Glossary

Arena

A centralized memory pool managed by the Crush VM. All complex objects (Strings, Arrays, Maps) reside in the Arena to ensure safety and isolation.

CASM (Crush Assembly)

The low-level, target-independent instruction set executed by the Crush VM.

CAST (Crush AST)

The intermediate JSON representation of a program’s semantic intent, generated by language walkers.

Capsule

The primary unit of isolation and distribution in Crush. A capsule contains a manifest (Capsule.toml) and optionally a payload (CASM or native code).

Capability

A specific, fine-grained permission granted to a capsule (e.g., fs.read). Capabilities are the only way capsules can interact with the host or each other.

Exo-Core

The minimal virtualization layer of the Crush vOS. It manages the HAL, VFS, and capsule loading.

HAL (Hardware Abstraction Layer)

The interface between the vOS and the physical host hardware.

Native Capsule

A capsule that is linked directly into the crush binary for performance or bootstrapping reasons (e.g., core.fs).

Walker

A compiler component that translates source code from a specific language into CAST.

Vortex

The interactive shell and REPL for the Crush environment.