Install
$ agentstack add skill-nexu-io-open-design-huashu-golden-circle ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
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Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Golden Circle Diagram · 黄金圆环图解
Produce a single-file, one-diagram concept deck. You are visualizing a methodology the way Simon Sinek drew the Golden Circle on a TED flip chart: one geometric master figure carries the entire argument, and every page is that figure seen from a different angle. The visual system, canvas contract, and navigation runtime are locked by example.html. Start from example.html, replace content only — do not rewrite the design or the script. Do not introduce any color or font outside this spec.
Generated from the 中性派「单图母图概念图解 / Diagrammatic Minimalism」spec in references/design-styles.md of huashu-design by 花叔 (alchaincyf), MIT licensed. Lineage: Simon Sinek's Golden Circle TED talk, Bauhaus geometric abstraction, "one diagram rules the room" information architecture.
Hard spec (locked — violating any line is a regression)
Canvas & runtime
- One `` fixed at 1920 × 1080 px, centered with
position: fixed; top: 50%; left: 50%; a fit() function applies translate(-50%, -50%) scale(min(innerWidth/1920, innerHeight/1080)) on load and resize. All inner layout in px — the scaler owns responsiveness.
- Each page is one `
inside#stage` with a
data-screen-label="01 封面"-style label; exactly one slide carries .active; the dark closing page adds .dark.
- Navigation (keep the script verbatim):
←/↑/PageUpprevious,
→/↓/Space/PageDown next, Home/End first/last; #/N hash routing (1-indexed) read on load + hashchange, written via history.replaceState; click left third = back, rest = forward; fixed counter pill bottom-right, key-hint bottom-left. No external JS, no build step — the file must open inside a sandboxed iframe via file://.
Design tokens (:root — keep the names, re-theme values only)
| Token | Value | Role | |---|---|---| | --paper | #FAFAF7 | warm-white page background | | --ink | #141414 | primary text | | --night | #161512 | dark closing-page background | | --night-ink | #F5F2EA | primary text on dark | | --accent | #E8860C | the only accent hue (gold) | | --tint-2 | #F2BA6B | middle-ring tint of the accent | | --tint-3 | #FAE5C3 | outer-ring tint of the accent | | --neutral-2 | #E8E4D9 | de-emphasized ring (warm grey) | | --neutral-3 | #F2EFE7 | de-emphasized outer ring | | --line | #E5E1D6 | hairline rules | | --muted | #8A867C | secondary labels | | --muted-2 | #56524A | body copy | | --faint | #B5B0A4 | tertiary captions | | --night-line | #3A372F | hairlines on the dark page | | --display | 'Jost', 'Manrope', 'PingFang SC', … | uppercase tracked labels | | --sans | 'Manrope', 'PingFang SC', … | headlines + body |
- Fonts come from the single existing Google Fonts
@import
(Jost 400–700 + Manrope 400–800); Chinese falls back to PingFang SC / Microsoft YaHei. No other @import, no CDN scripts, no icon fonts.
--tint-2/--tint-3are tints of the accent, not second colors. **A second
accent hue is the cardinal sin of this style.**
THE master figure (the deck's entire visual vocabulary)
The .gc component — nested concentric circles, pure border-radius: 50% divs — is the only diagram in the deck. Keep its geometry verbatim:
.gc { --gc: px }sets the diameter; rings atinset: 0(WHAT,
--tint-3), inset: 16% (HOW, --tint-2), inset: 33% (WHY, solid --accent, flex-centered core label).
- Uppercase labels (
.lbl, Jost 600,letter-spacing: .35em) are embedded
inside the bands: WHAT centered at 8% height, HOW at 24.5%, WHY in the core at calc(var(--gc) * 0.085) in --paper white.
- Locked modes — these are the full enumeration, do not invent new ones:
- default: golden fill (cover, master page, the "right way" comparison);
.mode-how/.mode-what: target band--accent(its label--paper),
other bands --neutral-3/--paper;
.mode-grey: all-neutral counter-example (core--muted);.mode-outline: transparent rings with 2px--accentstrokes — dark
closing page only.
- Derivatives allowed: the solid accent disc (
.why-disc, the WHY page's
zoomed core), faint watermark rings (1px accent border, opacity ≤ 0.3, may bleed off-canvas), mini three-circle inline-SVG glyphs (36px, one band accented to mark a section), and inside-out arrows (inline SVG: dot at the center, 2–2.5px line, solid polygon head). Nothing else — no photos, no charts, no emoji, no decorative illustration.
- The rings may be renamed to match the user's framework (信念/路径/产品,
core/loop/surface…) but there are always exactly three bands, and the innermost band is always the thesis.
Chrome (hairline strips, not bars)
- Every page:
.head(top) and.foot(bottom) — 84px strips at
left/right: 80px with a 1px --line border (--night-line on dark), Jost 13px/600/3px-tracking uppercase; left side carries the deck logotype in --ink ` + a gold / separator; right side of .foot carries NN / 章节名. Content lives in .body (top/bottom: 84px, left/right: 80px`).
- The only rounded rectangle in the deck is the runtime counter pill (and
the WHAT evidence cards at 18px radius); everything else is a circle or a straight hairline.
Layout enumeration (use 6+ per deck, never one layout everywhere)
| Layout | Role | |---|---| | cover | left headline (gold full stop 。) + hairline meta row; right master figure | | contents | hairline rows: gold number + mini glyph + title + uppercase EN label | | master | the figure at ≈660px + inside-out arrow piercing the rings + per-ring notes | | why | solid accent disc (zoomed core) + one belief statement, ≤ 2 sentences | | how | .mode-how figure + three hairline-separated pillar columns | | what | .mode-what figure + 2×2 evidence cards with glyph markers | | big-number | 300px Manrope-800 numeral (accent unit glyph) + stat rail + watermark rings | | comparison | grey circle (inward arrow, outside-in) vs gold circle (outward arrow, inside-out) | | quote | 66px/800 quote, key word in accent, offset watermark rings bleeding right | | closing | dark page, .mode-outline figure + CTA in a 2px accent outlined capsule |
Typography & discipline
- Headlines: Manrope 800, 64–96px, negative tracking; the cover/closing
full stop 。 is the accent. Body (.lede) 20px/1.85 --muted-2 with `` ink emphasis — statements, not bullet walls; any list ≤ 3 short lines.
- Labels (
.kicker,.caption, ring labels): Jost 600, 12–15px, 3–5px
tracking, uppercase — the connective tissue of the style.
- Chinese copy uses 「」 quotes and full-width punctuation; accent is applied
to single glyphs and key words, never whole headings.
- Default 10 pages (8–11 allowed). Exactly one dark page (the closing).
Accent budget: outside the figure itself, ≤ 3 gold touches per page.
- One idea per page, mapped onto the figure: if a concept cannot be pointed
to on the circle, it does not belong in this deck.
Workflow
- Clarify once: topic, audience, page count — and the user's
three-band framework (what is the WHY / HOW / WHAT of their argument), plus 1–2 protagonist numbers for the evidence page. The master figure is the deck; name its bands before writing any page.
- Copy
example.html, retitle, rename the ring labels if needed, then
replace each section's content following the layout enumeration. Keep the .gc component, tokens, hairline chrome, and the script intact. Re-theme by changing token values only — and keep --tint-2/--tint-3 as tints of whatever single accent you choose.
- For ≥ 5 pages, showcase first: build the cover + the master-diagram
page, confirm the figure's band names read correctly, then batch the rest.
- Self-check before delivery: arrow through every page; counter and
#/N hash stay in sync; no overflow beyond 1920×1080; every page shows the figure or one of its locked derivatives; ring labels sit inside their bands at every --gc size used; exactly one accent hue in the whole file; no leftover demo ("同心"/"TONGXIN") text; grep for TODO.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: nexu-io
- Source: nexu-io/open-design
- License: Apache-2.0
- Homepage: https://open-design.ai
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.