agent-rig-system SKILL.md skillC
agent-rig-system from ypares/rigup.nix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ypares/rigup.nix/agent-rig-system@git:20260427.cb4b52cPins git:20260427.cb4b52c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ypares/rigup.nix
- Path
riglets/agent-rig-system/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260427.cb4b52c, committed Apr 27, 2026
- First version recorded
- Jan 29, 2026
- Size
- 16,505 bytes
- Repository stars
- 95
- License
- MIT
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
# Agent Rig System ## Overview A **rig** is a collection of _riglets_ that provide knowledge and tools for AI agents. Rigs and riglets are packaged as Nix flake outputs, so they can both be used inside the project defining them and by other projects depending on it. ## Core Concepts ### Riglet A riglet is executable knowledge packaged with its dependencies, as a Nix module: - **Metadata**: When should this riglet be used, is it production-ready or experimental, etc. - **Knowledge**: SKILL.md + detailed `references/*.md` files documenting processes and recipes - **Tools**: Nix packages needed to execute those recipes - **Configuration**: Settings to adapt tools' behaviour to project context ### Rig A project-level structure that declares which riglets are active: - Uses `buildRig` to compose riglet modules - Builds combined tool environment declaratively - Exposes riglets' tools and documentation ### rigup A Nix library and CLI tool: http://github.com/YPares/rigup.nix #### rigup Nix library Main functions: …
Read the whole file at its exact version.
How to install
mdr add ypares/rigup.nix/agent-rig-system@sha256:5c553436aeff2b3dThe line at the top of this page pins the label git:20260427.cb4b52c, 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_45kf4rb2wiyzanuy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jan 29, 2026 and Apr 27, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260427.cb4b52c latest | 2026-04-27 | cb4b52c | 16,505 B | C | view · diff |
| git:20260427.534dedb | 2026-04-27 | 534dedb | 16,371 B | C | view · diff |
| git:20260211.5cc0691 | 2026-02-11 | 5cc0691 | 16,330 B | C | view · diff |
| git:20260203.f77b00e | 2026-02-03 | f77b00e | 16,246 B | C | view · diff |
| git:20260129.6f59885 | 2026-01-29 | 6f59885 | 16,250 B | C | view |
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (16505 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
ypares/rigup.nix · 95 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_45kf4rb2wiyzanuy GET https://markdownregistry.com/api/v1/resolve?ref=ypares/rigup.nix/agent-rig-system GET https://markdownregistry.com/api/v1/blob/5c553436aeff2b3d07a56372fc9c733afb0801090f9b1d903f528624c9b61386
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.