design-md: Design & UI for AI Agents | OpenAgentSkill

Overview

DESIGN.md — portable visual system contract

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DESIGN.md — portable visual system contract

Use this skill when a task touches Google Stitch's DESIGN.md format or the project explicitly references its design system / design tokens. The skill loads only when DESIGN.md exists at the project root (see preconditions above), so general UI / frontend / component work that isn't tied to a DESIGN.md won't trip it.

Source of truth

DESIGN.md is a contract file. Read it before changing visual UI.
Treat YAML front matter tokens as normative values: colors, typography, spacing, radius, and component tokens are exact inputs to code.
Treat the Markdown body as design rationale: it explains mood, hierarchy, interaction intent, and where tokens should or should not be used.
If no DESIGN.md exists this skill is inactive; for new UI, offer to create one or ask for a brand/reference, but don't generate one unprompted.

Default: read-only

Do not modify DESIGN.md unless the user explicitly asks for a design system change. Implementation work consumes the contract; it does not edit it. Token additions, renames, or section restructures land in their own commit with a clear message and (ideally) a Stitch round-trip.

Implementation rules

Map tokens into the local styling system already in use: CSS variables, Tailwind theme values, design-token JSON, component props, or native styles.
Use token references and component patterns from DESIGN.md instead of hard-coded one-off values.
Keep accessibility constraints intact. Do not weaken contrast, focus, reduced-motion, or touch-target guidance unless the user explicitly asks.

When an edit IS authorised

Preserve unknown headings and extra prose; other agents or Stitch may own them.
Express component variants as related entries (button-primary, button-primary-hover, etc.).
Land token / structure changes in their own commit, separate from the feature consuming them.

Validation

If Node/npm tooling is available, lint with:
```
npx @google/design.md lint DESIGN.md
```

For design system changes, diff before/after:

npx @google/design.md diff DESIGN.before.md DESIGN.md

If the CLI is unavailable or network/dependency policy blocks it, the manual fallback is best-effort only — check for broken {path.to.token} references, missing primary color / typography tokens, duplicate section headings, and section order. The CLI ALSO checks contrast ratios and orphaned tokens; the manual fallback does not, so re-run the CLI when you regain network access.

Expected sections

The Google draft spec uses YAML front matter plus Markdown sections. Common sections:

## Overview
## Colors
## Typography
## Layout
## Elevation & Depth
## Shapes
## Components
## Do's and Don'ts

Self-rewrite hook

After every 5 uses OR on any failure:

Read the last N skill-specific episodic entries.
If a new failure mode has appeared (e.g. tokens drifting away from DESIGN.md, accessibility rules being weakened, unauthorised edits to the contract file), append it to this skill's KNOWLEDGE.md.
If a constraint was violated, escalate to semantic/LESSONS.md.
Commit: skill-update: design-md, <one-line reason>.

View source ↗

File metadata

name: design-md
version: 2026-04-26
triggers: ["DESIGN.md", "design.md", "Google Stitch", "Stitch", "design tokens", "design system", "visual design"]
tools: [bash, memory_reflect]
preconditions: ["DESIGN.md exists at project root"]
constraints: ["prefer DESIGN.md tokens over invented values", "do not modify DESIGN.md unless the user explicitly asks", "preserve unknown sections when an edit IS authorised", "validate when tooling is available"]

View original text

---
name: design-md
version: 2026-04-26
triggers: ["DESIGN.md", "design.md", "Google Stitch", "Stitch", "design tokens", "design system", "visual design"]
tools: [bash, memory_reflect]
preconditions: ["DESIGN.md exists at project root"]
constraints: ["prefer DESIGN.md tokens over invented values", "do not modify DESIGN.md unless the user explicitly asks", "preserve unknown sections when an edit IS authorised", "validate when tooling is available"]
---

# DESIGN.md — portable visual system contract

Use this skill when a task touches Google Stitch's `DESIGN.md` format or
the project explicitly references its design system / design tokens. The
skill loads only when `DESIGN.md` exists at the project root (see
`preconditions` above), so general UI / frontend / component work that
isn't tied to a `DESIGN.md` won't trip it.

## Source of truth
- `DESIGN.md` is a contract file. Read it before changing visual UI.
- Treat YAML front matter tokens as normative values: colors, typography,
spacing, radius, and component tokens are exact inputs to code.
- Treat the Markdown body as design rationale: it explains mood, hierarchy,
interaction intent, and where tokens should or should not be used.
- If no `DESIGN.md` exists this skill is inactive; for new UI, offer to
create one or ask for a brand/reference, but don't generate one
unprompted.

## Default: read-only
**Do not modify `DESIGN.md` unless the user explicitly asks for a design
system change.** Implementation work consumes the contract; it does not
edit it. Token additions, renames, or section restructures land in their
own commit with a clear message and (ideally) a Stitch round-trip.

## Implementation rules
1. Map tokens into the local styling system already in use: CSS variables,
Tailwind theme values, design-token JSON, component props, or native
styles.
2. Use token references and component patterns from `DESIGN.md` instead of
hard-coded one-off values.
3. Keep accessibility constraints intact. Do not weaken contrast, focus,
reduced-motion, or touch-target guidance unless the user explicitly
asks.

## When an edit IS authorised
1. Preserve unknown headings and extra prose; other agents or Stitch may
own them.
2. Express component variants as related entries
(`button-primary`, `button-primary-hover`, etc.).
3. Land token / structure changes in their own commit, separate from the
feature consuming them.

## Validation
- If Node/npm tooling is available, lint with:

```bash
npx @google/design.md lint DESIGN.md
```

- For design system changes, diff before/after:

```bash
npx @google/design.md diff DESIGN.before.md DESIGN.md
```

- If the CLI is unavailable or network/dependency policy blocks it, the
manual fallback is best-effort only — check for broken `{path.to.token}`
references, missing primary color / typography tokens, duplicate section
headings, and section order. The CLI ALSO checks contrast ratios and
orphaned tokens; the manual fallback does not, so re-run the CLI when
you regain network access.

## Expected sections
The Google draft spec uses YAML front matter plus Markdown sections.
Common sections:

- `## Overview`
- `## Colors`
- `## Typography`
- `## Layout`
- `## Elevation & Depth`
- `## Shapes`
- `## Components`
- `## Do's and Don'ts`

## Self-rewrite hook
After every 5 uses OR on any failure:
1. Read the last N skill-specific episodic entries.
2. If a new failure mode has appeared (e.g. tokens drifting away from
DESIGN.md, accessibility rules being weakened, unauthorised edits to
the contract file), append it to this skill's `KNOWLEDGE.md`.
3. If a constraint was violated, escalate to `semantic/LESSONS.md`.
4. Commit: `skill-update: design-md, <one-line reason>`.

Review the source

Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

License: Apache-2.0

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

Open full audit

Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.

Start with one small task

1Read the source. Confirm the input, expected output, dependencies and permissions.
2Ask your agent for a plan. Approve setup and any costs before running a small isolated test.
3Check the output and changed files. Report only what actually ran; keep the source revision for reproduction.

Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.

Source & usage notes

Indexed

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: codejunkie99/agentic-stack
License: Apache-2.0
Version: 1.0.0
Last GitHub push: Aug 6, 2026
Registry updated: Sep 2, 2026
Instruction path: .agent/skills/design-md/SKILL.md @ 9424c58e1cfc

Version reported in registry metadata; check source releases before relying on it.

Quality

77/100

Strong

Trust

66/100

Agent access

This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.

Open install API LLM text format Open manifest Auto-resolve Plan

More details

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}

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Creator: codejunkie99
Source: codejunkie99/agentic-stack
Indexed by: OpenAgentSkill community index

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Overview

DESIGN.md — portable visual system contract

Source of truth

Default: read-only

Implementation rules

When an edit IS authorised

Validation

Expected sections

Self-rewrite hook

Review the source

Start with one small task

Source & usage notes

Agent access

Related skills

For the creator

Registry indexed

Claim this skill listing

Add the evidence badges to your README

Community signal