mailnotmilk: Instructions file for Claude Code

CLAUDE.md

mailnotmilk CLAUDE.md is an instructions file for Claude Code from jrb00013/mailnotmilk. It costs 105 tokens per session, scanned A, original, MIT.

A repository instruction file for Claude Code in the mailnotmilk project. It explains how to install the project and connect browser-based AI chats with coding agents.

In plain words
What is it for?
Use it when developing or operating mailnotmilk, including browser relays, shared chats, and communication between ChatGPT, DeepSeek, Gemini, Claude Code, Cursor, or OpenCode.
Why use it?
It gives the coding assistant the project-specific commands and communication rules needed to use the bridge correctly. This avoids asking users to copy messages manually or using the wrong connection method.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions Claude Code; mentions OpenCode.

This is jrb00013/mailnotmilk's own configuration. It tells Claude Code how to work on mailnotmilk itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mailnotmilk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jrb00013/mailnotmilk. 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/jrb00013/mailnotmilk/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/jrb00013/mailnotmilk

Made for: Claude Code.

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 mailnotmilk CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jrb00013/mailnotmilk/claude-md/github.svg)](https://agentmods.dev/instructions/jrb00013/mailnotmilk/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/jrb00013/mailnotmilk/claude-md"><img src="https://agentmods.dev/badge/instructions/jrb00013/mailnotmilk/claude-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.

agentmods 80×15 button for mailnotmilk CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/jrb00013/mailnotmilk/claude-md"><img src="https://agentmods.dev/badge/instructions/jrb00013/mailnotmilk/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 105 This file is loaded in full into every session.
When invoked 105 The same file — it is already loaded in full.
Security scan A 0 findings. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00105 $0.00105
Opus 5.5 $0.00042 $0.00042
Sonnet 5.5 $0.00021 $0.00021
Haiku 4.5 $0.00011 $0.00011

Measured 2mo ago against content hash 3a2ee2e243f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mailnotmilk 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 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.

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 · 8 lines

What it actually says

mailnotmilk

Install: ./install.sh install --tools all --skills --global-skills

Skills: mailnotmilk-bridge, browser-relay.

When the user has a browser ChatGPT/DeepSeek tab and wants Claude Code / Cursor / OpenCode involved, use browser_* + relay_tick (or tell them mailnotmilk relay). When they are in Cursor already, use bridge_to_claude and show pasteForPeer.

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. 2mo ago First seen · 8 lines · 105 tokens per session scan A 3a2ee2e243f9

Subscribe to this mod's changes

mailnotmilk CLAUDE.md is an instructions file published in the GitHub repository jrb00013/mailnotmilk (2 stars, last pushed 8d ago), licensed MIT. It adds 105 tokens to every session, about $0.0004 per session on Opus 5.5. 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 2026-08-31.

Related

mailnotmilk CLAUDE.md compared with instructions from other repositories

mailnotmilk CLAUDE.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mailnotmilk CLAUDE.mdjrb00013/mailnotmilkInstructions file28d agoMITA105Claude Code
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode