msx-play SKILL.md skillA
msx-play from jeong-sik/masc is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jeong-sik/masc/msx-play@git:20261101.23641a1Pins git:20261101.23641a1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jeong-sik/masc
- Path
addons/msx-machine/skills/msx-play/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261101.23641a1, committed Nov 1, 2026
- First version recorded
- Oct 9, 2026
- Size
- 7,733 bytes
- Repository stars
- 5
- License
- MIT
Play the shared MSX machine through image observation, sequential key input, disk changes and persistent checkpoints; learn game menus from their visible results.
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
# MSX play This attached Add-on provides the machine shared with the TUI and other Keepers. Agree on a handoff with the current driver before changing it. Calls are serialized, but no enforced driver lease protects a sequence across calls. If another caller intervenes, discard the remaining planned inputs, capture the current screen and coordinate who continues. Watching is not exclusive ownership. Preserve an existing campaign before taking it over; do not restart at each wake. ## Primitive tools - `masc_msx_screen` observes without advancing time. Calls return a PNG image block, dimensions and frame number together. Read that returned image; if the current model cannot interpret it, report the limitation. Bitmap `screen_text` is name-table data, not OCR; `halted` or a constant PC alone does not identify an input prompt. The sprite attribute table rides only with `sprites=true` — pass it when you really need sprite positions, not by habit. …
Read the whole file at its exact version.
How to install
mdr add jeong-sik/masc/msx-play@sha256:898570021318fdfeThe line at the top of this page pins the label git:20261101.23641a1, 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_qmml2agy246el7by)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Oct 9, 2026 and Nov 1, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261101.23641a1 latest | 2026-11-01 | 23641a1 | 7,733 B | A | view · diff |
| git:20261018.c8a97a5 | 2026-10-18 | c8a97a5 | 7,509 B | A | view · diff |
| git:20261009.6ab57c9 | 2026-10-09 | 6ab57c9 | 7,311 B | A | view · diff |
| git:20261009.17e9bb6 | 2026-10-09 | 17e9bb6 | 6,717 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 (7733 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
jeong-sik/masc · 5 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qmml2agy246el7by GET https://markdownregistry.com/api/v1/resolve?ref=jeong-sik/masc/msx-play GET https://markdownregistry.com/api/v1/blob/898570021318fdfe438cabf2a60e51c22edd1a0fdc3f8f871427d635dc28e018
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.