batocera-roms SKILL.md skillB

batocera-roms from t3chnaztea/batocera-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add t3chnaztea/batocera-skills/batocera-roms@git:20260704.d32e8c6

Pins git:20260704.d32e8c6 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
t3chnaztea/batocera-skills
Path
skills/batocera-roms/SKILL.md
Versions recorded
1
Latest version
git:20260704.d32e8c6, committed Jul 4, 2026
Size
6,781 bytes
Repository stars
4
License
MIT

Use when working with ROMs and gamelists on a Batocera cabinet: figuring out which directory a system's ROMs go in, why a game does not appear in the menu, which file formats and extensions a system accepts, curating a large library by hiding rather than deleting, editing gamelist.xml safely, cleaning up multi-disc games, or verifying dumps against No-Intro/Redump DATs. Covers extensionless-ROM-in-zip failures, the 3DO/Opera no-m3u trap, cave3rd, and the es_systems_custom.cfg landmine. 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 ROMs

Managing the game library: where ROMs live, why they do or don't show up, how to
curate a big collection without deleting anything, and how to verify dumps.
Assumes the connection pattern and safety doctrine from `batocera-ops`.

## System directories

ROMs live in `/userdata/roms/<system>/`, one directory per system. The directory
name is Batocera's internal system name, which is **not always** the obvious
one. Don't guess — look it up on the box:

```bash
# Every system Batocera knows, with its dir name and display name:
SSHB "grep -E '<name>|<fullname>' /usr/share/emulationstation/es_systems.cfg"

# What you actually have ROMs for:
SSHB "ls /userdata/roms/"
```

Names that trip people up: Cave CV1000 arcade lives in **`cave3rd`** (not
`cv1000`); Odyssey 2 is `odyssey2` (renamed from `o2em`); Half-Life is
`halflife` (renamed from `xash3d_fwgs`). Directory renames across versions are
common — the batocera-maintenance migration reference lists the ones that bite.

## Why a game doesn't appear

In rough order of likelihood:

1. **Wrong extension for that system.** Each system accepts a fixed set of
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add t3chnaztea/batocera-skills/batocera-roms@sha256:66e4a50cf0cf5287

The 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_mtc2aa37coibtqmz.svg)](https://markdownregistry.com/a/art_mtc2aa37coibtqmz)

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.

versioncommittedcommitsizeaudit
git:20260704.d32e8c6 latest2026-07-04 d32e8c6 6,781 BB view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1:1234)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6781 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 script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

t3chnaztea/batocera-skills · 4 stars · license MIT · pushed 2026-10-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mtc2aa37coibtqmz
GET https://markdownregistry.com/api/v1/resolve?ref=t3chnaztea/batocera-skills/batocera-roms
GET https://markdownregistry.com/api/v1/blob/66e4a50cf0cf528724ca3e23ad769b2f99bb7d021c2d2cd91be94128bb990c75

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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