apple-notes-mcp CLAUDE.md

apple-notes-mcp CLAUDE.md is an instructions file for coding agents from sweetrb/apple-notes-mcp. It costs 3,509 tokens per session, scanned A, original, MIT.

Project instructions for an Apple Notes server that lets an AI assistant work with notes stored locally on macOS.

In plain words
What is it for?
It guides agents when creating or updating Apple Notes and explains how to escape backslashes correctly.
Why use it?
It prevents failed note operations caused by incorrect handling of backslashes in JSON messages.

Instructions file

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.

agentmods
npx agentmods add instructions/sweetrb/apple-notes-mcp/claude-md
Clone the repo
git clone --depth 1 https://github.com/sweetrb/apple-notes-mcp

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.

agentmods badge for apple-notes-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/sweetrb/apple-notes-mcp/claude-md.svg)](https://agentmods.dev/instructions/sweetrb/apple-notes-mcp/claude-md)
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<a href="https://agentmods.dev/instructions/sweetrb/apple-notes-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/sweetrb/apple-notes-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,509 This file is loaded in full into every session.
When invoked 3,509 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.03509 $0.03509
Opus 5 $0.01754 $0.01754
Sonnet 5 $0.00702 $0.00702
Haiku 4.5 $0.00351 $0.00351

Measured 5d ago against content hash 11832e538cec, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

apple-notes-mcp CLAUDE.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 5d 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.

CLAUDE.md · 247 lines

How it starts

The opening of the file, as written. The whole thing — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - Apple Notes MCP Server

This file provides guidance for AI agents (Claude, etc.) when using this MCP server.

Overview

This MCP server enables AI assistants to interact with Apple Notes on macOS via AppleScript. All operations are local - no data leaves the user's machine.

  • TECHNICAL_NOTES.md - Deep technical research on Apple Notes internals, database structure, protobuf format, and alternative access methods
  • TODO.md - Prioritized improvement roadmap with stability fixes and new features

Critical: Backslash Escaping

When sending content with backslashes to any tool, you MUST escape them.

The MCP protocol uses JSON for parameters. In JSON, \ is an escape character. To include a literal backslash:

You want Send in JSON parameter
\ \\
\\ \\\\
Mobile\ Documents Mobile\\ Documents

Why This Matters

If you send a single backslash without escaping:

  • The JSON parser interprets \ as an escape sequence
  • Invalid sequences like \ (backslash-space) cause silent failures
  • The note creation/update will fail with no clear error

Examples

Correct - Shell command with escaped space:

content: "cp ~/Library/Mobile\\ Documents/file.txt ~/dest/"

→ arrives as: cp ~/Library/Mobile\ Documents/file.txt ~/dest/

Correct - Regex pattern:

content: "Version pattern: \\d+\\.\\d+"

→ arrives as: Version pattern: \d+\.\d+

Correct - Literal double backslash:

content: "In a JSON string, one backslash is written \\\\"

→ arrives as: In a JSON string, one backslash is written \\

(One \\ per literal backslash, exactly as in the shell example above. \\\\ is the escaping for a literal double backslash — see the table's second row — so sending \\\\ where you mean a single backslash stores two of them.)

Incorrect - Will fail:

content: "cp ~/Library/Mobile\ Documents/file.txt ~/dest/"

Read the full file on GitHub · 247 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.

  1. 5d ago First seen · 247 lines · 3,509 tokens per session scan A 11832e538cec

Subscribe to this mod's changes

apple-notes-mcp CLAUDE.md is an instructions file published in the GitHub repository sweetrb/apple-notes-mcp (110 stars, last pushed yesterday), licensed MIT. It adds 3,509 tokens to every session, about $0.0175 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.

Related

Other instructions, from other repositories