Windows anonymous pipes do not surface a child stdout EOF while the child
process stays alive. The three tests that simulate 'child closes protocol but
stays alive' therefore cannot be reproduced on Windows and hang until the
test timeout. Skip them on win32.
These tests spawn real ACP child subprocesses. On contended self-hosted
Windows runners the default 30s budget times out. Instead of raising the
global coverage timeout, give this file 2x the configured default
(DSH_COVERAGE_TEST_TIMEOUT_MS) so it follows future default changes.
Replace the TypeScript SDK's public arbitrary command/argv launch surface with the same-version dsh CLI, a named profile, ordered per-launch patches, optional process cwd, and explicit Harness home selection. Installed consumers use the built CLI; clean source checkouts use the package's src/bin.ts through an absolute tsx/esm loader and a source-only patch that omits build-generated Typert loading.
Materialize explicit or inherited environments at spawn time, keep profile-internal patches below caller patches, and resolve every caller-relative path before the child starts. The SDK subagent provider validates its optional CLI and patch files at plugin load and requires an isolated absolute child home.
Treat JSON-RPC initialize as the Loader-owned readiness point: Loader settlement joins entry imports, fiber lifecycle work, and synchronous effect registration, so the server needs no scheduler tick. A delayed profile entry registers a private adapter before initialize resolves, proving caller-supplied plugin routes are visible without fallback.
Update sdk-app ownership, server diagnostics, TypeScript SDK examples, nested-loader coverage, and session-upload replay layering together. The following commit contains only the regenerated SDK transcripts, keeping this API and lifecycle change directly reviewable.
Replace the standalone @deepseek-ai/dsh-acp-demo application with dsh --profile acp plus ordered example patches. The shipped acp-app bundle owns only the protocol bridge; every example overlay now targets shared dsh-base rows instead of copying a complete application tree.
Move launcher responsibilities into the ACP snapshot harness: it materializes profile patches, links required packages, reserves stdout for JSON-RPC, observes spawn and drain failures, and escalates process teardown deterministically. The relocated control-surface fixture and the ACP/subagent integration tests now exercise the real CLI/profile path.
This commit contains authored runtime, configuration, and test changes only. Generated transcript and projection churn is deliberately left for the next commit so reviewers can inspect the migration logic without hundreds of expected-output edits.
Review asked why the launcher special-cases one plugin's row. It no
longer does: the four shipped compositions move into the package
(presets/, in files), dsh-agent-presets resolves its own shipped root
and prepends it before configured roots (includeShippedRoot, default
true, opt-out for bare-machinery embedders), and the per-composition
derived patch, its spec, and the dump layer are deleted — profile-boot
and dump-config return to plain layer stacking. The always-load
guarantee now rides the schema default instead of patch ordering, so a
whole-config replacement keeps the shipped set and the squash, reload
freeze, and dump divergence stop being possible.
Gate globs, the web scaffold, and both preset browser lanes drop their
hand-fed shipped roots; the roster e2e keeps asserting configured roots
beside the shipped four against the built lib.
Fixes#2863.