Chisel

Chisel is a Rust-powered, security-hardened toolset enabling precise Unix-native file operations for AI agents and Model Context Protocol (MCP) servers. Chisel reduces token costs and context size for agent-driven file access by applying operations through traditional Unix commands (like grep, sed, awk) and unified diffs, with strict root path confinement and whitelisting for safety. It is designed for agent and MCP server developers who require secure, efficient and embeddable file manipulation capabilities in Rust, Node.js (via WASM), and Python environments.