plugin-authoring SKILL.md skillA

plugin-authoring from fahthiz/oasis is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add fahthiz/oasis/plugin-authoring@git:20261029.2b2a16a

Pins git:20261029.2b2a16a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
fahthiz/oasis
Path
skills/plugin-authoring/SKILL.md
Versions recorded
1
Latest version
git:20261029.2b2a16a, committed Oct 29, 2026
Size
2,458 bytes
Repository stars
5
License
Apache-2.0

Reference for writing OASIS / Claude Code plugins: manifest, commands, agents, skills, hooks, MCP and LSP servers, monitors, workflows, marketplaces, and how to test them.

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

# Writing a plugin

OASIS loads Claude Code plugins unchanged. A plugin is a directory:

```
my-plugin/
  .claude-plugin/plugin.json   # manifest (required)
  commands/*.md                # slash commands: /my-plugin:name
  agents/*.md                  # subagents (frontmatter: name, description, tools, model)
  skills/<name>/SKILL.md       # skills (frontmatter: name, description)
  hooks/hooks.json             # { "hooks": { "PreToolUse": [ { "matcher": "Bash", "hooks": [ { "type": "command", "command": "..." } ] } ] } }
  .mcp.json                    # MCP servers ({ "mcpServers": { ... } })
  .lsp.json                    # LSP servers
  monitors/monitors.json       # background monitors that wake the session
  workflows/*.js               # saved dynamic workflows: /my-plugin:name
```

## Manifest

```json
{ "name": "my-plugin", "version": "0.1.0", "description": "What it does", "author": { "name": "You" } }
```

`name` is kebab-case and becomes the namespace. Optional fields: `commands`, `agents`, `hooks`,
`mcpServers` (paths or inline objects that replace the defaults), `userConfig` (values asked for at
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add fahthiz/oasis/plugin-authoring@sha256:72236ce29e1e30bc

The line at the top of this page pins the label git:20261029.2b2a16a, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_2pg572glhl5f6aey.svg)](https://markdownregistry.com/a/art_2pg572glhl5f6aey)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 29, 2026.

versioncommittedcommitsizeaudit
git:20261029.2b2a16a latest2026-10-29 2b2a16a 2,458 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2458 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

GitHub

fahthiz/oasis · 5 stars · license Apache-2.0 · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2pg572glhl5f6aey
GET https://markdownregistry.com/api/v1/resolve?ref=fahthiz/oasis/plugin-authoring
GET https://markdownregistry.com/api/v1/blob/72236ce29e1e30bc05cc2dd516be955af035bbacfde3fba745cc7f0f8091e4fc

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.

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Every file in fahthiz/oasis

Other files named plugin-authoring

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