Is this skill safe for production environments?

Yes, it is designed with security in mind, using array arguments for shell commands to prevent injection attacks and including TOCTOU protection for file integrity.

Does it support both synchronous and asynchronous operations?

Yes, it provides both sync and async versions for most common functions including reading, writing, directory checks, and existence testing.

Can I use this for hashing files or data?

Absolutely. The skill includes built-in support for SHA256 for cryptographic needs and xxHash64 (via fastHash) for extremely fast non-cryptographic caching operations.

Why use bun-fs-helpers instead of node:fs?

These helpers leverage Bun's native performance, use less token overhead for AI interactions, and provide built-in safety against command injection compared to standard Node.js modules.

Bun Native Filesystem Utilities

Name: Bun Native Filesystem Utilities
Author: nathanvale

bynathanvale

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セキュリティとテスト

Provides secure, token-efficient, Bun-native filesystem operations for Claude Code workflows without node:fs dependencies.

概要

This skill integrates high-performance, Bun-native filesystem utilities into Claude Code, replacing standard Node.js FS modules with faster, more secure alternatives. It leverages Bun's native APIs (Bun.file, Bun.write, and Bun.spawn) to provide command-injection safe operations, recursive directory management, and atomic file updates. Designed for developers who prioritize speed and security, it includes built-in TOCTOU protection and efficient hashing, making it an essential toolkit for automation scripts, data processing, and tool-building within the Bun runtime environment.

主な機能

Comprehensive utility set including SHA256 hashing, fast xxHash64, and deep equality checks.
Advanced security features including TOCTOU (Time-of-Check to Time-of-Use) protection.
Pure Bun-native implementation using Bun.file() and Bun.write() for maximum performance.
Token-efficient file operations designed specifically for LLM-driven development environments.
1 GitHub stars
Command injection protection via array-based shell argument handling in all system calls.

ユースケース

Building safe automation scripts that handle user-provided paths without risking command injection.
Migrating existing Node.js filesystem code to Bun-native APIs for better performance.
Implementing robust file processing pipelines with content-based hashing and atomic updates.

概要

主な機能

Comprehensive utility set including SHA256 hashing, fast xxHash64, and deep equality checks.
Advanced security features including TOCTOU (Time-of-Check to Time-of-Use) protection.
Pure Bun-native implementation using Bun.file() and Bun.write() for maximum performance.
Token-efficient file operations designed specifically for LLM-driven development environments.
1 GitHub stars
Command injection protection via array-based shell argument handling in all system calls.

ユースケース

Building safe automation scripts that handle user-provided paths without risking command injection.
Migrating existing Node.js filesystem code to Bun-native APIs for better performance.
Implementing robust file processing pipelines with content-based hashing and atomic updates.