agentmail-cli

agentmail-cli is a skill for Claude Code, Codex from agentmail-to/agentmail-skills. It costs 61 tokens per session (995 once invoked), scanned A, original, no licence file.

A command-line tool for operating AgentMail, an email service for software agents. It supports inbox and message tasks from a shell.

In plain words
What is it for?
Use it to list or create inboxes, read or search messages, send replies, manage drafts, and automate these tasks in shell scripts.
Why use it?
It avoids switching to application code or a web interface for routine mail operations. It also supports structured JSON or YAML output for scripts.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to list or create inboxes, read or search messages, send replies, manage drafts, and automate these tasks in shell scripts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentmail-to/agentmail-skills/agentmail-cli
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 agentmail-to/agentmail-skills --skill agentmail-cli
Clone the repo
git clone --depth 1 https://github.com/agentmail-to/agentmail-skills

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.

agentmods badge for agentmail-cli

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentmail-to/agentmail-skills/agentmail-cli/github.svg)](https://agentmods.dev/skills/agentmail-to/agentmail-skills/agentmail-cli)
Your own site
<a href="https://agentmods.dev/skills/agentmail-to/agentmail-skills/agentmail-cli"><img src="https://agentmods.dev/badge/skills/agentmail-to/agentmail-skills/agentmail-cli/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 agentmail-cli

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentmail-to/agentmail-skills/agentmail-cli"><img src="https://agentmods.dev/badge/skills/agentmail-to/agentmail-skills/agentmail-cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 995 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 3 Oct 2026
  • Snyk warn 3 Oct 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.00995
Opus 5.5 $0.00024 $0.00398
Sonnet 5.5 $0.00012 $0.00199
Haiku 4.5 $0.00006 $0.00100

Measured 1mo ago against content hash 265ed5d91b28, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentmail-cli 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 1mo 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.

agentmail-cli/SKILL.md · 124 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago Changed 265ed5d91b28
  2. 2mo ago First seen · 124 lines · 61 tokens per session scan A 69aa94399ec3

Subscribe to this mod's changes

agentmail-cli is a skill published in the GitHub repository agentmail-to/agentmail-skills (25 stars, last pushed 11d ago), with no licence file. It adds 61 tokens to every session and 995 once invoked, about $0.0002 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 2026-08-30.

Related

agentmail-cli compared with skills from other repositories

agentmail-cli next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
agentmail-cliagentmail-to/agentmail-skillsSkill2511d agononeA61Claude Code, Codex
orbit-notionnexu-io/open-designSkill106kyesterdayApache-2.0A117Claude Code, Codex
agentmailpaperclipai/paperclipSkill111kyesterdayMITA30Claude Code, Codex
Cortexdanielmiessler/LifeOSSkill20kyesterdayMITA184Claude Code
rowboat-spacesrowboatlabs/rowboatSkill18kyesterdayApache-2.0A60Claude Code, Codex
feishuHmbown/CodeWhaleSkill41k5d agoMITA33Claude Code, Codex
pinchtab-mcppinchtab/pinchtabSkill11k10d agoMITA52Claude Code, Codex