Borrowing it
Nothing to install: this file belongs to l22-io/orchard-mcp. 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/l22-io/orchard-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/l22-io/orchard-mcpWrote 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/l22-io/orchard-mcp/agents-md)<a href="https://agentmods.dev/instructions/l22-io/orchard-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/l22-io/orchard-mcp/agents-md.svg" alt="Measured on agentmods" 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 | $0.01000 | $0.01000 |
| Opus 5 | $0.00500 | $0.00500 |
| Sonnet 5 | $0.00200 | $0.00200 |
| Haiku 4.5 | $0.00100 | $0.00100 |
Grade A, and why
orchard-mcp AGENTS.md 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 8d 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides repository guidance for coding agents working in this repository.
Project Overview
orchard-mcp is an MCP (Model Context Protocol) server that exposes macOS system services and apps (Calendar, Mail, Reminders, Files, Numbers, Pages, Keynote, Notes, Contacts) to MCP clients. It uses a two-layer architecture: a TypeScript MCP server communicates over stdio JSON-RPC, and delegates to a native Swift CLI binary (apple-bridge) that talks to macOS frameworks (EventKit, Contacts, PDFKit, Vision, etc.) and apps via AppleScript/JXA.
Commands
npm run build # Build both Swift binary + TypeScript
npm run build:ts # TypeScript only
npm run build:swift # Swift binary only
npm run dev # TypeScript watch mode
npm test # All tests (node:test via tsx)
npx tsx --test tests/bridge.test.ts # Single test file
npm run lint # Type-check (tsc --noEmit)
npm start # Run the MCP server
Architecture
MCP Client (stdio JSON-RPC) -> TypeScript Server (Node.js) -> Swift CLI (apple-bridge) -> macOS Frameworks
Entry point: src/index.ts creates McpServer, registers tools from 10 modules, connects StdioServerTransport, and handles the orchard-mcp setup subcommand before server startup.
Bridge layer: src/bridge.ts executes the Swift binary, parses the {status, data, error} JSON envelope, and automatically retries via the .app bundle on "access denied" errors required for some macOS TCC permissions. bridgeData(args) is the convenience wrapper that throws on error.
Tool modules: src/tools/*.ts each exports a register*Tools(server) function. Tools use server.tool(name, description, zodSchema, asyncHandler). Tool names are namespaced: calendar.*, mail.*, reminders.*, files.*, system.*, numbers.*, pages.*, keynote.*, notes.*, contacts.*. 65 tools total.
App Safety: Tool modules must call safeBridgeData(args, OPERATION_PROFILES.<profile>) from src/safety.ts, not bridgeData directly. The safety layer serializes host-app lanes, applies queue/time/output budgets, and refuses broad requests before they can make Mail.app or other apps unresponsive. Keep docs/app-safety-audit.md current when changing tool scope, timeouts, result limits, or app automation.
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.
- 8d ago First seen · 64 lines · 1,000 tokens per session scan A 9c88de8ecb29
orchard-mcp AGENTS.md is an instructions file published in the GitHub repository l22-io/orchard-mcp (18 stars, last pushed 2mo ago), licensed MIT. It adds 1,000 tokens to every session, about $0.0050 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.
Other instructions, from other repositories
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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.