What is stitch-mcp-auto AGENTS.md?

Installation and verification instructions for an MCP server that automates Google Stitch setup, including a browser-based sign-in step.

Use it when installing Stitch MCP Auto, completing OAuth, checking registration, or fixing a missing MCP entry.

It helps ensure the server is registered in Claude Code, Gemini CLI, or Codex CLI after installation.

How GreenSheep01201/stitch-mcp-auto configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to GreenSheep01201/stitch-mcp-auto. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/GreenSheep01201/stitch-mcp-auto/master/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/GreenSheep01201/stitch-mcp-auto

Made for: Codex, OpenCode.

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/instructions/greensheep01201/stitch-mcp-auto/agents-md/github.svg)](https://agentmods.dev/instructions/greensheep01201/stitch-mcp-auto/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/greensheep01201/stitch-mcp-auto/agents-md"><img src="https://agentmods.dev/badge/instructions/greensheep01201/stitch-mcp-auto/agents-md/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/instructions/greensheep01201/stitch-mcp-auto/agents-md"><img src="https://agentmods.dev/badge/instructions/greensheep01201/stitch-mcp-auto/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,073 This file is loaded in full into every session.

When invoked 1,073 The same file — it is already loaded in full.

Security scan B 1 finding. 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	$0.01073	$0.01073
Opus 5.5	$0.00429	$0.00429
Sonnet 5.5	$0.00215	$0.00215
Haiku 4.5	$0.00107	$0.00107

Measured 2mo ago against content hash 0b5611181a99, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

stitch-mcp-auto AGENTS.md scanned grade B with 1 finding 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 2mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

# Or check: cat ~/.codex/config.toml | grep stitch

AGENTS.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

🤖 AI Agent Installation Guide (IMPORTANT)

When installing this MCP server via GitHub link, you MUST verify MCP registration after setup completes.

Installation Steps

# 1. Run setup wizard
npx -p stitch-mcp-auto stitch-mcp-auto-setup

# 2. Complete OAuth in browser (manual step required)

# 3. CRITICAL: Verify MCP registration for your CLI

Post-Installation Verification (REQUIRED)

After setup completes, verify MCP server is registered:

Claude Code:

claude mcp list | grep stitch
# Expected: "stitch: ..." entry should appear

Gemini CLI:

gemini mcp list | grep stitch
# Expected: "stitch" entry should appear

Codex CLI:

codex mcp list | grep stitch
# Or check: cat ~/.codex/config.toml | grep stitch

If MCP Not Registered (Manual Fix)

If the verification fails, manually register:

Claude Code:

claude mcp add -e GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID -s user stitch -- npx -y stitch-mcp-auto

Gemini CLI:

gemini mcp add stitch -- npx -y stitch-mcp-auto --env GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID

Codex CLI:

codex mcp add stitch -- npx -y stitch-mcp-auto --env GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID

MCP Configuration Files

CLI	Config Location	Format
Claude Code	`~/.claude.json`	JSON
Gemini CLI	`~/.gemini/settings.json`	JSON
Codex CLI	`~/.codex/config.toml`	TOML

📝 Note: The setup wizard writes directly to config files (~/.claude.json, ~/.gemini/settings.json, ~/.codex/config.toml) without using CLI commands. Always verify registration after setup to ensure the configuration is correct.

Project Structure & Module Organization

Root-level Node CLI package. Entry points are index.js (MCP server), setup.js (web setup wizard), and auth.js (OAuth helper CLI).
skills/ contains bundled CLI skill files installed by the setup script for Claude/Gemini/Codex.
Docs live in README.md, README.ko.md, and ANTIGRAVITY-MODELS.md.
Runtime config and tokens are stored in ~/.stitch-mcp-auto/ (not in-repo).

Read the full file on GitHub · 104 lines

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.

2mo ago First seen · 104 lines · 1,073 tokens per session scan B 0b5611181a99

Subscribe to this mod's changes

stitch-mcp-auto AGENTS.md is an instructions file published in the GitHub repository GreenSheep01201/stitch-mcp-auto (31 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 1,073 tokens to every session, about $0.0043 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Browser automation automation claude codex gemini mcp mcp-client

stitch-mcp-auto AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
stitch-mcp-auto AGENTS.mdGreenSheep01201/stitch-mcp-auto	Instructions file	31	8mo ago	Apache-2.0	B	1,073	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

stitch-mcp-auto: Instructions file for Codex