ik-foot-locking SKILL.md skillA
ik-foot-locking from jammyfu/open-game-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jammyfu/open-game-skills/ik-foot-locking@git:20260913.ed0ec2cPins git:20260913.ed0ec2c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jammyfu/open-game-skills
- Path
skills/disciplines/ik-foot-locking/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260913.ed0ec2c, committed Sep 13, 2026
- First version recorded
- Sep 12, 2026
- Size
- 1,995 bytes
- Repository stars
- 12
- License
- MIT
Use when rendered feet need contact locking or terrain adaptation after locomotion/animation, including varied skeleton joints, slopes, stairs and moving surfaces without making IK the gameplay movement owner.
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
# IK foot locking IK is a **presentation pose correction** after the authoritative root/body movement and source animation pose. ## Contact schema Select an available contact marker: toe when present/useful, otherwise a **foot/ankle** marker or project-defined sole/contact point. Do not require a toe joint on every rig. Contact detection may combine relative velocity, height/distance, animation phase and ground probe with authored hysteresis/debounce. Thresholds and durations are project/scale data. For a **moving** or rotating support, store the lock anchor in support-local or otherwise stable reference space and evaluate actor/contact motion **relative** to that surface so the foot follows it without world-space skating. ## Rules 1. `locomotion`/physics owns root movement; IK edits leg/foot pose and never fabricates grounding/gameplay collision. 2. Lock point/joint is chosen from the rig/contact schema, not universally toe-vs-heel. 3. Leg extension is clamped to an anatomical/rig range. Optional **pelvis** compensation may be used when authored, bounded and presentation-only; it is not universally forbidden or required. …
Read the whole file at its exact version.
How to install
mdr add jammyfu/open-game-skills/ik-foot-locking@sha256:609413a055653d9eThe line at the top of this page pins the label git:20260913.ed0ec2c, 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_cggbsy7jx5oqvgxr)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 12, 2026 and Sep 13, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260913.ed0ec2c latest | 2026-09-13 | ed0ec2c | 1,995 B | A | view · diff |
| git:20260912.a22b95e | 2026-09-12 | a22b95e | 1,044 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 (1995 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
jammyfu/open-game-skills · 12 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cggbsy7jx5oqvgxr GET https://markdownregistry.com/api/v1/resolve?ref=jammyfu/open-game-skills/ik-foot-locking GET https://markdownregistry.com/api/v1/blob/609413a055653d9e855a6ec3becb5f90e5685c41700f45937417e688f7ebda9f
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.