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.
npx skills add PracticalSwan/agent-skills --skill stitch-manage-design-systemgit clone --depth 1 https://github.com/PracticalSwan/agent-skillsWrote 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.
[](https://agentmods.dev/skills/practicalswan/agent-skills/stitch-manage-design-system)<a href="https://agentmods.dev/skills/practicalswan/agent-skills/stitch-manage-design-system"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/stitch-manage-design-system/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/stitch-manage-design-system"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/stitch-manage-design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.01348 |
| Opus 5 | $0.00016 | $0.00674 |
| Sonnet 5 | $0.00007 | $0.00270 |
| Haiku 4.5 | $0.00003 | $0.00135 |
Grade A, and why
stitch-manage-design-system 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.
This is a copy
86% identical to stitch-design-md — 39 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stitch Manage Design System
This skill is a catalog-normalized import from https://github.com/google-labs-code/stitch-skills at commit 7b53207b94e62911777d53d4238b5f8c88c2b519, source path plugins/stitch-design/skills/manage-design-system. The upstream control file was corrected for this workspace: the verified Stitch MCP surface here is design-system oriented, so screen lookup, screen generation, and screen editing tools must be used only when the current host explicitly exposes them.
When to Use This Skill
- Use when
.stitch/DESIGN.mdshould become a Stitch design system or an existing design system should be listed or applied. - The task involves Google Stitch project IDs,
.stitch/artifacts, DESIGN.md files, Stitch exports, or Stitch-specific validation. - The broader
stitch-designrouter points here as the narrowest workflow.
Workflow
- Create or identify the target project; use
create_projectonly when a new project is appropriate. - Inspect
.stitch/DESIGN.mdfor project name, colors, type, shape, component, layout, and anti-pattern rules. - For small DESIGN.md files, base64-encode UTF-8 content and call
upload_design_mdwith the numeric project ID; for the bundled helper, pass--generated-bywith the calling skill or agent name. - Immediately call
create_design_system_from_design_mdwith the returned screen instanceidandsourceScreen. - Use
list_design_systemsto confirm the design-system asset exists for the project. - Use
apply_design_systemonly with valid selected screen instanceidandsourceScreenvalues.
Local Assets
examples/,resources/,references/, orreference/are upstream support material when present. TreatSKILL.mdas the source of truth if a support file mentions an unavailable MCP tool.scripts/are optional helpers. On Windows, prefer PowerShell or Node equivalents unless Git Bash or WSL is actually available.- Keep generated
.stitch/files out of commits unless the user explicitly wants them as durable examples.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago Changed 2a8a84b8ca4e
- 6d ago Changed a7a7f249be87
- 9d ago First seen · 89 lines · 33 tokens per session scan A 161e5d76b39b
stitch-manage-design-system is a skill published in the GitHub repository PracticalSwan/agent-skills (14 stars, last pushed 5d ago), licensed MIT. It adds 33 tokens to every session and 1,348 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to stitch-design-md, differing in 39 lines, and is treated as a copy.
Other skills, from other repositories
design-md
Author/validate/export Google's DESIGN.md token spec files.
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Document and define UI design system tokens, components, and guidelines.
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Extract design information from Figma files. Pull design tokens, component structure, colors, typography, spacing, and export assets. Use when the user asks about their Figma designs, needs to extract design tokens, or wants to convert Figma designs to code. Triggers on: "figma", "design tokens", "get colors from…
suanfish-design-system
A Chinese design system for creating and reviewing web interfaces, with multiple design perspectives working together. It focuses on React and Tailwind-based projects.
design
Use when the user wants the visual/experiential design of a product done systematically — a design system, a screen, a landing page, or a visual identity — grounded in researched real-world prior art and free of AI slop. Establishes/extends the design system, invokes the matching local taste skill, dispatches the…