An email-management skill for AI agents that works with email accounts through IMAP and SMTP, the standard protocols for receiving and sending email. It can handle email search, reading, sending, summaries, classification, threads, and attachment previews.

Use it to find and read messages, send emails, draft replies, organise or classify mail, track conversations, and inspect attachments across multiple accounts.

It brings email work into the agent so users do not have to handle every message manually or switch between separate email tools.

mail-skill — Skill for Claude Code and Codex by Linearl

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.

Any agent

npx skills add Linearl/reasonix_skill_repo --skill mail-skill

Clone the repo

git clone --depth 1 https://github.com/Linearl/reasonix_skill_repo

Made for: Claude Code, Codex.

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/skills/linearl/reasonix_skill_repo/mail-skill.svg)](https://agentmods.dev/skills/linearl/reasonix_skill_repo/mail-skill)

Your own site

<a href="https://agentmods.dev/skills/linearl/reasonix_skill_repo/mail-skill"><img src="https://agentmods.dev/badge/skills/linearl/reasonix_skill_repo/mail-skill.svg" alt="Measured on agentmods" height="20"></a>

Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,040 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00096	$0.03040
Opus 5	$0.00048	$0.01520
Sonnet 5	$0.00019	$0.00608
Haiku 4.5	$0.00010	$0.00304

Measured 7d ago against content hash 1d4f1a15e9b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

mail-skill scanned grade C 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 7d ago.

The scan reads SKILL.md. This mod also ships 28 executable files (scripts/mail_cli.py, scripts/mail_manager/__init__.py, scripts/mail_manager/attachment_parser/__init__.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf "$SKILL_DIR"

skills/mail-skill/SKILL.md · 459 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

35 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

7d ago First seen · 459 lines · 96 tokens per session scan C 1d4f1a15e9b1

Subscribe to this mod's changes

mail-skill is a skill published in the GitHub repository Linearl/reasonix_skill_repo (2 stars, last pushed 10d ago), with no licence file. It adds 96 tokens to every session and 3,040 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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