jolt-driving SKILL.md skillA
jolt-driving from wolffe/three.js-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wolffe/three.js-skills/jolt-driving@git:20261031.845cf45Pins git:20261031.845cf45 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wolffe/three.js-skills
- Path
skills/physics/jolt-driving/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261031.845cf45, committed Oct 31, 2026
- First version recorded
- Oct 28, 2026
- Size
- 24,990 bytes
- Repository stars
- 3
- License
- MIT
Use when a Three.js scene needs a drivable wheeled vehicle (car, truck, SUV, optionally towing a trailer) on Jolt physics (jolt-physics wasm-compat) over streamed heightfield terrain. Ships a Jolt world (layers, fixed step, body helpers, heightfield chunks, budgeted retirement, guarded ray casts), a tuned VehicleConstraint vehicle with per-surface tyre grip, and a trailer hitch.
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
# Jolt driving Target: Three.js 0.187.0 (`three` for the maths; the kit draws nothing) and jolt-physics 1.0.0, the `wasm-compat` build. Three companion files sit in this folder. Copy them into the project. They import only `three`, and the caller passes in the Jolt namespace it initialised: - `scripts/jolt-world.js`: `createJoltWorld(Jolt, options)` and `createHeightfieldRing(world, samplesFor, options)` - `scripts/jolt-vehicle.js`: `class WheeledVehicle`, `VEHICLE_DEFAULTS`, `SURFACES` - `scripts/jolt-towing.js`: `class TowHitch`, `TRAILER_DEFAULTS` ## What it is A four-wheel vehicle driven by Jolt's own `VehicleConstraint` and `WheeledVehicleController`. Jolt solves suspension, tyre slip, weight transfer and the drivetrain. On top sits a thin handling layer, and every constant in it was settled by driving tests. It covers steering smoothing and taper, a brake pedal that reverses once the vehicle has stopped, a holding brake with hysteresis, a park pin that puts the body to sleep, friction curves per surface, a handbrake slide, extra gravity in the air, water buoyancy and drag, and a fell-through net. Around the vehicle the kit has a world with two layers, heightfield… …
Read the whole file at its exact version.
How to install
mdr add wolffe/three.js-skills/jolt-driving@sha256:47ffc8e4baeee01fThe line at the top of this page pins the label git:20261031.845cf45, 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_tbye22yeeljxw53s)
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Versions
The registry has recorded 2 versions of this file, between Oct 28, 2026 and Oct 31, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261031.845cf45 latest | 2026-10-31 | 845cf45 | 24,990 B | A | view · diff |
| git:20261028.62f2e2f | 2026-10-28 | 62f2e2f | 24,990 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 (24990 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
wolffe/three.js-skills · 3 stars · license MIT · pushed 2026-11-02 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_tbye22yeeljxw53s GET https://markdownregistry.com/api/v1/resolve?ref=wolffe/three.js-skills/jolt-driving GET https://markdownregistry.com/api/v1/blob/47ffc8e4baeee01ff941b27440bb37f04c7feb3d3c6a550dd9b0c493931e9f8f
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.