mgba

mgba is a skill for Claude Code, Codex from Mte90/dotfiles. It costs 24 tokens per session (5,989 once invoked), scanned A, original, no licence file.

A guide to Lua scripting for mGBA, an emulator that runs Game Boy Advance games. It covers automation, callbacks, memory changes, cheats, and ROM manipulation.

In plain words
What is it for?
It is for game automation, emulator callbacks, memory hacking, cheats, and ROM-related experiments.
Why use it?
It helps inspect and control an emulated game through scripts instead of doing repetitive actions manually.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/mte90/dotfiles/mgba
Any agent
npx skills add Mte90/dotfiles --skill mgba
Clone the repo
git clone --depth 1 https://github.com/Mte90/dotfiles

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mgba

README.md
[![agentmods](https://agentmods.dev/badge/skills/mte90/dotfiles/mgba.svg)](https://agentmods.dev/skills/mte90/dotfiles/mgba)
Your own site
<a href="https://agentmods.dev/skills/mte90/dotfiles/mgba"><img src="https://agentmods.dev/badge/skills/mte90/dotfiles/mgba.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,989 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00024 $0.05989
Opus 5 $0.00012 $0.02995
Sonnet 5 $0.00005 $0.01198
Haiku 4.5 $0.00002 $0.00599

Measured yesterday against content hash ae9213032357, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mgba scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.config/opencode/skills/mgba/SKILL.md · 985 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 985 lines · 24 tokens per session scan A ae9213032357

Subscribe to this mod's changes

mgba is a skill published in the GitHub repository Mte90/dotfiles (51 stars, last pushed 3d ago), with no licence file. It adds 24 tokens to every session and 5,989 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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../../../.claude/skills/proof/SKILL.md.

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