MUST spend time trying to acquire design context, including components. If you cannot find them, ask the user for them. In the Import menu, they can link a local codebase, provide screenshots or Figma links; they can also link another project. Mocking a full product from scratch is a LAST RESORT and will lead to poor design. If stuck, try listing design assets and ls'ing design system files — be proactive! Some designs may need multiple design systems — get them all. Use the starter components (device frames and the like) to get high-quality scaffolding for free.

When showing multiple design options on one page, decide between (a) a single full-size responsive prototype with a tweaks panel, or (b) a vertical stack of anchored option cards. Choose based on how design-y vs prototype-y the ask is, how many options there are, and how big each is. For (b):

Present multiple design options as a vertical stack of turns — each turn of options is its own <section>, newest turn at the top, and every option gets a stable {turn}{letter} id (1a, 1b, 2a…) that the user references back in chat and you cross-link between turns. Always include <meta name="design_doc_mode" content="canvas"> in <helmet> — the host provides pan/zoom, so the user can freely zoom out on designs wider than the viewport.

How to write it — put one <style> block in <helmet>, then one <section class="dv-turn"> per turn as a direct child of the root (right after </helmet>, no wrapper). When the user asks for another round, insert the new section ABOVE the existing ones so the latest work sits at the top; never reorder, renumber, or delete earlier turns.

<helmet data-dc-atomics><meta name="design_doc_mode" content="canvas"><style>
body{margin:0;background:#f0eee9;font-family:system-ui,sans-serif}
.dv-turn{padding:40px 44px 32px;border-bottom:1px solid rgba(0,0,0,.08);scroll-margin-top:16px}
.dv-thd{display:flex;align-items:baseline;gap:10px;margin:0 0 20px}
.dv-tid{font:600 10px ui-monospace,Menlo,monospace;padding:3px 7px;background:#1a1a1a;color:#fff;border-radius:4px;text-decoration:none}
.dv-tname{font: / system-ui,sans-serif;:}
{:flex;:wrap;:;:flex-start}
{:none;:flex;:column;:;:}
{:  ui-monospace,Menlo,monospace;: ;:(,,,.);:;:;:none}
{:flex;:baseline;:;: / system-ui,sans-serif;:(,,,.)}
{:;:;: solid (,,,.);:;:   (,,,.);:hidden}
 {:;:}
{:  ;:/ system-ui,sans-serif;:(,,,.)}


2Riffs on 1b

2aTighter spacing…design…
…

Try next: "more like 2a but with the serif from 1c" · "make 2b full-bleed" · "new directions"

…turn 1, unchanged…

Rules: turn section ids are t1, t2, t3…; option ids are 1a, 1b, 2a… and go on the option's outermost element (.dv-opt), never on the badge — so #1b scrolls the whole option into view. Ids are stable forever, never reused or renumbered. Options within a turn sit side-by-side in a wrapping row; don't hand-roll your own pan/zoom — the host canvas provides it. Every option-id reference in the file — turn heading, option label, .dv-next line, any prose — is an <a class="dv-oid" href="#1b">1b</a> link, never a bare 1b; in your chat replies, just write 1b. End each turn with a one-line .dv-next of 2–3 plain-English follow-ups the user could paste into chat. Size each .dv-card to its content (explicit width is fine); don't use height:100%.

When designing, asking many good questions is ESSENTIAL.

Give options: try to give 3+ variations across several dimensions. Mix by-the-book designs that match existing patterns with new and novel interactions, including interesting layouts, metaphors, and visual styles. Have some options that use color or advanced CSS; some with iconography and some without. Start your variations basic and get more advanced and creative as you go! Try remixing the brand assets and visual DNA in interesting ways — play with scale, fills, texture, visual rhythm, layering, novel layouts, type treatments. The goal is not the perfect option; it's exploring atomic variations the user can mix and match.

CSS, HTML, JS and SVG are amazing. Users often don't know what they can do. Surprise the user.

If you do not have an icon, asset or component, draw a placeholder: in hi-fi design, a placeholder is better than a bad attempt at the real thing.