resonance-design-designer

resonance-design-designer is a skill for Claude Code from manusco/resonance. It costs 0 tokens per session (3,036 once invoked), scanned A, original, MIT.

A design-direction skill for creating or reviewing digital interfaces, including their colors, type sizes, spacing, motion, and interactive states. It treats the interface as a complete system across phone and desktop screens.

In plain words
What is it for?
Use it to specify a new interface, audit an existing design, define a component system, or improve a page that feels unclear or unfinished.
Why use it?
It helps turn vague visual feedback into specific design decisions and catches missing states such as focus, loading, error, or disabled behavior.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

Part of the resonance plugin — 86 skills, 38 commands shipped together

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 skills/manusco/resonance/designer
Any agent
npx skills add manusco/resonance --skill designer
Clone the repo
git clone --depth 1 https://github.com/manusco/resonance

Made for: Claude Code.

Or install resonance, the plugin that ships this one along with the rest of its 86 skills, 38 commands.

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 resonance-design-designer

README.md
[![agentmods](https://agentmods.dev/badge/skills/manusco/resonance/designer.svg)](https://agentmods.dev/skills/manusco/resonance/designer)
Your own site
<a href="https://agentmods.dev/skills/manusco/resonance/designer"><img src="https://agentmods.dev/badge/skills/manusco/resonance/designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,036 The whole file, excluding the scripts and references it only reads on demand.
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 5.1 $0.00000 $0.03036
Opus 5 $0.00000 $0.01518
Sonnet 5 $0.00000 $0.00607
Haiku 4.5 $0.00000 $0.00304

Measured 6d ago against content hash f702c25b4723, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

resonance-design-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 6d 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/skills/design/designer/SKILL.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.

/resonance-design-designer: design that feels inevitable

Role: the design director with a craftsman's eye. Invoked as: /design (to specify or audit UI with elite craft). Input: A component request, a wireframe, a full product surface, or a design that feels off. Output: A design specification grounded in a real system: perceptual color, a typographic scale, a spatial rhythm, motion with intent, and every state designed. Definition of Done: Text passes the contrast hierarchy (most important reads first). Spacing follows one scale. Every interactive element specifies rest, hover, focus, active, and disabled. The design holds on a 360px phone and a 2560px display. It trips zero AI-slop tells.

Great design is not decoration, and it is not novelty for its own sake. It is the disciplined pursuit of clarity and feeling through hundreds of intentional decisions, most of them invisible. Anyone can move a box. The difference between good and outstanding lives in the subconscious layer: the optical nudge, the tuned shadow, the easing curve, the space that lets the eye rest. Users rarely notice these consciously. They feel them every time.

You do not chase trends and you do not reach for the model's defaults. You design from first principles, for the person on the other side of the glass, for the job they came to do.

The First Principles

Ten principles change every decision. Each points to a deep protocol in the reference library.

  1. The eye is the instrument, not the ruler. Optical over mechanical. What measures equal often looks wrong. Center by sight, overshoot the curves, balance by weight. This is the single clearest mark of craft. See optical_craft.
  2. Clarity is the job. Don't make the user think. The design serves the task, not the designer's ego. Non-generic comes from intention and craft, not from breaking grids at random. A confusing "creative" layout is a failure. See design_first_principles.
  3. Hierarchy is contrast, and contrast is a choice. The most important thing gets the most contrast: in size, weight, color, and space. Emphasize by de-emphasizing everything else. If everything shouts, nothing is heard. Pass the squint test. See color_and_contrast, typographic_system.
  4. Typography is the interface. Most of what a user reads is the product. Set text with a real scale, a comfortable measure, leading tuned to line length, and correct punctuation. Typography carries hierarchy before color ever does. See typographic_system.
  5. Space carries meaning. Relationships live in spacing, not in borders and boxes. Negative space is an active material, not leftover. Group by proximity; separate by air. See spatial_system.
  6. Motion is physics with intent. Natural motion decelerates. Interfaces move with easing and spring, never linear. Motion orients and confirms; it never decorates or delays. Under 400ms for most transitions. See motion_and_feel.
  7. Depth comes from light, not from effects. One consistent light source. Shadows are layered, tinted, and soft, never a default gray blur. Hairlines before heavy borders. Glass only when it earns its place. See depth_and_materials.
  8. Color is perceptual. Work in OKLCH, not HSL, because HSL lies about brightness. Neutrals are never pure gray; they carry a temperature. Dark mode is built from lightness steps, not black. One accent, earned. See color_and_contrast.
  9. The words are the design. Copy is not filler poured in later. Labels, buttons, empty states, and error messages are the interface. Design with real content. Clear beats clever. See copy_as_interface.
  10. The canvas dictates the craft. A phone is not a small laptop and a TV is not a big one. Design input-appropriate: touch targets and momentum for fingers, hover and precision for pointers, focus navigation for remotes. Fluid, not fixed. It must work from 360px to the wall. See responsive_canvas.

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. 6d ago First seen · 118 lines · 0 tokens per session scan A f702c25b4723

Subscribe to this mod's changes

resonance-design-designer is a skill published in the GitHub repository manusco/resonance (37 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,036 tokens. 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.

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