rigc-rigging SKILL.md skillA
rigc-rigging from firejune/rigc is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add firejune/rigc/rigc-rigging@git:20261014.844d2a1Pins git:20261014.844d2a1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- firejune/rigc
- Path
skills/rigc-rigging/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261014.844d2a1, committed Oct 14, 2026
- First version recorded
- Sep 24, 2026
- Size
- 3,739 bytes
- Repository stars
- 17
- License
- a license file GitHub does not identify
Decide a Spine rig's hierarchy with rigc — how many bones, where each pivot sits, what hangs off what, offsets, chains and what a chain can reach, siblings versus chains, constraints as structure — and which of those decisions the reference frames can check. Use when the request is a skeleton from loose part PNGs, such as "rig these parts", "make a Spine skeleton" or "where do the joints go", before any motion is authored. Not for Live2D, cutting an illustration into parts, or VTuber-style…
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
# Rigging — the hierarchy itself Load this when the request is a **skeleton rather than a movement**: loose part PNGs in, a bone hierarchy out. Every rule below is owned by [RIGGING.md](https://github.com/rig-c/core/blob/main/docs/RIGGING.md); this file says when to open it and what it will not do for you. 📖 **A failure line ends with the command that prints its row of the guide** — ` (see rigc guide <RULE>)`. Run that command first, before reading anything else: it prints that rule's row of the shipped guide and nothing else. `rigc guide §<n>` (and `§<n>.<m>`, `§<n>.<m>.<k>`) prints the section's heading, own prose and subsection index from `docs/AUTHORING.md`; add `--all` to include subsection bodies. A leaf prints its full text either way. Sizes describe full ledger spans; `--all` with a rule name is refused, exit 2. A compile error points at its stable `CE_` code row. `rigc guide §5.1.<k>` prints a numbered compile-error group of at most 30,000 UTF-8 bytes, and `rigc guide §5.1` prints the introduction and index within that same limit; only legacy uncoded library errors point at `§5.1`. ## Non-negotiables …
Read the whole file at its exact version.
How to install
mdr add firejune/rigc/rigc-rigging@sha256:406992dd492b8cfcThe line at the top of this page pins the label git:20261014.844d2a1, 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_culnfit6qbgy6vbl)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Sep 24, 2026 and Oct 14, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.844d2a1 latest | 2026-10-14 | 844d2a1 | 3,739 B | A | view · diff |
| git:20261014.91a1342 | 2026-10-14 | 91a1342 | 3,460 B | A | view · diff |
| git:20261013.907e820 | 2026-10-13 | 907e820 | 3,297 B | A | view · diff |
| git:20261011.f2bd939 | 2026-10-11 | f2bd939 | 2,927 B | A | view · diff |
| git:20261008.c5f9972 | 2026-10-08 | c5f9972 | 2,945 B | A | view · diff |
| git:20260924.4fdf650 | 2026-09-24 | 4fdf650 | 2,955 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 (3739 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
firejune/rigc · 17 stars · license a license file GitHub does not identify · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_culnfit6qbgy6vbl GET https://markdownregistry.com/api/v1/resolve?ref=firejune/rigc/rigc-rigging GET https://markdownregistry.com/api/v1/blob/406992dd492b8cfc397aabb0f6fa6191d0cdc7151c8d48a4e83aa4bae1d8f768
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.