What is stitch-design-bridge?

A bridge between UX planning and Google Stitch, a tool for quickly exploring AI-generated interface designs. It turns product, brand, accessibility, search, and implementation requirements into prompts and review criteria for Stitch.

Use it to prepare Stitch prompts, plan design variants, review Stitch outputs, and prepare designs for a later Figma or code implementation.

It gives Stitch clear constraints before visual exploration begins, reducing disconnected design ideas and making the results easier to evaluate.

stitch-design-bridge — Skill for Codex by sergekostenchuk

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.

Any agent

npx skills add sergekostenchuk/ui-ux-agent-skill-system --skill stitch-design-bridge

Clone the repo

git clone --depth 1 https://github.com/sergekostenchuk/ui-ux-agent-skill-system

Made for: Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge/github.svg)](https://agentmods.dev/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge)

Your own site

<a href="https://agentmods.dev/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge"><img src="https://agentmods.dev/badge/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge"><img src="https://agentmods.dev/badge/skills/sergekostenchuk/ui-ux-agent-skill-system/stitch-design-bridge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,397 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00104	$0.01397
Opus 5	$0.00052	$0.00698
Sonnet 5	$0.00021	$0.00279
Haiku 4.5	$0.00010	$0.00140

Measured 12d ago against content hash a1654709ca16, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

stitch-design-bridge 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/check_stitch_config.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

core/skills/stitch-design-bridge/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stitch Design Bridge

Use this skill as the Stitch layer in the UI/UX skill system. Stitch is an exploration accelerator, not the central architect, not the final design authority, and not the source of truth.

Role In The System

Default sequence for substantial UI projects:

task-plan-v2-orchestrator
-> ui-ux-llm-product-architect
-> seo-llm-site-architect when public discoverability matters
-> ui-ux-pro-max
-> stitch-design-bridge
-> senior-figma-orchestrator when Figma is involved
-> implementation specialist
-> validation
-> obsidian/wiki context capture for large projects

Stitch belongs after ui-ux-pro-max because Pro Max should define the design intelligence inputs: product type, style candidates, color/typography direction, UX risks, accessibility priorities, and stack guidance. Stitch then explores visual/screen variants under those constraints.

Operating Modes

brief: create a Stitch-ready prompt from project constraints.
variant-plan: define several Stitch exploration directions and success criteria.
review-output: critique Stitch outputs against UX, SEO/LLM, accessibility, brand, and implementation constraints.
figma-handoff: prepare Stitch output for senior-figma-orchestrator.
code-handoff: prepare Stitch output for local implementation.
config-check: check local Stitch API/MCP readiness without printing secrets.
council: run or prepare a senior UI/UX/SEO/LLM council decision when recommendations conflict.

Required Workflow

Read references/orchestration-contract.md before routing Stitch inside the broader system.
For prompt generation or output review, read references/prompt-quality-rubric.md.
For API, MCP, credentials, or external upload decisions, read references/safety-and-api.md.
Confirm inputs available:
- product/UX brief;
- SEO/LLM constraints when public pages are involved;
- ui-ux-pro-max recommendations;
- brand constraints and forbidden directions;
- target output: Stitch prompt, variants, Figma handoff, code handoff, or review.
If using an external Stitch service, record what data will be sent and require explicit approval for private project data.
Never include API keys, tokens, cookies, private URLs, private screenshots, or .env contents in prompts, reports, wiki pages, or task plans.
Treat Stitch output as a candidate artifact. It must be reviewed before Figma, code, or production use.

Read the full file on GitHub · 168 lines

Files

What ships with it

7 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.

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.

12d ago First seen · 168 lines · 104 tokens per session scan A a1654709ca16

Subscribe to this mod's changes

stitch-design-bridge is a skill published in the GitHub repository sergekostenchuk/ui-ux-agent-skill-system (23 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 104 tokens to every session and 1,397 once invoked, about $0.0005 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.

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