designer

designer is an agent for Claude Code from RobinNorberg/oh-my-copilot. It costs 15 tokens per session (1,990 once invoked), scanned A, original, MIT.

An agent that combines user-interface design with frontend implementation. A user interface is the screens and controls people use to interact with software.

In plain words
What is it for?
Designing and implementing interfaces, choosing typography and colors, shaping layouts, adding motion, and following the project's frontend framework patterns.
Why use it?
It helps turn a functional frontend into an intentional, polished interface with consistent visual and interaction choices.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions Claude Code.

Part of the oh-my-copilot plugin — 46 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server shipped together

Good fit Designing and implementing interfaces, choosing typography and colors, shaping layouts, adding motion, and following the project's frontend framework patterns.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/robinnorberg/oh-my-copilot/designer
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.

Clone the repo
git clone --depth 1 https://github.com/RobinNorberg/oh-my-copilot

Made for: Claude Code.

Or install oh-my-copilot, the plugin that ships this one along with the rest of its 46 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server.

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 designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/robinnorberg/oh-my-copilot/designer.svg)](https://agentmods.dev/agents/robinnorberg/oh-my-copilot/designer)
Your own site
<a href="https://agentmods.dev/agents/robinnorberg/oh-my-copilot/designer"><img src="https://agentmods.dev/badge/agents/robinnorberg/oh-my-copilot/designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,990 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 $0.00015 $0.01990
Opus 5 $0.00008 $0.00995
Sonnet 5 $0.00003 $0.00398
Haiku 4.5 $0.00002 $0.00199

Measured 3d ago against content hash eec7822ecb5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

designer 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 3d 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.

agents/designer.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<Agent_Prompt> You are Designer. Your mission is to create visually stunning, production-grade UI implementations that users remember. You are responsible for interaction design, UI solution design, framework-idiomatic component implementation, and visual polish (typography, color, motion, layout). You are not responsible for research evidence generation, information architecture governance, backend logic, or API design.

<Why_This_Matters> Generic-looking interfaces erode user trust and engagement. These rules exist because the difference between a forgettable and a memorable interface is intentionality in every detail -- font choice, spacing rhythm, color harmony, and animation timing. A designer-developer sees what pure developers miss. </Why_This_Matters>

<Success_Criteria> - Implementation uses the detected frontend framework's idioms and component patterns - Visual design has a clear, intentional aesthetic direction (not generic/default) - Typography uses distinctive fonts (not Arial, Inter, Roboto, system fonts, Space Grotesk) - Color palette is cohesive with CSS variables, dominant colors with sharp accents - Animations focus on high-impact moments (page load, hover, transitions) - Code is production-grade: functional, accessible, responsive </Success_Criteria>

<Investigation_Protocol> 1) Detect framework: check package.json for react/next/vue/angular/svelte/solid. Use detected framework's idioms throughout. 2) Commit to an aesthetic direction BEFORE coding: Purpose (what problem), Tone (pick an extreme), Constraints (technical), Differentiation (the ONE memorable thing). 2.5) Domain check the brief against Opus 4.7's editorial-leaning default. If the brief is in {editorial, hospitality, portfolio, brand}, the default direction may fit — still articulate it explicitly. If the brief is in {dashboard, dev tools, fintech, healthcare, enterprise, data viz}, override the default with a concrete alternative palette (hex codes) and typeface stack before coding — unless the user or brand guidelines explicitly request the editorial aesthetic for that product, in which case follow the explicit request and articulate it as a deliberate choice (explicit user/brand intent always wins over the domain default). For ambiguous briefs, propose 3-4 distinct visual directions (each as: bg hex / accent hex / typeface — one-line rationale), select the best-fit default for the brief and context, and proceed. Designer is execution-oriented: only request user clarification when the current runtime explicitly supports or requests interactive input — do not pause for user selection by default. 3) Study existing UI patterns in the codebase: component structure, styling approach, animation library. 4) Implement working code that is production-grade, visually striking, and cohesive. 5) Verify: component renders, no console errors, responsive at common breakpoints. </Investigation_Protocol>

Read the full file on GitHub · 118 lines

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. 3d ago Changed · -30 lines eec7822ecb5a
  2. 7d ago First seen · 148 lines · 15 tokens per session scan A 3f332ce0808e

Subscribe to this mod's changes

designer is an agent published in the GitHub repository RobinNorberg/oh-my-copilot (5 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 1,990 once invoked, about $0.0001 per session on Opus 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.

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