multiplayer-testing SKILL.md skillA
multiplayer-testing 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-testing@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-testing/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261011.40a53f8, committed Oct 11, 2026
- First version recorded
- Oct 6, 2026
- Size
- 10,464 bytes
- Repository stars
- 86
- License
- MIT
Test a Summer multiplayer game with Local Play: several players, a bad network, bots, and what a passing run shows.
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-testing — prove it works before saying it works Step 4 of the multiplayer sequence (`multiplayer` explains the model). **Local Play** runs a Summer multiplayer game on one machine. It starts the World's authority scene headless and N clients, and each client joins through the game's own `Summer.client.join`. No account, server or extra tools are needed. It can also make the network bad on purpose, which is where multiplayer bugs show. ## 1. Start Local Play Pick whichever the session has. **Summer MCP tools** (they set project settings, then play): ``` summer_project_setting key="summer/local_play/players" value=2 summer_play summer_get_diagnostics summer_stop ``` **Editor:** **Debug > Local Multiplayer**, pick the player count, press Play. The client windows tile side by side. **Terminal** (`<summer>` is the Summer editor executable). Import once after adding scripts so their classes register: ```sh <summer> --headless --path . --import <summer> --path . --summer-local-play 2 --summer-local-play-timeout 30 ``` | Setting | Terminal flag | Meaning | |---|---|---| …
Read the whole file at its exact version.
How to install
mdr add summerengine/summer/multiplayer-testing@sha256:d385230d6c092863The 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_xe5jfuhgfsf5xuns)
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 | 10,464 B | A | view · diff |
| git:20261010.4ade947 | 2026-10-10 | 4ade947 | 9,708 B | A | view · diff |
| git:20261006.cb682ef | 2026-10-06 | cb682ef | 9,712 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 (10464 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_xe5jfuhgfsf5xuns GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/multiplayer-testing GET https://markdownregistry.com/api/v1/blob/d385230d6c09286311ec29a19186812116f575675524de32fa90189a5539d9d4
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.