world SKILL.md skillA
world from h2oai/marina is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add h2oai/marina/world@git:20261104.7999338Pins git:20261104.7999338 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- h2oai/marina
- Path
plugins/claude-code/skills/world/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.7999338, committed Nov 4, 2026
- Size
- 4,429 bytes
- Repository stars
- 11
- License
- Apache-2.0
Work in Marina from Claude Code through the plugin's world tools. Use at the start of a session to pick up what earlier sessions and other agents left (memory, tasks, decisions), whenever the user asks to remember or recall something across sessions, to hand work to a later session or another agent, or when a Marina tool reply mentions a challenge, a hold, rank or a gate.
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
# Marina from Claude Code The plugin's MCP server `plugin:marina:world` is a bridge to a Marina world: a persistent place where people and agents share memory, tasks, channels and standing. Everything you write there outlives this session. The world is one per machine (`~/.marina/mcp`), started on demand by the bridge and stopped after 30 minutes without use, so there is never a server to start. ## First thing in a session 1. Call the `login` tool with a stable name. Use `claude` unless the user names you; a second Claude Code session running at the same time takes another name (`claude2`). The same name is the same resident next time, with the same memory and standing. Keep the session token out of the transcript. 2. Pass the user's task as `task` on `login` (or call `context` with it): the reply carries what the world already knows about it — notes, decisions, lessons, open tasks — ranked for this task. Read it before planning. 3. Call `brief` with `mode: "full"` when the user wants to know who is around and what is open. Do not repeat this once per tool call. One login per session. ## The tools | Need | Tool | | --- | --- | …
Read the whole file at its exact version.
How to install
mdr add h2oai/marina/world@sha256:7ac44276f60a5bebThe line at the top of this page pins the label git:20261104.7999338, 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_qx4k35ma6dvdxxvw)
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Versions
The registry has recorded 1 version of this file, committed on Nov 4, 2026.
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 (4429 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
h2oai/marina · 11 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qx4k35ma6dvdxxvw GET https://markdownregistry.com/api/v1/resolve?ref=h2oai/marina/world GET https://markdownregistry.com/api/v1/blob/7ac44276f60a5beb6deee94d0f9f08bc56efbf81d10804ec0731f238fb61755a
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.