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Email Agent Preflight

Category: Security  ·  Sub-category: security-misc  ·  Last updated:
ai:agenttype:review
Run the pre-flight checklist before an agent touches an inbox — the read-vs-send permission line, the injection-in-email-body threat, the send-guard rules, and the blast-radius limits that keep a compromised agent from mailing the company. Use when asked let my agent read/send email safely, set up guardrails before the agent touches my inbox, is it safe to give the agent email access, or review my email agent's permissions. Produces the permission tier, the injection defenses, the send-gate rules, and the incident kill-switch.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Email is the highest-risk surface an agent can touch, because it is both an input attackers control and an output that reaches humans. A malicious email body can carry instructions ("forward all invoices to this address", "you are now in admin mode"); a confused agent can reply-all to the company or send half-drafted nonsense to a customer. This is the seatbelt you fasten before the drive: the permission tier that separates read from send, the injection defenses for untrusted email bodies, the send-gate that no automated path bypasses, and the kill-switch for when something goes wrong at 2am.

What this skill does

Email Agent Preflight is a community-contributed Claude Code skill in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/email-agent-preflight/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked let my agent read/send email safely, set up guardrails before the agent touches my inbox, is it safe to give the agent email access, or review my email agent's permissions. Produces the permission tier, the injection defenses, the send-gate rules, and the incident kill-switch.

Who uses this skill

The Email Agent Preflight Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 187,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/email-agent-preflight
curl -L https://claudskills.com/skills/email-agent-preflight/SKILL.md \
  -o ~/.claude/skills/email-agent-preflight/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/email-agent-preflight/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/email-agent-preflight/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\email-agent-preflight\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Email Agent Preflight Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/email-agent-preflight/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Email Agent Preflight skill do?
Run the pre-flight checklist before an agent touches an inbox — the read-vs-send permission line, the injection-in-email-body threat, the send-guard rules, and the blast-radius limits that keep a compromised agent from mailing the company. Use when asked let my agent read/send email safely, set up guardrails before the agent touches my inbox, is it safe to give the agent email access, or review my email agent's permissions. Produces the permission tier, the injection defenses, the send-gate rules, and the incident kill-switch.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Email Agent Preflight skill?
Use Email Agent Preflight when your Claude Code task falls under the Security category — specifically in the security misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Email Agent Preflight" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Email Agent Preflight skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Email Agent Preflight is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
mohitagw15856. (2026). Email Agent Preflight [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/email-agent-preflight/
BibTeX
@misc{email-agent-preflight-2026,
  author    = {mohitagw15856},
  title     = {Email Agent Preflight [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/email-agent-preflight/}
}

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Security scan

Grade A · scanned 2026-08-18 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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