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agentmail-cli▌

agentmail-to/agentmail-skills · updated Apr 30, 2026

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$npx skills add https://github.com/agentmail-to/agentmail-skills --skill agentmail-cli
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summary

Use the agentmail CLI to send and receive emails programmatically. Requires AGENTMAIL_API_KEY environment variable.

skill.md

AgentMail CLI

Use the agentmail CLI to send and receive emails programmatically. Requires AGENTMAIL_API_KEY environment variable.

Install

npm install -g agentmail-cli

Core Commands

Inboxes

# Create an inbox
agentmail inboxes create --display-name "My Agent" --username myagent --domain example.com

# List inboxes
agentmail inboxes list

# Get an inbox
agentmail inboxes retrieve --inbox-id <inbox_id>

# Delete an inbox
agentmail inboxes delete --inbox-id <inbox_id>

Send Email

# Send a message from an inbox
agentmail inboxes:messages send --inbox-id <inbox_id> \
  --to "[email protected]" \
  --subject "Hello" \
  --text "Message body"

# Send with HTML
agentmail inboxes:messages send --inbox-id <inbox_id> \
  --to "[email protected]" \
  --subject "Hello" \
  --html "<h1>Hello</h1>"

# Reply to a message
agentmail inboxes:messages reply --inbox-id <inbox_id> --message-id <message_id> \
  --text "Reply body"

# Forward a message
agentmail inboxes:messages forward --inbox-id <inbox_id> --message-id <message_id> \
  --to "[email protected]"

Read Email

# List messages in an inbox
agentmail inboxes:messages list --inbox-id <inbox_id>

# Get a specific message
agentmail inboxes:messages retrieve --inbox-id <inbox_id> --message-id <message_id>

# List threads
agentmail inboxes:threads list --inbox-id <inbox_id>

# Get a thread
agentmail inboxes:threads retrieve --inbox-id <inbox_id> --thread-id <thread_id>

Drafts

# Create a draft
agentmail inboxes:drafts create --inbox-id <inbox_id> \
  --to "[email protected]" \
  --subject "Draft" \
  --text "Draft body"

# Send a draft
agentmail inboxes:drafts send --inbox-id <inbox_id> --draft-id <draft_id>

Pods

Pods group inboxes together.

# Create a pod
agentmail pods create --name "My Pod"

# Create an inbox in a pod
agentmail pods:inboxes create --pod-id <pod_id> --display-name "Pod Inbox"

# List threads in a pod
agentmail pods:threads list --pod-id <pod_id>

Webhooks

# Create a webhook for new messages
agentmail webhooks create --url "https://example.com/webhook" --event-type message.received

# List webhooks
agentmail webhooks list

Domains

# Add a custom domain
agentmail domains create --domain example.com --feedback-enabled false

# Verify domain DNS
agentmail domains verify --domain-id <domain_id>

# Get DNS records to configure
agentmail domains get-zone-file --domain-id <domain_id>

Global Flags

All commands support: --api-key, --base-url, --environment, --format, --debug.

Output Formats

Use --format to control output: json (default), pretty, yaml, jsonl, raw, explore.

how to use agentmail-cli

How to use agentmail-cli on Cursor

AI-first code editor with Composer

1

Prerequisites

Before installing skills in Cursor, ensure your development environment meets these requirements:

  • ›Cursor installed and configured on your development machine
  • ›Node.js version 16.0+ with npm package manager (verify with node --version)
  • ›Active project directory or workspace where you want to add agentmail-cli
2

Execute installation command

Execute the skills CLI command in your project's root directory to begin installation:

$npx skills add https://github.com/agentmail-to/agentmail-skills --skill agentmail-cli

The skills CLI fetches agentmail-cli from GitHub repository agentmail-to/agentmail-skills and configures it for Cursor.

3

Select Cursor when prompted

The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:

◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ── always included ────
│ • Amp
│ • Antigravity
│ • Cline
│ • Codex
│ ●Cursor(selected)
│ • Cursor
│ • Windsurf
4

Verify installation

Confirm successful installation by checking the skill directory location:

.cursor/skills/agentmail-cli

Reload or restart Cursor to activate agentmail-cli. Access the skill through slash commands (e.g., /agentmail-cli) or your agent's skill management interface.

⚠

Security & Verification Notice

We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.

Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.

Additional Resources

›View source code on GitHub›Skills CLI documentation›Learn more about Cursor›What are agent skills?

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Use Cases▌

Task Automation & Efficiency

Automate repetitive workflows and reduce manual effort

Example

Generate reports, summarize documents, draft communications

✓

Save 3-5 hours per week on routine tasks

Knowledge Enhancement

Learn new skills, understand complex topics, get expert guidance

Example

Explain concepts, provide examples, suggest learning resources

✓

Accelerate learning and skill development by 2x

Quality Improvement

Enhance output quality through reviews, suggestions, and refinements

Example

Review drafts, suggest improvements, catch errors

✓

Improve work quality by 30-40% with less effort

Implementation Guide▌

Prerequisites

  • ›Claude Desktop or compatible AI client with skill support
  • ›Clear understanding of task or problem to solve
  • ›Willingness to iterate and refine outputs

Time Estimate

15-45 minutes depending on use case complexity

Installation Steps

  1. 1.Install skill using provided installation command
  2. 2.Test with simple use case relevant to your work
  3. 3.Evaluate output quality and relevance
  4. 4.Iterate on prompts to improve results
  5. 5.Integrate into regular workflow if valuable

Common Pitfalls

  • ⚠Expecting perfect results without iteration
  • ⚠Not providing enough context in prompts
  • ⚠Using skill for tasks outside its intended scope
  • ⚠Accepting outputs without review and validation

Best Practices▌

✓ Do

  • +Start with clear, specific prompts
  • +Provide relevant context and constraints
  • +Review and refine all outputs before using
  • +Iterate to improve output quality
  • +Document successful prompt patterns

✗ Don't

  • −Don't use without understanding skill limitations
  • −Don't skip validation of outputs
  • −Don't share sensitive information in prompts
  • −Don't expect skill to replace human judgment

💡 Pro Tips

  • ★Be specific about desired format and style
  • ★Ask for multiple options to choose from
  • ★Request explanations to understand reasoning
  • ★Combine AI efficiency with human expertise

When to Use This▌

✓ Use When

Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.

✗ Avoid When

Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.

Learning Path▌

  1. 1Familiarize yourself with skill capabilities and limitations
  2. 2Start with low-risk, non-critical tasks
  3. 3Progress to more complex and valuable use cases
  4. 4Build expertise through regular use and experimentation

Discussion

Product Hunt–style comments (not star reviews)
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general reviews

Ratings

4.5★★★★★31 reviews
  • ★★★★★Liam Perez· Dec 16, 2024

    agentmail-cli has been reliable in day-to-day use. Documentation quality is above average for community skills.

  • ★★★★★Pratham Ware· Dec 4, 2024

    Solid pick for teams standardizing on skills: agentmail-cli is focused, and the summary matches what you get after install.

  • ★★★★★Li Khan· Dec 4, 2024

    Solid pick for teams standardizing on skills: agentmail-cli is focused, and the summary matches what you get after install.

  • ★★★★★Yash Thakker· Nov 23, 2024

    We added agentmail-cli from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.

  • ★★★★★Aanya Martin· Nov 23, 2024

    We added agentmail-cli from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.

  • ★★★★★Olivia Dixit· Nov 7, 2024

    agentmail-cli fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.

  • ★★★★★Zara Malhotra· Oct 26, 2024

    We added agentmail-cli from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.

  • ★★★★★Dhruvi Jain· Oct 14, 2024

    agentmail-cli fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.

  • ★★★★★Aditi Garcia· Oct 14, 2024

    agentmail-cli fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.

  • ★★★★★Amina Choi· Sep 9, 2024

    Keeps context tight: agentmail-cli is the kind of skill you can hand to a new teammate without a long onboarding doc.

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