mail

A Mac Mail assistant that lets a coding agent access email accounts configured in Apple’s Mail app, including iCloud, Gmail, IMAP, POP3, and Exchange accounts.

In plain words
What is it for?
Reading and working with email through Mac Mail. It is intended for Mac users; Windows and Linux users need another email connector.
Why use it?
It avoids switching to a separate email service when the needed account is already set up in Mail. It requires macOS permission for the agent or Terminal to control Mail.

Command for Claude Code

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 commands/derek-larson14/delegate/mail
Clone the repo
git clone --depth 1 https://github.com/derek-larson14/delegate

Made for: Claude Code.

Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,575 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00022 $0.01575
Opus 5 $0.00011 $0.00788
Sonnet 5 $0.00004 $0.00315
Haiku 4.5 $0.00002 $0.00158

Measured 2d ago against content hash 57abf981384b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mail scanned grade A 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sL https://raw.githubusercontent.com/derek-larson14/delegate/main/ops/scripts/mail-cli.sh -o ./ops/scripts/mail-cli.sh
.claude/commands/mail.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mac Mail Assistant

Access email via Mac Mail app using AppleScript. Works with ANY email provider configured in Mail.app (iCloud, Gmail, self-hosted IMAP, Exchange, etc).

Mac only. If the user is on Windows or Linux, tell them: "/mail uses Mac-only AppleScript. For email access, try Rube which can connect to Gmail, Outlook, and other email services."

Setup (check in order)

Step 1: Check if already working

./ops/scripts/mail-cli.sh status 2>&1
  • If shows MAIL_CONNECTED with accounts → ready. If user just said "/mail" with no specific request, ask: "What email task can I help with?"
  • If shows MAIL_NOT_ACCESSIBLE → need permission (Step 2)
  • If script not found → download it (Step 3)

Step 2: Grant Automation permission

Tell the user: "I need permission to access Mail.app."

Go to System Settings → Privacy & Security → Automation and enable:

  • Obsidian (or Terminal) to control Mail

macOS will also prompt on first use - click Allow.

Step 3: Get the script (if missing)

mkdir -p ./ops/scripts
curl -sL https://raw.githubusercontent.com/derek-larson14/delegate/main/ops/scripts/mail-cli.sh -o ./ops/scripts/mail-cli.sh
chmod +x ./ops/scripts/mail-cli.sh

Commands

List recent emails:

./ops/scripts/mail-cli.sh list        # 10 most recent
./ops/scripts/mail-cli.sh list 25     # 25 most recent

Read a specific email:

./ops/scripts/mail-cli.sh read <message_id>

Search emails (searches subject and sender):

./ops/scripts/mail-cli.sh search "meeting"
./ops/scripts/mail-cli.sh search "[email protected]"

Search by sender:

./ops/scripts/mail-cli.sh from "sarah"

Full-text search (includes body - slower):

./ops/scripts/mail-cli.sh search-body "project deadline"

List unread emails:

./ops/scripts/mail-cli.sh unread
./ops/scripts/mail-cli.sh unread 20   # limit to 20

List folders/mailboxes:

./ops/scripts/mail-cli.sh folders

Read the full file on GitHub · 228 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. 2d ago First seen · 228 lines · 22 tokens per session scan A 57abf981384b

Subscribe to this mod's changes

mail is a command published in the GitHub repository derek-larson14/delegate (39 stars, last pushed 4mo ago), licensed MIT. It adds 22 tokens to every session and 1,575 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.