Agent Native

site-md

This skill analyzes project briefs and generates a .stitch/SITE.md constitution file that documents the project's identity, visual direction, architecture…

by GoogleOfficial publisher

Identity proven by GitHub's verified organisation badge (flutter, google)

Agents
Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode, claude.ai and API
License
Apache-2.0 (permissive)
Pin
0337446pinned Oct 9, 2026
Context cost
about 730 tokenswhen the skill loads
GitHub stars
8,442on google-labs-code/stitch-skills
Scripts
None found

What it does

“Analyze a project description or site requirements and synthesize a project constitution into SITE.md for the Stitch Build Loop”
The author's description, from SKILL.md

Generated summary from the skill's own text

This skill analyzes project briefs and generates a .stitch/SITE.md constitution file that documents the project's identity, visual direction, architecture, sitemap, and roadmap backlog for the Stitch Build Loop. It extracts core requirements like mission, target audience, voice, visual aesthetics, and development priorities into a structured long-term memory file for coding agents.

When to use it

  • Initialize a new Stitch project and establish its constitution document
  • Document project scope, visual direction, and priorities from requirements briefs
  • Onboard new coding agents to a project's direction and planned features
  • Organize and prioritize development tasks across high, medium, and low priority tiers

When not to

  • Project already has a validated SITE.md file in place
  • Rapid prototyping where formal documentation would slow iteration
  • Projects without clear requirements or visual direction yet defined

Install

These commands install from the publisher's repository and need no account.

skills CLI

npx skills add google-labs-code/stitch-skills --skill site-md

Installs from the repository's default branch, which may have changed since the commit we checked.

GitHub CLI 2.90 or later

gh skill install google-labs-code/stitch-skills site-md@0337446dadde6f8c94210444e2aa9d546126480f

Installs the commit we checked (0337446).

Copy by hand

Download the folder at 0337446 and put it in .claude/skills/site-md for Claude Code and in .agents/skills/site-md for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.

Skill folder on GitHub at 0337446

Claude Code plugin

/plugin install chrome-devtools-mcp@claude-plugins-official

The publisher's plugin in Claude's official marketplace. It may hold more than this skill, and we have not pinned it.

Claude Code plugin

/plugin install alloydb-omni@claude-plugins-official

The publisher's plugin in Claude's official marketplace. It may hold more than this skill, and we have not pinned it.

Claude Code plugin

/plugin install bigquery-data-analytics@claude-plugins-official

The publisher's plugin in Claude's official marketplace. It may hold more than this skill, and we have not pinned it.

Copy for your agent

A prompt for any coding agent. It installs this skill from GitHub at the pinned commit, copies the files as they are, and runs nothing unless you ask.

Prompt

Install the agent skill "site-md" by Google.

Source, pinned to commit 0337446dadde6f8c94210444e2aa9d546126480f:
https://github.com/google-labs-code/stitch-skills/tree/0337446dadde6f8c94210444e2aa9d546126480f/plugins/stitch-utilities/skills/site-md

1. Download that folder at exactly this commit. Do not use the default branch.
2. Copy every file unchanged, keeping the folder structure, into .claude/skills/site-md/ for Claude Code and .agents/skills/site-md/ for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. Create the folders if they do not exist.
3. Do not edit the files, and do not run any script in the folder unless I ask you to.
4. When you are done, list the files you copied and where you put them.

Listing and checks: https://www.agentnative.dev/skills/google/site-md

SKILL.md at the pin

---
name: site-md
description: Analyze a project description or site requirements and synthesize a project constitution into SITE.md for the Stitch Build Loop
allowed-tools:
  - "Read"
  - "Write"
  - "web_fetch"
---

# Stitch SITE.md Skill

You are a Lead Product Owner and Architect. Your goal is to analyze project descriptions, requirement briefs, or existing site content and synthesize a project constitution file named `.stitch/SITE.md`.

## Overview

This skill helps you initialize and structure `.stitch/SITE.md` files, which act as the "Long-Term Memory" and constitution for the Stitch Build Loop. A properly structured `SITE.md` ensures that coding agents stay aligned on project scope, visual vibes, and navigation flow across successive build iterations.

## Prerequisites

- Access to a project requirements brief or description document.
- Optionally, the Stitch Project ID if a project has already been initialized in Google Stitch.

## The Goal

Generate a `.stitch/SITE.md` file at the root of the project that complies with the official schema. It must cover:
1. Core Identity (Name, Mission, Voice).
2. Visual Language Vibe.
3. Architecture & File Structure.
4. Sitemap (Current and target pages).
5. Roadmap Backlog (High, Medium, Low priority tasks).
6. Creative Freedom Guidelines.

## Guidelines and Structure

Analyze the input brief and translate it into the following sections:

### 1. Core Identity
- **Project Name**: Extracted from requirements.
- **Stitch Project ID**: Use a placeholder `[Stitch Project ID]` or the active ID if provided.
- **Mission**: A 1-2 sentence description of what the application/site does.
- **Target Audience**: Who the main users are.
- **Voice**: Tone adjectives (e.g. professional, playful, clean).

### 2. Visual Language
- **Vibe (Adjectives)**: Define a primary, secondary, and tertiary aesthetic keyword matching the project's visual direction.

### 3. Architecture & File Structure
- Map out the directory structure. Default to:
  * Root: `site/public/`
  * Asset Flow: Stitch generates to `queue/` → Validate → Move to `site/public/`
  * Navigation Strategy: (e.g., standard header links, shared navigation bar).

### 4. Live Sitemap
- Map out the files requested in the brief. Mark completed files as `[x]` and pending/target files as `[ ]`. At initialization, at least `index.html` should be listed.

### 5. The Roadmap (Backlog)
- Parse the requirements into concrete development tasks, grouped by priority:
  - **High Priority**: Core pages, basic layouts, primary user flows.
  - **Medium Priority**: Interactive features, forms, secondary pages.
  - **Low Priority**: Enhancements, visual assets, optional states.

---

## Action Plan

1. **Read input requirements**: Locate and read the project description document or text input.
2. **Draft the structure**: Map the project details directly into the `SITE.md` format.
3. **Write the file**: Write the output to `.stitch/SITE.md`. If the `.stitch/` directory does not exist, create it first.
4. **Validate**: Verify that all seven sections of the `SITE.md` template are present and properly formatted.

From google-labs-code/stitch-skills at 0337446, shown as plain text under its license: Apache-2.0 (permissive). The license text is in LICENSE.

View SKILL.md on GitHub at 0337446

Files

1 file, 3.1 KB in total. Each file has a sha256 in the pin's manifest; the first 12 characters are shown.

Skill folder on GitHub at 0337446
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