Cobalt Grid

SkillMedia

Lets your agent create slide decks that present a business case with value proof and ROI.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Cobalt Grid skill

About this capability

OpenDesign renewal + seat-expansion business case for a growing customer: realized value, usage proof, and the expansion ROI. Built as a decision-grade B2B sales deck for champion, finance approver.

What this skill tells your AI

The instructions your AI receives, as published by nexu-io/open-design in design-templates/html-ppt-zhangzara-cobalt-grid/SKILL.md and read by ahel’s review.

Electric cobalt italic serifs on a graph-paper canvas, anchored by stair-stepped pixel-glitch decorations and slim hairline rules.

A single self-contained HTML deck — typography, palette, decorative system, and slide vocabulary are all tuned together. Mixing layouts across templates breaks the system; stay inside this one.

At a glance

  • Scheme: light
  • Formality: high
  • Density: medium
  • Slides in demo: 8

Best for

Anything that should feel like a quietly serious design / research bulletin, art publication, or curated trend report. Strong for studio annuals, agency capabilities decks, design-research publications, architecture / art / academic decks, and any deck wanting one strict accent colour and a printed-ledger calmness rather than corporate polish.

Avoid for

Decks that need warmth, multi-colour energy, or a casual / playful voice — the strict cobalt + cream + grid palette is intentionally austere.

Workflow

  1. Clone example.html into the user's workspace as the working file.
  2. Replace placeholder content with the user's real headlines, body copy, numbers, names, dates, and section labels. Match existing dimensions when swapping image placeholders.
  3. Preserve the design system. Never substitute fonts, recolor the palette, restructure the layout grid, or strip decorative elements (corner brackets, paper grain, geometric shapes, illustrated SVGs). They are part of the identity.
  4. Adjust deck length by duplicating layouts. If the user has more content than the demo holds, duplicate an existing slide of the most appropriate layout. If less, drop slides from the bottom. Update page-number labels.
  5. Designing missing layouts: if a slide needs a layout the template doesn't have, design it from scratch using the same fonts, palette, decorative vocabulary, spacing rhythm, and component grammar — never bail to a different template.
  6. Keep the navigation runtime as shipped. If the deck ships an assets/deck-stage.js or inline keyboard handler, leave it intact.

Output contract

Emit between <artifact> tags:

<artifact identifier="zhangzara-cobalt-grid" type="text/html" title="Deck Title">
<!doctype html>
<html>...</html>
</artifact>

Source & license

Vendored from upstream MIT-licensed zarazhangrui/beautiful-html-templates.

The full upstream MIT license text — including the original copyright notice — ships in this skill at LICENSE and must be redistributed alongside any copy of example.html, template.json, or any vendored assets/ runtime. See template.json for the upstream metadata snapshot.

Signals

GitHub stars
95k
Forks
11k
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
html-ppt-zhangzara-cobalt-grid
Source
github.com/nexu-io/open-design