sendmux-management SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

sendmux-management from sendmux/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sendmux/skills/sendmux-management@v1.0

Pins v1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sendmux/skills
Path
plugins/sendmux/skills/sendmux-management/SKILL.md
Versions recorded
4
Latest version
v1.0, committed Sep 15, 2026
First version recorded
Jul 9, 2026
Size
12,898 bytes
Repository stars
18
License
a license file GitHub does not identify

Use this skill for Sendmux account/team administration with a root API key or Management-scoped OAuth connection. This is the go-to skill for domain lifecycle work — create a sending domain, fetch its DNS/zone-file records, verify DNS/MX — even if asked as a single quick step. Also use it for provisioning, suspending, or deleting mailboxes and mailbox API keys; configuring sending accounts/providers; creating, testing, or rotating webhooks; checking billing, spend, or balance; and pulling…

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

# Sendmux management

Use this skill for team administration with an `smx_root_` key or a REST OAuth grant with Management access.

## Boundaries

- Do not ask the user to paste an API key or one-time secret.
- Use a root API-key profile or OAuth profile with Management access and the operation's required scopes. OAuth remains limited by the authorising user's current team permissions.
- Agent self-registration does not require Management or a root key. Route a user who only wants an agent inbox to `sendmux-getting-started` and `sendmux agent:register`.
- Do not use management calls to read, triage, sync, or reply from a mailbox; route those tasks to `sendmux-mailbox-agent`.
- Treat create-key and webhook-secret responses as sensitive one-time values. Put them only in the user's chosen secret store or secure output path.
- Confirm destructive operations before deleting domains, mailboxes, mailbox keys, sending accounts, or webhooks.
- Confirm the target resource before suspend, resume, rotate-secret, or test-delivery operations.

## Surface choice

| Task | Preferred surface |
| --- | --- |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sendmux/skills/sendmux-management@sha256:04719fe232f6f06a

The line at the top of this page pins the label v1.0, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qeijhwbfzobdmov7.svg)](https://markdownregistry.com/a/art_qeijhwbfzobdmov7)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Jul 9, 2026 and Sep 15, 2026, about one every 23 days.

versioncommittedcommitsizeaudit
v1.0 latest2026-09-15 3de00a3 12,898 BA view · diff
v1.02026-09-11 4b98e93 10,151 BA view · diff
v1.02026-08-31 e2834ee 9,433 BA view · diff
v1.02026-07-09 6c471fe 9,033 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12898 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

GitHub

sendmux/skills · 18 stars · license a license file GitHub does not identify · pushed 2026-10-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qeijhwbfzobdmov7
GET https://markdownregistry.com/api/v1/resolve?ref=sendmux/skills/sendmux-management
GET https://markdownregistry.com/api/v1/blob/04719fe232f6f06a2bea78bac953f4b3fb1738776e1928e5142065e9d430a080

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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Every file in sendmux/skills

Other files named sendmux-management

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