README.md 3.1 KB
description: "Package map for shared utilities: atomic file writes, branded ids, deques, JSON values, harness home paths, launch environment, native commands, output retention, time zones, and timeouts."
kind: "package-group"
util/ — shared utilities
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Summary
The util/ group gives capability packages shared mechanical primitives instead of duplicate implementations. It covers atomic writes, branded ids, deques, lossless JSON values, UUIDs, Harness-home paths, launch environments, outbound proxy policy, native commands, output retention, time-zone canonicalization, and timeout handling. Every root entry here is a library: it registers no product service or event, and the consuming capability retains the business semantics.
Table of Contents
Packages
Each package provides one primitive; open a package page for how to use it.
| Package | Role |
|---|---|
brand/ |
Nominal string types and their stateless constructor |
package-manifest/ |
Shared TypeScript declarations for package manifests |
crypto/ |
Mints RFC 9562 v4 UUIDs from the cross-runtime crypto.getRandomValues primitive |
deque/ |
Provides amortized constant-time queue operations with bounded vacant storage |
values/ |
Validates, snapshots, compares, and freezes lossless JSON-compatible values |
home-paths/ |
Resolves the single Harness home and joins shared user-data paths |
http-proxy/ |
Resolves one outbound proxy policy and installs it for fetch, SDK agents, and spawned children |
launch-environment/ |
Frozen launch environment that remembers which layer supplied each value |
atomic-write/ |
Atomic file replacement and cross-process writer locking |
native-command/ |
Runs host-native commands directly, never through a shell string |
workspace-path/ |
Provides browser-safe Workspace path and display helpers |
output-retention/ |
Bounds model-facing output and reports exact omission metadata |
time/ |
Validates and canonicalizes a caller-reported IANA time zone |
timeout/ |
Deadline arithmetic, signal fusion, and timeout-versus-cancel classification |
Related documentation
- Root package map — where
util/sits among all package groups. - Generated configuration catalog — the library-package index this group forms part of.
- Adding a package cookbook — how a new shared primitive lands in this group.