description: "Package map for the zero-dependency utility family: atomic file writes, branded ids, harness home paths, the launch environment, native commands, output retention, and timeouts."
The `util/` group gives capability packages shared mechanical primitives instead of duplicate implementations. It covers atomic writes, branded ids, UUIDs, Harness-home paths, launch environments, native commands, output retention, and timeout handling. Every package here is a library: it registers no service or event, and the consuming capability retains the business semantics.
## Table of Contents
- [Packages](#packages)
- [Related documentation](#related-documentation)
- [Dev Note](#dev-note)
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## Packages
Each package provides one primitive; open a package page for how to use it.