physics-interaction SKILL.md skillA
physics-interaction 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/physics-interaction@git:20260913.8f2d6d5Pins git:20260913.8f2d6d5 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/physics-interaction/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260913.8f2d6d5, committed Sep 13, 2026
- Size
- 3,562 bytes
- Repository stars
- 12
- License
- MIT
Use when pushing, carrying, throwing, stacking or constrained objects tunnel, jitter, double-move, lose ownership or fail to restore after release or load.
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
# Physics interaction ## Scope Own physical interaction state and motion authority, not the material reaction table, damage rules or vehicle handling. [Collision layers](../collision-layers/SKILL.md) owns filtering; [chemistry-verbs](../chemistry-verbs/SKILL.md) owns property reactions. Inspect units, body types, physics version and stepping ownership before tuning. ## Modes | Mode | Motion owner | |---|---| | dynamic-push | physics solver responds to authored contact/forces | | kinematic-carry | controller moves a swept collision body while held | | constraint-grab | physics constraint follows an authored target | ## Procedure 1. Define free/grab-pending/held/releasing states, allowed transitions, owner and stable body ID. Resolve competing grabs through the authoritative simulation. One system writes body motion per phase; parenting only the mesh is not a physical carry implementation. 2. Respect the engine's physics step. Distinguish sustained force from a one-shot impulse; avoid applying an impulse once per render frame. Publish mass/size ranges, collision proxies, damping, solver/substep and sleep/wake settings as tested project parameters, not universal constants. …
Read the whole file at its exact version.
How to install
mdr add jammyfu/open-game-skills/physics-interaction@sha256:f58cd479707e4849The line at the top of this page pins the label git:20260913.8f2d6d5, 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_uja5tw4nsculshov)
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Versions
The registry has recorded 1 version of this file, committed on Sep 13, 2026.
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 (3562 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_uja5tw4nsculshov GET https://markdownregistry.com/api/v1/resolve?ref=jammyfu/open-game-skills/physics-interaction GET https://markdownregistry.com/api/v1/blob/f58cd479707e48499c45833f00ed27c699702bf09dfcbdc40aaf1c4b1a0740d5
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.