# Codeact Install Monty

> Switch codeact to the Monty backend (Pydantic Monty — minimal Python interpreter in Rust, sub-microsecond startup). Use when user wants to switch to monty, use monty backend, or needs lightweight sandboxing.

- Skill: `jsturtevant/codeact-install-monty` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add jsturtevant/codeact-install-monty`
- Raw SKILL.md: https://api.skillmd.com/api/skills/jsturtevant/codeact-install-monty/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: jsturtevant (https://skillmd.com/u/jsturtevant)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/jsturtevant/codeact-install-monty

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# codeact-install-monty

Switch codeact to the **Monty** backend (Pydantic Monty).

```bash
bash "$SKILL_DIR/run.sh"
```

Runs preflight for monty, rediscovers tools, and rewrites the instructions
and agent files with backend pinned to `monty`.