agentmods.dev

cortex-design

cortex-design is a skill for Claude Code from mocaOS/cortex-app. It costs 50 tokens per session (433 once invoked), scanned A, original, Apache-2.0.

A design guide and asset library for creating Cortex interfaces. It defines the product's colors, fonts, spacing, motion, icons, dark-mode treatment, and reusable interface components.

In plain words
What is it for?
Use it when designing or building Cortex screens, interface mockups, throwaway prototypes, or related visual assets.
Why use it?
It gives prototypes and production screens a consistent visual language and clarifies how the brand should appear.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

not rated 7repo 11d ago A scan 50 tokens original Apache-2.0

Good fit Use it when designing or building Cortex screens, interface mockups, throwaway prototypes, or related visual assets.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mocaos/cortex-app/design-system
View source ↗ mocaOS/cortex-app docs.cortex.eco
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add mocaOS/cortex-app --skill design-system
Clone the repo
git clone --depth 1 https://github.com/mocaOS/cortex-app

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cortex-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/mocaos/cortex-app/design-system/github.svg)](https://agentmods.dev/skills/mocaos/cortex-app/design-system)
Your own site
<a href="https://agentmods.dev/skills/mocaos/cortex-app/design-system"><img src="https://agentmods.dev/badge/skills/mocaos/cortex-app/design-system/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cortex-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/mocaos/cortex-app/design-system"><img src="https://agentmods.dev/badge/skills/mocaos/cortex-app/design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 433 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.00433
Opus 5.5 $0.00020 $0.00173
Sonnet 5.5 $0.00010 $0.00087
Haiku 4.5 $0.00005 $0.00043

Measured 2mo ago against content hash 7b0aed5a2b6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cortex-design scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

design-system/SKILL.md · 30 lines

What it actually says

Read the README.md file within this skill, and explore the other available files.

If creating visual artifacts (slides, mocks, throwaway prototypes, etc), copy assets out and create static HTML files for the user to view. If working on production code, you can copy assets and read the rules here to become an expert in designing with this brand.

If the user invokes this skill without any other guidance, ask them what they want to build or design, ask some questions, and act as an expert designer who outputs HTML artifacts or production code, depending on the need.

Quick reference

  • Accent color (only chromatic): oklch(0.79 0.18 70.67) — use sparingly.
  • Fonts: Inter (UI), JetBrains Mono (code). Both variable, in fonts/.
  • Radius default: 0.5rem. Glass blur: 24px.
  • Icons: Lucide React, outline, 2 px stroke. No emoji.
  • Motion: opacity 0→1, y 20→0, 300–400 ms, 50 ms stagger.
  • Dark mode is primary. Add class="dark" to <html>.
  • Every answer shows sources. Every job shows status. Trust through transparency.

File map

  • README.md — full content & visual foundations
  • colors_and_type.css — canonical tokens + @font-face (import this)
  • tokens.css — token-only subset
  • fonts/ — TTFs
  • assets/logo.svg — wordmark
  • preview/*.html — live component specimens
  • ui_kits/library/ — pixel-faithful web-app recreation (see its README)
Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 30 lines · 50 tokens per session scan A 7b0aed5a2b6a

Subscribe to this mod's changes

cortex-design is a skill published in the GitHub repository mocaOS/cortex-app (7 stars, last pushed 11d ago), licensed Apache-2.0. It adds 50 tokens to every session and 433 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Design and UXagent-memoryagentic-aiai-agentai-agentsdeep-researchgraphrag
Related

cortex-design compared with skills from other repositories

cortex-design next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
cortex-designmocaOS/cortex-appSkill711d agoApache-2.0A50Claude Code
html-slidesbks-lab/open-bridgeSkill13yesterdayMITA80Claude Code, Codex
bridge-explorerbks-lab/open-bridgeSkill13yesterdayMITA63Claude Code, Codex
architecture-diagramHezaoHezao/poirotSkill2603mo agoMITA15Claude Code
concept-diagramsHezaoHezao/poirotSkill2603mo agoMITA12Claude Code
frontend-designHezaoHezao/poirotSkill2603mo agoMITA11Claude Code
build-mcp-appmostwise/dot-claudeSkill12mo agononeA111Claude Code