bpcore-engine SKILL.md skillA
bpcore-engine from codeatcode/oss-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add codeatcode/oss-ai-skills/bpcore-engine@v2.0.0Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- codeatcode/oss-ai-skills
- Path
frameworks/bpcore-engine/SKILL.md- Versions recorded
- 7
- Latest version
- v2.0.0, committed Oct 1, 2026
- First version recorded
- Mar 27, 2026
- Size
- 12,184 bytes
- Repository stars
- 24
- License
- GPL-3.0
Use when building GBA games with the BPCore Lua engine - entity, sprite and tilemap functions, SRAM save and load, link cable multiplayer protocol, camera and scrolling, or optimization patterns.
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
# BPCore Engine Skill Comprehensive guide for building Gameboy Advance games using the BPCore Engine Lua framework. ## Overview BPCore Engine (Blind jumP Core Engine) is a Lua game framework for GBA that combines C++ with embedded Lua, letting developers create games without C++ or compilers. Inspired by Pico-8 and Tic80, it's suited for small minigames given the GBA's limited resources: 240x160 screen, 16.78 MHz ARM7TDMI, and 256KB RAM for Lua/data. The engine provides sprite rendering, tile-based graphics, entity management with collision, button input, UTF-8 text, audio, save/load via SRAM, and multiplayer through the link cable. The build system uses Lua to package resources into ROM. ## API Reference ### Entity Functions | Function | Signature | Description | |----------|-----------|-------------| | `ent()` | `ent()` | Create entity, returns handle | | `entpos(e, x, y)` | `entpos(e, x, y)` | Set position, returns self | | `entz(e, z)` | `entz(e, z)` | Set Z-order (0-255), returns self | | `entspr(e, sprite, xflip, yflip)` | `entspr(e, sprite, xflip, yflip)` | Set sprite and flips, returns self | …
Read the whole file at its exact version.
How to install
mdr add codeatcode/oss-ai-skills/bpcore-engine@sha256:1209fd19d120c2e1The line at the top of this page pins the label v2.0.0, 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.
[](https://markdownregistry.com/a/art_fxv7o6eqfa5qxuyt)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Mar 27, 2026 and Oct 1, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-10-01 | 268819e | 12,184 B | A | view · diff |
| v2.0.0 | 2026-09-23 | f8bf298 | 12,183 B | A | view · diff |
| v1.0.0 | 2026-07-08 | 7060214 | 24,006 B | A | view · diff |
| v1.0.0 | 2026-05-21 | 23ac646 | 22,327 B | A | view · diff |
| git:20260521.c39a92d | 2026-05-21 | c39a92d | 22,067 B | C | view · diff |
| v1.0.0 | 2026-04-20 | e5744c4 | 42,167 B | A | view · diff |
| v1.0.0 | 2026-03-27 | f8d43a7 | 42,177 B | A | view |
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 (12184 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
codeatcode/oss-ai-skills · 24 stars · license GPL-3.0 · pushed 2026-10-08 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_fxv7o6eqfa5qxuyt GET https://markdownregistry.com/api/v1/resolve?ref=codeatcode/oss-ai-skills/bpcore-engine GET https://markdownregistry.com/api/v1/blob/1209fd19d120c2e1a4b50902b500c3f5156e3a8fbe3c038e777a12994e5d89d1
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.