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-generate-designgit 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-generate-design)<a href="https://agentmods.dev/skills/practicalswan/agent-skills/stitch-generate-design"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/stitch-generate-design/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-generate-design"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/stitch-generate-design.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 | $0.00030 | $0.01302 |
| Opus 5 | $0.00015 | $0.00651 |
| Sonnet 5 | $0.00006 | $0.00260 |
| Haiku 4.5 | $0.00003 | $0.00130 |
Grade A, and why
stitch-generate-design 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.
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 Generate Design
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/generate-design. 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 the user wants to generate, edit, or vary Stitch screens from text, screenshots, or mockups.
- 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
- Check the active host tool list. In this workspace, verified Stitch MCP tools cover project creation and design systems, not screen generation or editing.
- If screen generation/edit tools are present, use them and record the exact tool names.
- If those tools are absent, prepare the enhanced prompt for the Stitch web UI or another approved Stitch client.
- Before generation, run
stitch-enhance-promptand avoid duplicating project-level colors and fonts when a design system exists. - Use
stitch-manage-design-systemfirst when the project needs a consistent design system. - Save returned or exported HTML/screenshots under
.stitch/designs/and update.stitch/metadata.json.
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.
Corrected Stitch MCP Surface
What ships with it
5 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 bbfca4570793
- 6d ago Changed af0f9ad4faed
- 9d ago First seen · 89 lines · 30 tokens per session scan A d69a18433167
stitch-generate-design is a skill published in the GitHub repository PracticalSwan/agent-skills (14 stars, last pushed 4d ago), licensed MIT. It adds 30 tokens to every session and 1,302 once invoked, about $0.0002 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 2026-09-03.
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