mittwald agent skills for Claude Code, Cursor and RevampKey

5 ready-made playbooks that teach an AI agent how to do real mittwald work: which tools to call, what to check first, and when to stop and ask you.

Download RevampKey, free I have it: connect mittwald

Connect mittwald once and all 5 skills install themselves and stay up to date. Mac, Windows and Linux.

All 5 mittwald skills

Each skill is one job. You ask in plain words and the agent loads the skill that matches, then follows its steps.

Start hereAsks before writing23 mittwald tools

Work with your mittwald hosting safely through AI

Connects your AI assistant to mittwald so it confirms the project and app first, reads before it changes anything, and asks for your explicit yes before restarts, deletes, upgrades or backup changes.

Use it when

You want to check apps or containers in one mittwald project without touching anything yet.
You need to know which mittwald tool fits a hosting question before running it.
You want an assistant that asks before any restart, uninstall, upgrade or backup change.

Tools it uses

mittwald_app_list
mittwald_app_get
mittwald_app_versions
mittwald_app_list_upgrade_candidates
mittwald_app_upgrade
mittwald_app_update
mittwald_app_copy
mittwald_app_uninstall
mittwald_app_ssh
mittwald_container_list
mittwald_container_logs
mittwald_container_restart
mittwald_container_delete
mittwald_backup_list
mittwald_backup_get
mittwald_backup_create
mittwald_backup_download
mittwald_backup_delete
mittwald_certificate_list
mittwald_certificate_request
mittwald_backup_schedule_create
mittwald_backup_schedule_update
mittwald_backup_schedule_delete

Example

List the apps in my 'shop-prod' project and tell me which ones have upgrade candidates. Don't change anything.

Project shop-prod has 6 apps installed. 2 have upgrade candidates: the shop platform (current version to a newer minor release) and the search plugin. I haven't changed anything. Do you want me to check for a recent backup before we plan either upgrade?

Use in RevampKeyRead the full skill →

Asks before writing10 mittwald tools

Plan a safe app upgrade on mittwald with AI

Compares installed and candidate app versions, confirms a recent restore point, and sequences the upgrade with a rollback path. It asks for your explicit approval before changing anything.

Use it when

You want to know which apps on a project have newer versions available
You are about to upgrade a site and need to confirm a backup exists first
An upgrade failed and you want to plan the rollback

Tools it uses

mittwald_app_list
mittwald_app_list_upgrade_candidates
mittwald_app_get
mittwald_app_versions
mittwald_backup_list
mittwald_backup_create
mittwald_app_upgrade
mittwald_app_update
mittwald_app_uninstall
mittwald_app_copy

Example

Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?

Two apps have upgrade candidates. The shop app is one minor version behind and has a backup from last night, so it is ready for an upgrade. I have not run the upgrade yet. Say yes if you want me to start it, and I will check the version and state afterwards.

Use in RevampKeyRead the full skill →

Asks before writing11 mittwald tools

Review your mittwald backups with AI

Audits which apps and containers have recent, working backups and flags gaps, stale restore points and silent schedule failures. It proposes schedule changes and waits for your approval before changing anything.

Use it when

You want to know whether your shop or CMS has a recent backup
A schedule was set up and you want to confirm it actually runs
You need a backup health check before a big update

Tools it uses

mittwald_app_list
mittwald_app_get
mittwald_container_list
mittwald_backup_list
mittwald_backup_get
mittwald_backup_schedule_list
mittwald_backup_schedule_create
mittwald_backup_schedule_update
mittwald_backup_schedule_delete
mittwald_backup_create
mittwald_backup_download

Example

Check whether all user data in my mittwald project has a recent, working backup, and tell me what to fix.

I checked 6 assets in project 'web-prod'. Four are fine. The shop database has a daily schedule and its newest good backup is 9 hours old. The uploads folder for the community site has no enabled schedule, so it is a gap. The blog container's schedule has failed for the last 3 runs. I propose a daily schedule for the uploads folder with 14 days retention. Nothing has been changed; shall I create it?

Use in RevampKeyRead the full skill →

Asks before writing2 mittwald tools

Check mittwald certificate and domain health with AI

Lists the TLS certificates for your mittwald project's sites, flags expired, expiring or missing ones and their likely cause, and asks for approval before requesting any renewal.

Use it when

A visitor reports a certificate warning on your shop or website
You want to know which certificates expire in the next month
A new subdomain was added and needs its own HTTPS certificate

Tools it uses

mittwald_certificate_list
mittwald_certificate_request

Example

Check the SSL certificates for all sites in my mittwald project and tell me which ones expire within 30 days or are missing.

I found 9 names in your project's certificate list and 10 site names you gave me, so one is missing a certificate. shop.example.de expires in 9 days and needs renewal. The name blog.example.de has no certificate at all, and its DNS still points elsewhere. I have not requested anything yet: please confirm the DNS change for blog.example.de, and say yes if you want the shop certificate renewed now.

Use in RevampKeyRead the full skill →

Asks before writing4 mittwald tools

Triage a misbehaving mittwald container with AI

Lists your mittwald containers, reads recent logs to find the failing service, and recommends whether to fix, restart or escalate. It asks before any restart or delete.

Use it when

A site or app is down or restarting in mittwald
You want to know what a container is logging before deciding anything
You need to decide whether a restart will help or hide the cause

Tools it uses

mittwald_container_list
mittwald_container_logs
mittwald_container_restart
mittwald_container_delete

Example

My shop on mittwald has been down since this morning's deploy. Which container is failing and what do the logs say?

The worker container has restarted 7 times since 09:12, right after the deploy. The logs show repeated out-of-memory kills during the import job, while the web container is healthy. The likely cause is the import job exceeding its memory limit. I have not restarted anything. Restarting would restore service briefly, but the job would fail again. Do you want a restart to restore the shop now, and should we review the import job's memory use afterwards?

Use in RevampKeyRead the full skill →

Get all 5 without copying a file

RevampKey adds the skills when you connect mittwald, updates them for you and removes them when you disconnect.

Download RevampKey

How mittwald skills work

Connect mittwald
The mittwald MCP server gives the agent its tools.
Ask in plain words
“Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?” Each SKILL.md says when it applies, so only the one that fits is loaded.
Approve any change
The agent calls the tools in order, checks its work, and shows you any change before it makes it.

How to install mittwald skills

In RevampKey the skills install themselves when you connect mittwald. In other tools each skill is one folder with a SKILL.md file, and you also need the mittwald MCP server connected there.

About 1 minute · nothing to copy

Download RevampKey for Mac, Windows or Linux and sign in.
Open Connectors and connect mittwald. All 5 skills come with it and stay up to date; they go away when you remove the connector.
Ask in plain language, for example “Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?”
Download RevampKeyConnect mittwald · 1 click
Get RevampKey to connect mittwald
RevampKey is a free desktop app for Mac, Windows and Linux. Install it, sign in, and mittwald is one click away with its skills already attached.
Download RevampKey
Not now? Use the skills in your current tool
for s in essentials app-upgrade-planning backup-review certificate-and-domain-health container-incident-triage; do curl -fsSL --create-dirs -o .claude/skills/mittwald-$s/SKILL.md https://revampkey.com/marketplace/mittwald/skills/$s/SKILL.md done
Other tools

Into this project’s .claude/skills folder

Connect the mittwald MCP server in Claude Code.

Run this in your project folder to add all 5 skills:

for s in essentials app-upgrade-planning backup-review certificate-and-domain-health container-incident-triage; do
  curl -fsSL --create-dirs -o .claude/skills/mittwald-$s/SKILL.md https://revampkey.com/marketplace/mittwald/skills/$s/SKILL.md
done

Ask in plain language, for example “Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?”

Into the shared .agents/skills folder

Connect the mittwald MCP server in Cursor.

Run this in your project folder to add all 5 skills:

for s in essentials app-upgrade-planning backup-review certificate-and-domain-health container-incident-triage; do
  curl -fsSL --create-dirs -o .agents/skills/mittwald-$s/SKILL.md https://revampkey.com/marketplace/mittwald/skills/$s/SKILL.md
done

Ask in plain language, for example “Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?”

Into the shared .agents/skills folder

Connect the mittwald MCP server in Codex.

Run this in your project folder to add all 5 skills:

for s in essentials app-upgrade-planning backup-review certificate-and-domain-health container-incident-triage; do
  curl -fsSL --create-dirs -o .agents/skills/mittwald-$s/SKILL.md https://revampkey.com/marketplace/mittwald/skills/$s/SKILL.md
done

Ask in plain language, for example “Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?”

Into the shared .agents/skills folder

Connect the mittwald MCP server in VS Code.

Run this in your project folder to add all 5 skills:

for s in essentials app-upgrade-planning backup-review certificate-and-domain-health container-incident-triage; do
  curl -fsSL --create-dirs -o .agents/skills/mittwald-$s/SKILL.md https://revampkey.com/marketplace/mittwald/skills/$s/SKILL.md
done

Ask in plain language, for example “Which apps in my mittwald project can be upgraded, and is it safe to upgrade the shop app today?”

RevampKey or copy the files?

In RevampKey

One click when you connect mittwald
Updated for you when a skill improves
Removed when you disconnect
The MCP server is set up for you
800+ other connectors, same way

Download free

Copy into your project

One command per project
Run it again to get updates
You connect the mittwald MCP server yourself
Works in Claude Code, Cursor, Codex and VS Code

See the command

mittwald skills FAQ

What is a mittwald agent skill?

A SKILL.md file: a short playbook an AI agent loads when your request matches it. Each mittwald skill describes one job, which mittwald tools to use in which order, what to check first and when to stop and ask you.

Do the mittwald skills change anything on their own?

The others tell the agent to show you the change and wait for a yes before it creates, edits or deletes anything in mittwald.

Which tools can use these skills?

Any agent that reads the open Agent Skills format: Claude Code, Cursor, Codex, VS Code with Copilot and RevampKey. In RevampKey they are attached when you connect mittwald; elsewhere you copy the folders into your project or skills directory.

Do I need the mittwald MCP server too?

Yes. The skills tell the agent how to do the work; the mittwald MCP server gives it the tools to do it. The mittwald MCP setup guide covers every client.

mittwald MCP server setup · This page as Markdown

Put mittwald’s best workflows in your agent

Download RevampKey, connect mittwald and ask your first question in about a minute.

Download RevampKey Connect mittwald · 1 click

All 5 mittwald skills

Work with your mittwald hosting safely through AI

Use it when

Tools it uses

Plan a safe app upgrade on mittwald with AI

Use it when

Tools it uses

Review your mittwald backups with AI

Use it when

Tools it uses

Check mittwald certificate and domain health with AI

Use it when

Tools it uses

Triage a misbehaving mittwald container with AI

Use it when

Tools it uses

Get all 5 without copying a file

How mittwald skills work

How to install mittwald skills

RevampKey or copy the files?

In RevampKey

Copy into your project

mittwald skills FAQ

Put mittwald’s best workflows in your agent

Skills for related tools