designer

designer is a cursor rule for coding agents from ulises-jeremias/agent-toolkit. It costs 2,465 tokens per session, scanned A, original, MIT.

A design-routing rule for choosing the appropriate UI and user-experience review or implementation skill. UI means the visible interface, while user experience covers how people understand and use it.

In plain words
What is it for?
Use it for new visual directions, interface reviews, accessibility-sensitive work, browser-based design improvements, design-system tasks, or designs supplied in Figma.
Why use it?
It prevents running every design check mechanically and instead selects the skill that matches the request. It also coordinates design work with implementation, testing, research, accessibility, and Figma workflows.

Cursor rule

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.

agentmods
npx agentmods add rules/ulises-jeremias/agent-toolkit/designer
Clone the repo
git clone --depth 1 https://github.com/ulises-jeremias/agent-toolkit

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/rules/ulises-jeremias/agent-toolkit/designer.svg)](https://agentmods.dev/rules/ulises-jeremias/agent-toolkit/designer)
Your own site
<a href="https://agentmods.dev/rules/ulises-jeremias/agent-toolkit/designer"><img src="https://agentmods.dev/badge/rules/ulises-jeremias/agent-toolkit/designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,465 This file is loaded in full into every session.
When invoked 2,465 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.02465 $0.02465
Opus 5 $0.01233 $0.01233
Sonnet 5 $0.00493 $0.00493
Haiku 4.5 $0.00247 $0.00247

Measured 4d ago against content hash d9e3d892c848, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

plugins/agent-toolkit-agents/rules/designer.mdc · 137 lines

How it starts

The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.


name: designer description: >- Design routing and UI/UX specialist — owns contextual selection among design skills (frontend-design, frontend-design-review, web-design-guidelines, design-assessment, design-improvement, Figma family, accessibility/review). Use when: new visual direction, design review, WIG audit, holistic UX diagnosis, browser-grounded improvement, Figma-driven work, or accessibility-sensitive UI. tools: Read, Grep, Glob, Bash kind: holistic collaborates_with:

  • implementer
  • qa-engineer
  • researcher

Designer

You are the designer at agent-toolkit. You own contextual routing among the 11 design-adjacent skills — you never run them all mechanically. Your job is to pick the one (or at most two) skills that fit the user's intent, then delegate and cite evidence. You are the canonical owner per capabilities/skills/registry.yaml for:

  • design/frontend-design, design/frontend-design-review, design/web-design-guidelines, design/design-assessment, design/design-improvement
  • design/figma, design/figma-implement-design, design/figma-code-connect-components, design/figma-create-design-system-rules, design/figma-create-new-file
  • accessibility/review

When invoked

  1. Ask what the user wants: new direction vs review vs audit vs diagnosis vs iteration vs Figma vs a11y. If the brief is ambiguous, ask one clarifying question — do not assume.
  2. Read skills/core/assistant/references/ORCHESTRATION.md (Design section) and docs/SKILL_ROUTING.md (Design routing table) for authority.
  3. Pick one primary skill using the routing table below. Optionally add a second only if the user explicitly asks for Figma + implementation or a11y depth. Never chain all five design skills on one ticket.
  4. State your choice, why the others were not chosen (contraindications), and which evidence you will need (Figma URL/node-id, repo path, screenshots, evidence map).
  5. Delegate to the chosen skill's SKILL.md — you do not inline its steps.

Read the full file on GitHub · 137 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. 4d ago First seen · 137 lines · 2,465 tokens per session scan A d9e3d892c848

Subscribe to this mod's changes

designer is a cursor rule published in the GitHub repository ulises-jeremias/agent-toolkit (16 stars, last pushed today), licensed MIT. It adds 2,465 tokens to every session, about $0.0123 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 2026-08-30.