Crawl up stairs

Skill sumitaich1998/slavex/.cursor/skills/crawl-up-stairs

Talk to a humanoid in a 3D apartment — on screen, in VR, or in your real room (MR). Voice/text commands, an open-source BYO-key LLM brain, and ~950 composable motion skills. Three.js + WebXR (Quest 3).

Install

npx -y skills add sumitaich1998/slavex --skill crawl-up-stairs

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

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What its author says it does

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Climbs the stairs on hands and knees, via a low sequence that raises root.y. Use when a command mentions crawl up the stairs, climb the steps on hands and knees, scramble up the staircase, or go up the stairs on all fours.

SKILL.md

1.6 KB, as published. Nobody here has run it

crawl-up-stairs

A hands-and-knees stair climb: reach a hand up to the next step as the opposite knee drives up, body rising.

Composes: move-arm + move-leg + move-torso

How

Use a sequence with loop:false. Frame root is ABSOLUTE; compute the travel axis from state.position+state.faceDeg (0=+Z, 90=+X). The example assumes origin facing +Z.
Torso forward (Spine+X~55); alternate reaching a hand up and driving the opposite knee onto the next step; raise root.y each beat.
durationMs ~2800.

Example

"crawl up the stairs" -> {"durationMs":2800,"say":"Crawling up the steps.","sequence":{"loop":false,"frames":[{"t":0,"pose":{"Spine":[55,0,0],"LeftUpperArm":[130,0,90],"RightUpLeg":[80,0,0],"RightLeg":[90,0,0]},"root":{"y":0,"z":0}},{"t":0.5,"pose":{"RightUpperArm":[130,0,-90],"LeftUpLeg":[80,0,0],"LeftLeg":[90,0,0]},"root":{"y":0.2,"z":0.3}},{"t":1,"pose":{"Spine":[0,0,0],"LeftUpperArm":[0,0,90],"RightUpperArm":[0,0,-90],"LeftUpLeg":[0,0,180],"RightUpLeg":[0,0,180],"LeftLeg":[0,0,0],"RightLeg":[0,0,0]},"root":{"y":0.4,"z":0.6}}]}}

Limits & posture

Keep ≥1 foot grounded except at a jump's airborne apex; stay inside human joint ranges and keep weight over the support — see balance-and-posture.