mailagent SKILL.md skillA
mailagent from hashgraph-online/awesome-codex-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hashgraph-online/awesome-codex-plugins/mailagent@v0.2.5Pins v0.2.5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hashgraph-online/awesome-codex-plugins
- Path
plugins/Alex0nder/mailagent/skills/mailagent/SKILL.md- Versions recorded
- 1
- Latest version
- v0.2.5, committed Jun 16, 2026
- Size
- 5,310 bytes
- Repository stars
- 1,537
- License
- Apache-2.0
Temporary inboxes for agent signup QA — create disposable addresses, wait for verification email, extract OTP or magic links. Use when automating signup, login, or email verification without parsing HTML manually.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# MailAgent MailAgent provides **programmatic disposable inboxes** for AI agents: receive OTP codes and magic links during signup flows, simulate inbound mail in CI, send/reply on verified domains, and diagnose timeouts. Official docs: https://webmailagent.com/docs/agents.html ## When to use - Signup or login that sends a verification email - Need OTP or magic link without hand-parsing HTML - E2E / agent task: "register with a temp email" - QA without real SMTP (`mailagent_simulate_message`) - **Not** for human privacy burners — programmatic agent inboxes with allowlists ## Install (pick one) ### Cursor (project) MCP in `.cursor/mcp.json` → `@mailagent/mcp` or `mcp/dist/index.js`. Skill auto-loads from `.cursor/skills/mailagent-mcp/` (synced from this file). ### Agent Skills catalog (repo root) ```bash npx skills add Alex0nder/MailAgent --skill mailagent ``` ### OpenAI Codex ```bash codex plugin marketplace add Alex0nder/MailAgent codex plugin install mailagent --source mailagent ``` Guide: https://webmailagent.com/docs/codex.html ### npm MCP (any client) ```bash export MAILAGENT_API_URL=https://api.webmailagent.com export MAILAGENT_API_KEY=ma_… …
Read the whole file at its exact version.
How to install
mdr add hashgraph-online/awesome-codex-plugins/mailagent@sha256:ae7c5c1193a9791aThe line at the top of this page pins the label v0.2.5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rzhc6vqnm5b7ip25)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5310 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
hashgraph-online/awesome-codex-plugins · 1,537 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rzhc6vqnm5b7ip25 GET https://markdownregistry.com/api/v1/resolve?ref=hashgraph-online/awesome-codex-plugins/mailagent GET https://markdownregistry.com/api/v1/blob/ae7c5c1193a9791a7a57b986403f111d60058ca2b62e2a6cb0b2c6af7cfba1c0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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