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# Conflicts: # docs/config-catalog.md # docs/module-graph.md # docs/rfc/INDEX.md # packages/README.md # packages/bash/bash-local/README.md # packages/bash/bash/README.md # packages/bash/tool-bash/README.md # packages/bash/tool-bash/tests/tools.spec.ts # packages/cordis/tool-cordis/src/api-catalog.ts # packages/examples/acp-demo/src/index.ts # packages/examples/acp-demo/tests/acp-agent.spec.ts # packages/examples/agent-spine-demo/README.md # packages/examples/agent-spine-demo/src/index.ts # packages/examples/agent-spine-demo/tests/agent-core.spec.ts # packages/examples/stdio-demo/src/index.ts # packages/examples/stdio-demo/tests/stdio-agent.spec.ts # packages/util/README.md # pnpm-lock.yaml # tsconfig.build.json # tsconfig.json
2.7 KiB
util/ — low-level shared utilities
Zero-dependency primitives shared across the other groups. A package lands here when it owns a tiny, foundational type or helper that several capability families need but that belongs to none of them — keeping it out of any one group avoids a capability package depending on an unrelated one just to reach a shared primitive. These are support packages: small, stable, and free of harness dependencies.
| Package | Role |
|---|---|
brand/ |
The type-only Branded<B> nominal-typing primitive (no runtime code, no harness deps) |
home/ |
Canonical DSH_HOME resolution from explicit config, environment, or ~/.dsh (no harness deps) |
paths/ |
Shared filesystem path constants and helpers for harness user data |
timeout/ |
The timing/classification half of a timeout — clampTimeout/deadline/timeoutOf/TimeoutReason (pure functions, no harness deps); termination stays in each capability |
retention/ |
Bounded model-facing output — ItemRetainer/TextRetainer + neutral notice helpers (pure, no harness deps); business semantics stay in each tool |
dsh-brand is the canonical case: it owns ONLY the Branded<B> helper, so a capability package can brand the ids it owns (dsh-tasks's TaskId, dsh-session's SessionId, …) by depending on dsh-brand alone, without pulling in an unrelated package just to reach Branded.
dsh-home gives every package the same configurable Harness home without assigning that cross-cutting fact to bash, skills, or a composition bundle. It resolves an explicit value before $DSH_HOME, falls back to ~/.dsh, and returns an absolute path without caching, creating, or mutating anything.
dsh-timeout follows the same shape for the timeout family: dsh-bash and dsh-web-fetch-local each fuse a caller's cancellation with a deadline and later classify "timed out" vs "cancelled" by depending on dsh-timeout alone. It deliberately owns only the timing/classification half — the termination (SIGKILL a process group, tear down a fetch socket) stays in each capability, because no shared layer can own every capability's kill (see the timeout-library RFC).
dsh-retention is the same split for bounded tool output: a tool (glob/grep/bash/web_fetch/web_search) feeds items or text into a retainer and gets back what it kept and exactly what it omitted — while grouping, exit codes, provider errors, and recovery prose stay tool-owned. It deliberately owns only the retention mechanic; truncated is a budget fact, never an "incomplete inspection" state (see the retention-library RFC).