Install
$ agentstack add skill-nexu-io-open-design-saas-landing ✓ 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.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
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
SaaS Landing Skill
Produce a single-page SaaS landing. Agent, follow this workflow exactly.
1. Read context
Before writing anything:
- Read
DESIGN.mdin the current working directory. If missing, stop and ask for one. - Identify the color palette, typography tokens, and layout principles.
- Note the "Agent Prompt Guide" section — it overrides any instruction here if they conflict.
2. Plan sections
Required sections, in order:
- Hero — logo-or-wordmark, headline (tagline input), subhead (1–2 sentences), primary CTA, secondary CTA. Use the hero_density parameter as vertical padding in px.
- Features — 3–6 feature tiles. Each: icon, short title, 1–2 sentence body.
- Social proof —
proof_countlogos or testimonials. If 0, skip this section. - Pricing — 2–3 tiers. Include only if
has_pricingis true. - Footer CTA — large accent-colored band with one-button call to action.
- Footer — minimal: links + copyright.
3. Apply design system
- All colors must come from DESIGN.md tokens. Do not invent hex values.
- Typography: use the declared display font for headlines, body font for everything else.
- Layout: respect the grid, max-width, and section spacing rules.
- Components: use declared button/card/input patterns. Do not add shadows if DESIGN.md's Depth & Elevation says minimal.
- Accent: use the accent color only once in the hero, once in the footer CTA, and for all links. Do not flood the page.
4. Write the file
Output a single self-contained index.html with:
- All CSS inlined in a `
block in`. - System font fallbacks if DESIGN.md fonts aren't loadable from Google Fonts etc.
- No external JS.
- Semantic HTML (`
,,,`). - Each editable element tagged with
data-od-id=""so the host app's comment mode can target it.
5. Self-check
Before finishing, verify:
- [ ] All text is content-meaningful, not lorem ipsum (use product_name and tagline inputs; generate plausible specific copy for the rest).
- [ ] No broken color references (every CSS color value is in DESIGN.md's palette or a valid alpha/fallback variant).
- [ ] Responsive breakpoints match DESIGN.md's Responsive Behavior section.
- [ ] The page looks good at 1440w, 768w, and 375w (mentally simulate).
- [ ] Accent used no more than twice total.
6. Done
Write only index.html. Do not generate a separate CSS file, JS file, or README.
For skill authors reading this as a reference
This is a minimal but complete skill. Structure:
saas-landing-skill/
├── SKILL.md ← you are here
└── assets/
└── base.html (optional starter template; this skill doesn't use one)
Things to notice:
- The
od:front-matter block is optional for Claude-Code-only compatibility, but adding it lights up OD's typed inputs, sliders, preview metadata, and capability gating. - The workflow below the front-matter is plain Markdown that the agent reads as its system prompt.
- DESIGN.md is treated as a collaborator, not an override. The skill gives the agent authority to override when the brief conflicts, but never to invent new tokens.
data-od-idtagging is how we wire elements to comment mode. Skills that want comment-mode compatibility must annotate their output.
See [../../docs/skills-protocol.md](../../docs/skills-protocol.md) for the full protocol.
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.