Just-bash: TypeScript Virtual Bash Environment for AI Agents
By
tosh
A five-star bake. Worth schmearing, sharing, saving.
Summary
Just-bash is a virtual bash environment written in TypeScript with an in-memory filesystem, designed specifically for AI agents. It provides broad support for standard Unix commands and bash syntax, with optional support for curl, Python, JavaScript/TypeScript, and SQLite. The tool features isolated shell states for each exec() call while maintaining a shared filesystem across calls, and allows for custom command extensions. The software is currently in beta with security considerations noted.
Key quotes
· 4 pulledA virtual bash environment with an in-memory filesystem, written in TypeScript and designed for AI agents.
Broad support for standard unix commands and bash syntax with optional curl, Python, JS/TS, and sqlite support.
Each exec() call gets its own isolated shell state — environment variables, functions, and working directory reset between calls. The filesystem is shared across calls, so files written in one exec() are visible in the next.
Note: This is beta software. Use at your own risk and please provide feedback. See security model.
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