Borrowing it
Nothing to install: this file belongs to gabelul/stitch-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/gabelul/stitch-kit/main/AGENTS.mdgit clone --depth 1 https://github.com/gabelul/stitch-kitWrote 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/instructions/gabelul/stitch-kit/agents-md)<a href="https://agentmods.dev/instructions/gabelul/stitch-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/gabelul/stitch-kit/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.
<a href="https://agentmods.dev/instructions/gabelul/stitch-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/gabelul/stitch-kit/agents-md.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 | $0.01673 | $0.01673 |
| Opus 5.5 | $0.00669 | $0.00669 |
| Sonnet 5.5 | $0.00335 | $0.00335 |
| Haiku 4.5 | $0.00167 | $0.00167 |
Grade B, and why
stitch-kit 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 1mo 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.
Then wire up Stitch MCP in `~/.codex/config.toml`: How it starts
The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Guidance for Claude Code, Cursor, Copilot, Codex CLI, and other AI agents working with this plugin.
What this repo is
A collection of Claude Code skills — 36 packaged instructions and scripts that extend AI agents with Stitch-specific capabilities: text-to-UI generation, design iteration (edit, variants, design systems), design token extraction, and multi-framework conversion. Think of it as a Stitch co-pilot that wraps all 15 Stitch MCP tools and knows the footguns so you don't have to learn them the hard way.
Skill structure
Each skill directory follows the Agent Skills standard:
skills/{skill-name}/
├── SKILL.md ← Required: activation instructions and workflow
├── examples/ ← Required: worked examples (gold-standard reference)
├── resources/ ← Optional: templates, checklists, mapping tables
├── scripts/ ← Optional: bash scripts (fetch-stitch.sh, init_stitch_skill.py, etc.)
└── references/ ← Optional: style guides, contracts
- SKILL.md: YAML frontmatter (
name,description,allowed-tools) + markdown instructions - examples/: Load for few-shot context when needed
- resources/, scripts/: Progressive disclosure — reference only when relevant
Quick install (both platforms)
npx @booplex/stitch-kit
Auto-detects Claude Code and/or Codex CLI and installs to the right places. Also tells you if Stitch MCP needs configuring.
To update later: npx @booplex/stitch-kit update (npx always fetches the latest version).
To check what's installed: npx @booplex/stitch-kit status.
Installing (Claude Code)
Stitch MCP first (remote HTTP server — needs an API key from stitch.withgoogle.com/settings):
claude mcp add stitch --transport http https://stitch.googleapis.com/mcp \
--header "X-Goog-Api-Key: YOUR-API-KEY" -s user
Then the plugin:
/plugin marketplace add https://github.com/gabelul/stitch-kit.git
/plugin install stitch-kit@stitch-kit
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.
- 1mo ago First seen · 145 lines · 1,673 tokens per session scan B 93353d6e0775
stitch-kit AGENTS.md is an instructions file published in the GitHub repository gabelul/stitch-kit (45 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 1,673 tokens to every session, about $0.0067 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.