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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)

22 GitHub stars (22)

+12 in 30 days

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Nov 6: +12 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 starsNov 1: 0 starsNov 2: 0 starsNov 3: 0 starsNov 4: 0 starsNov 5: +1 starsNov 6: 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, a head turn (from a flat sheet a few degrees off axis or a per-vertex depth map across its turn ceiling) and slider-driven face dials, built from closed-form deform transforms, derived group tracks, per-part parallax and socket alpha clipping. Use when the request is a talking or living portrait, a standing…

    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 with named assertions 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, validate,…

    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.