multiplayer-project SKILL.md skillA
multiplayer-project from summerengine/summer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add summerengine/summer/multiplayer-project@git:20261011.40a53f8Pins git:20261011.40a53f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- summerengine/summer
- Path
library/skills/multiplayer-project/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261011.40a53f8, committed Oct 11, 2026
- First version recorded
- Oct 6, 2026
- Size
- 20,121 bytes
- Repository stars
- 86
- License
- MIT
Set up a Summer multiplayer project: both entry scenes, World and queue files, joining, and a first Local Play run.
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
# /multiplayer-project — the files every Summer multiplayer game needs Step 1 of the multiplayer sequence (`multiplayer` explains the model). By the end, Local Play starts a headless authority and two clients. Each client joins through the game's own `Summer.client.join`, and every client sees one player per joined player. The example game is **Courtyard**. The later skills (`multiplayer-movement`, `multiplayer-state`) continue it, so keep its names until the user's own game replaces them. Every file below was run as shown with Local Play; [files.md](files.md) has all of them complete, scenes included. ## 1. Ask, then state the plan > 1. What is the game called? Its id is `game_<name>`: lowercase letters, digits, `_`, `.` or `-`. > 2. How many players per match? Summer measures up to 16. > 3. Which platforms: iOS, macOS, Windows? State the plan before writing anything: > I'll add Summer multiplayer: a client scene and a headless authority scene, > a World and a queue for 2–8 players, a network composition, and Local Play > to test it. Each folder holds one side: `client/`, `authority/`, > `network/` (shared). OK? …
Read the whole file at its exact version.
How to install
mdr add summerengine/summer/multiplayer-project@sha256:a1c545a623d0bdc0The line at the top of this page pins the label git:20261011.40a53f8, 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_gtrjrtg57i3ab2y5)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 6, 2026 and Oct 11, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261011.40a53f8 latest | 2026-10-11 | 40a53f8 | 20,121 B | A | view · diff |
| git:20261010.4ade947 | 2026-10-10 | 4ade947 | 18,784 B | A | view · diff |
| git:20261006.cb682ef | 2026-10-06 | cb682ef | 18,785 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 (20121 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
summerengine/summer · 86 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gtrjrtg57i3ab2y5 GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/multiplayer-project GET https://markdownregistry.com/api/v1/blob/a1c545a623d0bdc0ba8e85dace530325bb04adfa492683a5c6cd216be73aa97a
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.