# Conflicts: # docs/architecture.md # docs/config-catalog.md # docs/cordis-catalog/services.md # docs/core-data-structures/bash.md # docs/event-producer-consumer.md # docs/rfc/implemented/feature/2026-07-06-sandbox.md # docs/rfc/proposed/architecture/2026-06-20-generic-long-running-tool-runtime.md # examples/AGENTS.md # examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl # examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl # examples/acp-agent/tests/snapshots/advanced-toolchain/session.jsonl # examples/acp-agent/tests/snapshots/advanced-toolchain/system-prompt.golden.md # examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl # examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md # examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md # examples/acp-agent/tests/snapshots/permission-switching/system-prompt.golden.md # examples/acp-agent/tests/snapshots/skill-load/session.jsonl # examples/acp-agent/tests/snapshots/skill-load/system-prompt.golden.md # examples/acp-agent/tests/snapshots/text-turn/session.jsonl # examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md # examples/coding-agent/cordis.yml # examples/sandbox-acp-agent/tests/snapshots/escalation-approved/session.jsonl # examples/sandbox-acp-agent/tests/snapshots/escalation-rejected/session.jsonl # examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl # packages/bash/bash-local/README.md # packages/bash/bash-local/src/index.ts # packages/bash/bash-local/tests/executor.spec.ts # packages/bash/bash-sandbox/README.md # packages/bash/bash-sandbox/src/index.ts # packages/bash/bash/README.md # packages/bash/bash/src/index.ts # packages/bash/bash/src/types.ts # packages/bash/tool-bash/README.md # packages/bash/tool-bash/src/index.ts # packages/bash/tool-bash/tests/tools.spec.ts # packages/cordis/tool-cordis/src/api-catalog.ts # packages/core/agent-core/README.md # packages/core/agent-core/src/index.ts # packages/subagent/subagent/README.md # packages/subagent/tool-subagent/README.md # packages/subagent/tool-subagent/src/index.ts # packages/ui/acp-agent/README.md # packages/ui/acp/README.md # packages/ui/stdio-agent/README.md # packages/util/brand/src/index.ts # scripts/doc-budgets.manifest.json
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) |
timeout/ |
The timing/classification half of a timeout — clampTimeout/deadline/timeoutOf/TimeoutReason (pure functions, no harness deps); termination stays in each capability |
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-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).