Agent skill

Agentmail

Give the agent its own dedicated email inbox via AgentMail. An agent skill from Tommy-yw/RunbookHermes.

MITAuto-check: notesProductivity & Automation

Install Agentmail

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .claude/skills && cp -r skills-src/optional-skills/email/agentmail .claude/skills/agentmail && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .claude/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .agents/skills && cp -r skills-src/optional-skills/email/agentmail .agents/skills/agentmail && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .agents/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/optional-skills/email/agentmail .cursor/skills/agentmail && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .cursor/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Tommy-yw/RunbookHermes.git --path optional-skills/email/agentmail

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/optional-skills/email/agentmail .gemini/skills/agentmail && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .gemini/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .github/skills && cp -r skills-src/optional-skills/email/agentmail .github/skills/agentmail && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .github/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Tommy-yw/RunbookHermes --skill agentmail -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Tommy-yw/RunbookHermes agentmail --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Tommy-yw/RunbookHermes.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/optional-skills/email/agentmail .opencode/skills/agentmail && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "agentmail" agent skill from https://github.com/Tommy-yw/RunbookHermes/tree/main/optional-skills/email/agentmail into .opencode/skills/agentmail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentmail", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: agentmail
GitHub stars: 546
Used in: 1 other repo
Token cost: ~1k tokens
SKILL.md length: 425 words
Files: 1
Skills in repo: 38
Repo updated: May 18, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Give the agent its own dedicated email inbox via AgentMail. An agent skill from Tommy-yw/RunbookHermes.

Works in 3 steps: Get an API Key → Configure MCP Server → Restart Hermes
Tasks that involve Email management
SKILL.md covers Requirements, When to Use, Setup and Available Tools (via MCP), plus 5 more sections
Calls npx and pip; needs AGENTMAIL_API_KEY

What it does

Agentmail is an agent skill from Tommy-yw/RunbookHermes. Give the agent its own dedicated email inbox via AgentMail. Send, receive, and manage email autonomously using agent-owned email addresses (e.g. hermes-agent@agentmail.to).

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Email management. It works with Model Context Protocol. The repository describes itself as: Hermes-native AIOps agent for evidence-driven incident response, approval-gated remediation, and runbook learning. The licence is MIT.

When your agent uses it

Tasks that involve Email management

Example prompts

“/agentmail”

Requirements

Python 3
Node.js
A credential in AGENTMAIL_API_KEY

Workflow steps

3 steps, taken from the step headings in SKILL.md.

Get an API Key
Configure MCP Server
Restart Hermes

What it can do on your machine

Read from SKILL.md and the folder at commit 7fd2b9a. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- npx
- pip
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- console.agentmail.to
- docs.agentmail.to
- github.com
- agentmail.to
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- AGENTMAIL_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Agentmail loads about 1k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 425 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~46
When it runs · the whole SKILL.md, loaded when a task matches: ~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NoteMentions a .env fileSKILL.md:37

key — MCP env vars are not expanded from .env):

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Tommy-yw/RunbookHermes at commit 7fd2b9a, republished under its MIT licence (© Tommy-yw). 425 words, ~1,030 tokens.

Download SKILL.mdSave it as .claude/skills/agentmail/SKILL.md (or your agent's skills folder).

name: agentmail
description: Give the agent its own dedicated email inbox via AgentMail. Send, receive, and manage email autonomously using agent-owned email addresses (e.g. hermes-agent@agentmail.to).
version: 1.0.0

AgentMail — Agent-Owned Email Inboxes

Requirements

AgentMail API key (required) — sign up at https://console.agentmail.to (free tier: 3 inboxes, 3,000 emails/month; paid plans from $20/mo)
Node.js 18+ (for the MCP server)

When to Use

Use this skill when you need to:

Give the agent its own dedicated email address
Send emails autonomously on behalf of the agent
Receive and read incoming emails
Manage email threads and conversations
Sign up for services or authenticate via email
Communicate with other agents or humans via email

This is NOT for reading the user's personal email (use himalaya or Gmail for that). AgentMail gives the agent its own identity and inbox.

Setup

1. Get an API Key

Go to https://console.agentmail.to
Create an account and generate an API key (starts with am_)

2. Configure MCP Server

Add to ~/.hermes/config.yaml (paste your actual key — MCP env vars are not expanded from .env):

yaml

mcp_servers:
  agentmail:
    command: "npx"
    args: ["-y", "agentmail-mcp"]
    env:
      AGENTMAIL_API_KEY: "am_your_key_here"

3. Restart Hermes

bash

hermes

All 11 AgentMail tools are now available automatically.

Available Tools (via MCP)

Tool	Description
`list_inboxes`	List all agent inboxes
`get_inbox`	Get details of a specific inbox
`create_inbox`	Create a new inbox (gets a real email address)
`delete_inbox`	Delete an inbox
`list_threads`	List email threads in an inbox
`get_thread`	Get a specific email thread
`send_message`	Send a new email
`reply_to_message`	Reply to an existing email
`forward_message`	Forward an email
`update_message`	Update message labels/status
`get_attachment`	Download an email attachment

Procedure

Create an inbox and send an email

Create a dedicated inbox:
- Use create_inbox with a username (e.g. hermes-agent)
- The agent gets address: hermes-agent@agentmail.to
Send an email:
- Use send_message with inbox_id, to, subject, text
Check for replies:
- Use list_threads to see incoming conversations
- Use get_thread to read a specific thread

Show full SKILL.md (148 more words)Show less

Check incoming email

Use list_inboxes to find your inbox ID
Use list_threads with the inbox ID to see conversations
Use get_thread to read a thread and its messages

Reply to an email

Get the thread with get_thread
Use reply_to_message with the message ID and your reply text

Example Workflows

Sign up for a service:

1. create_inbox (username: "signup-bot")
2. Use the inbox address to register on the service
3. list_threads to check for verification email
4. get_thread to read the verification code

Agent-to-human outreach:

1. create_inbox (username: "hermes-outreach")
2. send_message (to: user@example.com, subject: "Hello", text: "...")
3. list_threads to check for replies

Pitfalls

Free tier limited to 3 inboxes and 3,000 emails/month
Emails come from @agentmail.to domain on free tier (custom domains on paid plans)
Node.js (18+) is required for the MCP server (npx -y agentmail-mcp)
The mcp Python package must be installed: pip install mcp
Real-time inbound email (webhooks) requires a public server — use list_threads polling via cronjob instead for personal use

Verification

After setup, test with:

hermes --toolsets mcp -q "Create an AgentMail inbox called test-agent and tell me its email address"

You should see the new inbox address returned.

References

AgentMail docs: https://docs.agentmail.to/
AgentMail console: https://console.agentmail.to
AgentMail MCP repo: https://github.com/agentmail-to/agentmail-mcp
Pricing: https://www.agentmail.to/pricing

Files

Just SKILL.md in optional-skills/email/agentmail of Tommy-yw/RunbookHermes.

Open the folder on GitHubat commit 7fd2b9a

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Tommy-yw/RunbookHermes, which our catalogue first saw on October 7, 2026.

johnson7788/MultiUserClawhermes-agent/optional-skills/email/agentmail

Compare with similar skills

Agentmail next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Agentmail compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Agentmail this skillTommy-yw/RunbookHermes	546	1 repos	~1k	Automated safety check: Notes	MIT	4 mo ago
Gmail Query Syntaxprovos/ironcurtain	612	—	~971	Automated safety check: Pass	Apache-2.0	2 days ago
Email CheckAgriciDaniel/claude-email	130	—	~2.4k	Automated safety check: Pass	MIT	4 mo ago
Setup Lanes Linklanes-sh/app	273	—	~2.3k	Automated safety check: Pass	None	3 days ago
SupercompressSupercompress/Supercompress	107	—	~366	Automated safety check: Pass	MIT	2 days ago
Triage Inboxpedrohcgs/claude-code-my-workflow	1.7k	—	~2.7k	Automated safety check: Notes	MIT	12 days ago

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Questions about Agentmail

What does Agentmail do?

Give the agent its own dedicated email inbox via AgentMail. An agent skill from Tommy-yw/RunbookHermes. Agentmail is an agent skill from Tommy-yw/RunbookHermes. Give the agent its own dedicated email inbox via AgentMail.

When should I use Agentmail?

Agentmail fits situations like: tasks that involve Email management.

How do I install Agentmail in Claude Code?

Run `npx skills add Tommy-yw/RunbookHermes --skill agentmail -a claude-code`. Or copy the skill folder (optional-skills/email/agentmail in Tommy-yw/RunbookHermes) into .claude/skills/agentmail in your project. Claude Code loads it when a task matches its description.

How do I install Agentmail in Codex?

Run `npx skills add Tommy-yw/RunbookHermes --skill agentmail -a codex`. Or copy the skill folder (optional-skills/email/agentmail in Tommy-yw/RunbookHermes) into .agents/skills/agentmail in your project. Codex loads it when a task matches its description.

Can I use Agentmail in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Tommy-yw/RunbookHermes --skill agentmail -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agentmail, .gemini/skills/agentmail, .github/skills/agentmail and .opencode/skills/agentmail in your project.

What does Agentmail need to run?

Going by SKILL.md and its folder, Agentmail needs the command-line tools its instructions call (npx and pip) and credentials named AGENTMAIL_API_KEY. Our summary lists: Python 3; Node.js; A credential in AGENTMAIL_API_KEY.

Does Agentmail access the network?

SKILL.md names 4 domains. As links in the text: console.agentmail.to, docs.agentmail.to, github.com and agentmail.to. This is read from the text; nothing was executed.

Is Agentmail safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Agentmail use?

Agentmail is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Agentmail use?

About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Agentmail?

Skills that share tags, products or a category with Agentmail: Gmail Query Syntax (provos/ironcurtain, 612 stars), Email Check (AgriciDaniel/claude-email, 130 stars), Setup Lanes Link (lanes-sh/app, 273 stars) and Supercompress (Supercompress/Supercompress, 107 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agentmail?

Tommy-yw (a GitHub user) maintains it in Tommy-yw/RunbookHermes, which has 546 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on May 18, 2026.

Source: Tommy-yw/RunbookHermes on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Agentmail

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

AgentMail — Agent-Owned Email Inboxes

Requirements

When to Use

Setup

1. Get an API Key

2. Configure MCP Server

3. Restart Hermes

Available Tools (via MCP)

Procedure

Create an inbox and send an email

Check incoming email

Reply to an email

Example Workflows

Pitfalls

Verification

References

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from Tommy-yw/RunbookHermes

Related

Questions about Agentmail