Child Process Execution with Effect v4

Overview

The ChildProcess module provides type-safe, composable process execution with automatic resource cleanup via Scope. Commands are AST values — built first with make and pipeTo, then executed via the ChildProcessSpawner service.

When to use this skill:

• Running shell commands or external programs
• Capturing command output as string, lines, or stream
• Piping commands together (shell pipeline equivalent)
• Streaming output from long-running processes
• Managing process lifecycles with scoped cleanup

Note: This skill covers child process execution, NOT @effect/cli for building CLI applications.

Import Pattern