Jev Design

What it does

When your agent uses it

• Frontend & Design work in your project

Example prompts

• “/jev-design”

Requirements

• Python 3
• Node.js

Workflow steps

4 steps, taken from the step headings in SKILL.md.

1. 1Brief
2. 2Pick
3. 3Compose and build
4. 4Review

What it can do on your machine

Read from SKILL.md and the folder at commit 5218674. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/ (Python), which the agent can run.

  Shell commands in SKILL.md call:

  • python3
  • npx

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Jev Design loads about 1.6k tokens when it runs, and up to ~17k if it reads all its reference files. Until then it costs about 57 tokens; SKILL.md has 745 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~57

When it runs · the whole SKILL.md, loaded when a task matches

~1.6k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~17k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from notque/vexjoy-agent at commit 5218674, republished under its MIT licence (© notque). 745 words, ~1,602 tokens.

name

jev-design

description

Design React interfaces with the full shadcn/ui catalog. The agent writes a brief, Jev picks components and a style recipe from bounded catalogs, then the agent implements, renders, and reviews against concrete checks.

user-invocable

true

routing.triggers

jev design, design with jev, shadcn component plan, choose shadcn components, shadcn ui design, component style recipe, which shadcn component, shadcn theme…

routing.category

frontend

routing.pairs_with

frontend, building-with-jev

{"brief":"Support agents triage 200+ cases a day on desktop; calm, dense, keyboard-first.",
 "style_traits":["dense","calm","professional"],
 "requirements":[
  {"id":"results","role":"Compare, filter, and act on open cases","capabilities":["tabular-data","filter","row-actions"]},
  {"id":"details","role":"Inspect one case without leaving the list","capabilities":["overlay","details"]}
]}

python3 skills/frontend/jev-design/scripts/plan.py \
  --input brief.json --output /tmp/design-plan.json \
  --receipt /tmp/jev-design-receipt.json --css /tmp/design-theme.css

© notque, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 7 other files (scripts, references) in skills/frontend/jev-design of notque/vexjoy-agent.

• SKILL.md
• references/brief-writing.md
• references/catalog-v1.json
• references/catalog-v2.json
• references/decision-card.md
• references/visual-review.md
• scripts/plan.py
• tests/test_plan.py

Open the folder on GitHubat commit 5218674