cloudflare-do-turn-based-multiplayer SKILL.md skillA
cloudflare-do-turn-based-multiplayer from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swyxio/skills/cloudflare-do-turn-based-multiplayer@git:20260820.cd23820Pins git:20260820.cd23820 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swyxio/skills
- Path
cloudflare-do-turn-based-multiplayer/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260820.cd23820, committed Aug 20, 2026
- First version recorded
- Jul 30, 2026
- Size
- 4,220 bytes
- Repository stars
- 194
- License
- MIT
Design, implement, debug, or verify a remote turn-based multiplayer game whose rooms run on Cloudflare Durable Objects. Use for room and invite identity, reconnectable seats, WebSocket hibernation, concurrent turns, action idempotency, revision conflicts, or cross-browser game-state agreement. Do not trigger for generic Durable Object applications or local-only games.
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
# Cloudflare DO Turn-Based Multiplayer Model each room as one server-authoritative state machine. Keep the deterministic game reducer independent from Cloudflare transport so rules and concurrency can be tested without Wrangler. ## Establish authority Before editing, identify: - the room's deterministic Durable Object ID; - the public room code and any private invite credential; - how a device resumes and which seats it owns; - the persisted room revision and action identity; and - how clients recover after an unknown result. The URL room code is the room selector, not authentication. Store resume credentials per room, exchange private invites for device credentials, and remove invite secrets from the visible URL after exchange. Re-authorize the device against current room state on every mutation. Read [protocol-and-architecture.md](references/protocol-and-architecture.md) when changing URLs, identity, message schemas, persistence, or recovery. ## Serialize mutations Durable Objects serialize events, but handlers can interleave at external `await` boundaries. For every authoritative action: 1. enter one room mutation gate; …
Read the whole file at its exact version.
How to install
mdr add swyxio/skills/cloudflare-do-turn-based-multiplayer@sha256:acb91e9c20767c60The line at the top of this page pins the label git:20260820.cd23820, 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_gmb2gjlp43a2w5tx)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 30, 2026 and Aug 20, 2026, about one every 21 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260820.cd23820 latest | 2026-08-20 | cd23820 | 4,220 B | A | view · diff |
| git:20260730.8ef07d0 | 2026-07-30 | 8ef07d0 | 8,401 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 (4220 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
swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gmb2gjlp43a2w5tx GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/cloudflare-do-turn-based-multiplayer GET https://markdownregistry.com/api/v1/blob/acb91e9c20767c60bd2e49e0ec922eb122b457c7740e3a89bcea065ad9f0bbb9
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.