batocera-maintenance SKILL.md skillA
batocera-maintenance from t3chnaztea/batocera-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add t3chnaztea/batocera-skills/batocera-maintenance@git:20260704.d32e8c6Pins git:20260704.d32e8c6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- t3chnaztea/batocera-skills
- Path
skills/batocera-maintenance/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260704.d32e8c6, committed Jul 4, 2026
- Size
- 4,305 bytes
- Repository stars
- 4
- License
- MIT
Use when keeping a Batocera cabinet healthy over time: running scripts or scheduled jobs at boot and on an interval without cron, the custom_service boot-service pattern (which replaced custom.sh in v43), backing up /userdata to another machine over SSH, and upgrading between major Batocera versions (v42 to v43 and similar) including the ROM-directory renames and post-upgrade checklist. Covers why there is no crond, the backup-before-upgrade doctrine, and catch-up scheduling. Not for…
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
# Batocera Maintenance
Keeping the cabinet healthy: running things at boot and on a schedule, backing up
what matters, and surviving version upgrades. Assumes the connection pattern and
filesystem model from `batocera-ops`.
## There is no crond — use a boot service
Batocera does **not** run a general-purpose `crond`. Don't write a crontab and
assume it fires; it won't. The mechanism for "run this at boot / on a schedule"
is a **boot service**.
Since v43, the entry point is `/userdata/system/services/custom_service` (it
replaced `/userdata/system/custom.sh`; the upgrade auto-converts an existing
`custom.sh`). A service is a script Batocera runs at boot with a `start`
argument. Enable/inspect services:
```bash
SSHB "batocera-services list"
SSHB "cat /userdata/system/services/custom_service"
```
### Scheduling without cron: the boot-loop pattern
To run something periodically, the service launches a background loop that sleeps
and re-checks. This is how the cabinet does hourly/daily/monthly work with no
cron:
```bash
# inside custom_service, on the 'start' case:
(
while true; do
# hourly re-assert (e.g. CPU governor; see batocera-tuning)
…Read the whole file at its exact version.
How to install
mdr add t3chnaztea/batocera-skills/batocera-maintenance@sha256:f8f2389a429cd607The line at the top of this page pins the label git:20260704.d32e8c6, 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_6fiymk5ywywt6zv5)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 4, 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 (4305 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
t3chnaztea/batocera-skills · 4 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6fiymk5ywywt6zv5 GET https://markdownregistry.com/api/v1/resolve?ref=t3chnaztea/batocera-skills/batocera-maintenance GET https://markdownregistry.com/api/v1/blob/f8f2389a429cd6079952d9053a294009ffccadef1149eecdeaf1b3b3347afeef
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.