# Bear Crawl Backward

> Bear-crawls backward on hands and feet with the knees off the floor, keeping facing, via a low translating sequence. Use when a command mentions bear crawl backward, reverse bear crawl, crawl backward on hands and feet, or bear crawl in reverse.

- **Type:** Skill
- **Install:** `agentstack add skill-sumitaich1998-slavex-bear-crawl-backward`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [sumitaich1998](https://agentstack.voostack.com/s/sumitaich1998)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [sumitaich1998](https://github.com/sumitaich1998)
- **Source:** https://github.com/sumitaich1998/slavex/tree/master/.cursor/skills/bear-crawl-backward

## Install

```sh
agentstack add skill-sumitaich1998-slavex-bear-crawl-backward
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# bear-crawl-backward

A flat-back bear crawl moving backward (opposite hand/foot), knees hovering. Translate `root` while OMITTING `faceDeg` so the heading holds.

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. Make `z` more negative; do NOT set `faceDeg`. Keep `root.y`~-0.45.
- Torso forward (`Spine`+X~55); drive opposite hand and foot back together.
- `durationMs` ~2600.

## Example
- "bear crawl backward" -> `{"durationMs":2600,"say":"Bear crawl, reverse.","sequence":{"loop":false,"frames":[{"t":0,"pose":{"Spine":[55,0,0],"LeftUpperArm":[130,0,90],"RightUpLeg":[60,0,0],"RightLeg":[80,0,0]},"root":{"y":-0.45,"z":-0.4}},{"t":0.5,"pose":{"RightUpperArm":[130,0,-90],"LeftUpLeg":[60,0,0],"LeftLeg":[80,0,0]},"root":{"y":-0.45,"z":-0.8}},{"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,"z":-1.2}}]}}`

## 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`.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [sumitaich1998](https://github.com/sumitaich1998)
- **Source:** [sumitaich1998/slavex](https://github.com/sumitaich1998/slavex)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-sumitaich1998-slavex-bear-crawl-backward
- Seller: https://agentstack.voostack.com/s/sumitaich1998
- Browse the marketplace: https://agentstack.voostack.com/browse

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