What is better-email-mcp-worker AGENTS.md?

A set of project instructions for better-email-mcp-worker, a TypeScript email server that uses IMAP and SMTP to receive and send mail. It documents the project’s setup, checks, tests, and development commands.

Use it when installing dependencies, building, linting, type-checking, testing, fixing code, or running the email server locally.

It gives a coding agent the commands and environment details needed to work on the project consistently. It also explains how to run one test file or one named test when investigating a problem.

How laschopin/better-email-mcp-worker configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to laschopin/better-email-mcp-worker. 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/laschopin/better-email-mcp-worker/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/laschopin/better-email-mcp-worker

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/laschopin/better-email-mcp-worker/agents-md/github.svg)](https://agentmods.dev/instructions/laschopin/better-email-mcp-worker/agents-md)

Your own site

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

Per session 1,232 This file is loaded in full into every session.

When invoked 1,232 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 78% copy Near-identical to another mod 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	$0.01232	$0.01232
Opus 5	$0.00616	$0.00616
Sonnet 5	$0.00246	$0.00246
Haiku 4.5	$0.00123	$0.00123

Measured 8d ago against content hash 9111289d107f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

better-email-mcp-worker 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.

Origin

This is a copy

78% identical to better-notion-mcp AGENTS.md — 73 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 142 lines

How it starts

The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md - better-email-mcp

MCP Server for Email (IMAP/SMTP). TypeScript, Node.js >= 24, bun, ESM.

Build / Lint / Test Commands

bun install                 # Install dependencies
bun run build               # tsc --build && esbuild CLI bundle
bun run check               # Biome check + tsc --noEmit (CI command)
bun run check:fix           # Auto-fix Biome + type check
bun run test                # vitest --passWithNoTests
bun run test:watch          # vitest watch
bun run test:coverage       # vitest --coverage
bun run lint                # biome check .
bun run format              # biome format --write .
bun run type-check          # tsc --noEmit
bun run dev                 # tsx watch dev server

# Run a single test file
bun vitest run src/tools/helpers/errors.test.ts

# Run a single test by name
bun vitest run -t "test name pattern"

# Mise shortcuts
mise run setup              # Full dev environment setup
mise run lint               # bun run check
mise run test               # bun run test
mise run fix                # bun run check:fix

Environment Variables

# Required: email credentials (App Passwords, NOT regular passwords)
[email protected]:abcd-efgh-ijkl-mnop

# Multiple accounts
[email protected]:pass1,[email protected]:pass2

# Custom IMAP host (optional :port, default 993)
[email protected]:password:imap.custom.com:1993

# Local IMAP proxy ("localhost" is accepted as a host)
[email protected]:password:localhost:1993

Code Style

Formatting (Biome)

Indent: 2 spaces
Line width: 120
Quotes: Single quotes
Semicolons: As needed (omit when possible)
Trailing commas: None
Arrow parens: Always
Bracket spacing: true
Line endings: LF

Imports

Type imports use import type (separate statement)
External packages first, then internal imports (relative paths)
Node builtins with node: prefix (node:fs, node:path, node:url)
Always use .js extension in import paths (ESM requirement)

Read the full file on GitHub · 142 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.

8d ago First seen · 142 lines · 1,232 tokens per session scan A 9111289d107f

Subscribe to this mod's changes

better-email-mcp-worker AGENTS.md is an instructions file published in the GitHub repository laschopin/better-email-mcp-worker (0 stars, last pushed 1mo ago), licensed MIT. It adds 1,232 tokens to every session, about $0.0062 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to better-notion-mcp AGENTS.md, differing in 73 lines, and is treated as a copy.

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.

vercel/next.js · 7,296 tokens

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.

openai/codex · 5,153 tokens

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).

microsoft/vscode · 6,785 tokens

better-email-mcp-worker: Instructions file for Codex