{"id":58873,"library":"cap-std","title":"Cap-std","description":"Capability-based version of the Rust standard library.","status":"active","version":"4.0.2","language":"rust","source_language":null,"source_url":"https://github.com/bytecodealliance/cap-std","tags":["capability","security","filesystem","sandbox"],"install":[{"cmd":"# Cargo.toml\n[dependencies]\ncap-std = \"4.0.2\"","lang":"toml","label":"Cargo.toml"},{"cmd":"cargo add cap-std","lang":"bash","label":"cargo add"}],"dependencies":[],"imports":[{"symbol":"Dir","correct":"use cap_std::fs::Dir;"}],"quickstart":{"code":"use cap_std::fs::Dir;\n\nfn main() -> std::io::Result<()> {\n    let dir = Dir::open(\".\")?;\n    println!(\"Opened directory\");\n    Ok(())\n}","lang":"rust","description":"Opens a directory with capability-based security."},"warnings":[{"fix":"Enable features like 'fs_utf8' for full compatibility","message":"Not all std APIs are available; some require feature flags","severity":"gotcha","affected_versions":">=4.0.0"}],"env_vars":null,"search_vec":"'base':6 'cap':2 'cap-std':1 'capability-bas':4 'capabl':5,13 'filesystem':15 'librari':12 'rust':10 'sandbox':16 'secur':14 'standard':11 'std':3 'version':7","created_at":"2026-06-16T16:41:45.886022+00:00","updated_at":"2026-06-16T16:41:45.886022+00:00","problems":[],"ecosystem":"crates","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/bytecodealliance/cap-std","github":"https://github.com/bytecodealliance/cap-std","docs":"https://docs.rs/cap-std/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility","other"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-16","next_check":"2026-12-13","install_tag":null}}