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Updated today

by rig-c

core

AI-authored 2D rigging and animation, verified before it is written. rigc compiles a rig spec into skeleton data in the Spine 4.3 format, gates it with named assertions held to a spine-core round trip's verdicts, and emits nothing that fails. Ships as an agent skill.

  • Active — Updated in the last 14 days
Works with
  • Claude
View on GitHub (opens in a new tab)

21 GitHub stars (21)

+11 in 30 days

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Oct 31: +11 in total; the busiest day was Oct 24 with +2 stars.Oct 1: 0 starsOct 2: 0 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: 0 starsOct 7: 0 starsOct 8: +1 starsOct 9: 0 starsOct 10: 0 starsOct 11: +1 starsOct 12: 0 starsOct 13: 0 starsOct 14: +1 starsOct 15: +1 starsOct 16: 0 starsOct 17: 0 starsOct 18: 0 starsOct 19: 0 starsOct 20: +1 starsOct 21: 0 starsOct 22: +1 starsOct 23: +1 starsOct 24: +2 starsOct 25: 0 starsOct 26: 0 starsOct 27: 0 starsOct 28: +1 starsOct 29: +1 starsOct 30: 0 starsOct 31: 0 stars
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  • 5 skills (5 skills found in its SKILL.md files)
  • 6 forks (6 forks)
  • Today last update (Last updated today)

Install

Skills CLI

npx skills add rig-c/core

Asks which skills and agents to install. Just one: npx skills add rig-c/core --skill rigc-face — add -g for every project.

Claude Code

git clone https://github.com/rig-c/corecp -r "core/skills/rigc-face" ~/.claude/skills/

Copies the rigc-face skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add rig-c/core

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • rigc-face

    Author a face on plain Spine data with rigc — a blink, a gaze shift, a breathing portrait and a head turn a few degrees off axis, built from deform timelines and per-part parallax. Use when the request is a talking or living portrait, a standing character, an expression or a head turn, such as "rig this face", "make the portrait blink and look around" or "turn the head". Not for Live2D file conve…

    skills/rigc-face/SKILL.md on GitHub (opens in a new tab)

  • rigc-ingest

    Work with a Spine skeleton.json somebody else authored — exported from the Spine editor or another tool — using rigc. Read and validate it, understand a complaint rigc raised about it, decompile it into rigc specs with `rigc ingest`, normalise, re-pivot or rename it, and extend it with an animation it does not have. Use when the input is an existing skeleton.json with its .atlas and page images r…

    skills/rigc-ingest/SKILL.md on GitHub (opens in a new tab)

  • rigc-motion

    Author a Spine animation with rigc from key poses — an idle, a loop, a move from one picture to another — with timing and spacing, ease in and out, anticipation, arcs, overlap, follow-through, squash and stretch, and candidate variants a person can choose between. Use when the request is a movement on an existing or planned rig, in the animator's words too: "animate this rig", "make it breathe",…

    skills/rigc-motion/SKILL.md on GitHub (opens in a new tab)

  • rigc-rigging

    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", bef…

    skills/rigc-rigging/SKILL.md on GitHub (opens in a new tab)

  • rigc

    Author, build and validate Spine 4.3 skeleton data (skeleton.json plus its .atlas) from loose part PNGs with rigc, the rig compiler that verifies its own output through a spine-core round-trip before writing it. Use for any request to make a Spine rig or Spine animation from PNG parts, or where the source is a Live2D, Unity or video model whose pictures you can render, to run or read rigc build,…

    skills/rigc/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.