Crate fusabi_stdlib_ext 

fusabi-stdlib-ext

Extended standard library modules and domain packs for Fusabi.

This crate provides optional stdlib modules that extend Fusabi’s capabilities:

Core Modules

• Process - Execute system processes with timeout and environment control
• Fs - Filesystem operations (read, write, list, glob)
• Path - Path manipulation (join, normalize, resolve)
• Env - Environment variable access
• Format - String formatting (sprintf, templating)
• Net - Network operations (HTTP requests)
• Time - Time and duration utilities
• Metrics - Counter, gauge, histogram primitives

Extended Modules

• Terminal - Terminal I/O, key events, clipboard, colors
• GPU - GPU metrics via NVML (utilization, memory, temperature)
• FsStream - File streaming with backpressure (tail, chunked reads)
• NetHttp - Enhanced HTTP client (retries, streaming, custom options)

Domain Packs

• terminal-ui - Ratatui/TUI widgets and helpers
• observability - Logging, tracing, metrics integration
• k8s - Kubernetes API bindings
• mcp - MCP (Model Context Protocol) helpers

Safety

All modules follow a default-deny security model:

• Filesystem access requires explicit path allowlists
• Network access requires explicit host allowlists
• Process execution requires explicit permission
• All operations respect configured timeouts

Quick Start

use fusabi_stdlib_ext::{StdlibRegistry, StdlibConfig};

// Create registry with default modules
let config = StdlibConfig::default();
let registry = StdlibRegistry::new(config)?;

// Register modules with an engine
registry.register_all(&mut engine)?;

Modules

env

Environment module.

format

Format module.

fs

Filesystem module.

path

Path manipulation module.

process

Process execution module.

time

Time module.

Structs

HostAllowlist

Allowlist for network hosts.

ModuleConfig

Configuration for a specific module.

PathAllowlist

Allowlist for filesystem paths.

SafetyConfig

Safety configuration for stdlib operations.

StdlibConfig

Configuration for the stdlib registry.

StdlibRegistry

Registry for stdlib modules.

Enums

Error

Errors that can occur during stdlib operations.

Constants

VERSION

Crate version for compatibility checks.

Type Aliases

Result

Result type alias using [Error].