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fix(web): keep the subagent registry in the host plane

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`dsh web` failed to boot: the aggressive plane split moved `subagents` and
its spawn/fork backends into the preset's entry-local realm, but
`dsh-host-apiproxy` is a host row that injects `subagents` to answer the
browser's cross-session queries, so it waited forever for a service only
sessions now provided. A per-session copy is wrong twice over — a provider
name registers once, so the second session would have collided anyway.

The registry and its backends go back to the host composition; the presets
keep the delegation TOOLS, which resolve that host registry. `workflows`
stays entry-local: nothing outside an agent reads it.

The web real-composition test could not have caught this, because it
disabled `api-gateway` — the very row whose pending injection names the
break. It now boots with the api-proxy enabled and the browse directory
picker substituted, so the boot audit covers the whole host-plane injection
graph. Re-introducing the old split makes it fail with the three pending
entries, which is how this was verified.
This commit is contained in:
Yichen Jiang
2026-08-04 12:46:57 +08:00
parent 3a60d97d21
commit 6595301afc
7 changed files with 51 additions and 56 deletions
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21
apps/cli/tests/web-agent-presets.spec.ts
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@@ -30,19 +30,22 @@ async function bootWeb(settingsFile: string, extra: PatchOptions[] = []): Promis
// outcome. Point it at a temp file for the same reason the roster below
// names only the shipped root.
{ id: 'settings', config: { path: settingsFile, watch: false } },
// Host rows with side effects outside this process: a bound port, a
// served asset tree, a telemetry exporter.
// Host rows with side effects outside this process: a bound port, a served
// asset tree, a telemetry exporter. `api-gateway` and `directory-picker`
// stay ENABLED on purpose — the api-proxy is the host row that injects
// `subagents`, `workspace`, and the rest of the agent plane, so disabling
// it would hide exactly the breakage this file exists to catch: a service
// moved into the presets that a host row still waits for. The boot audit
// is that assertion.
{ id: 'webserver', disabled: true },
{ id: 'telemetry-otel', disabled: true },
{ id: 'modules', disabled: true },
{ id: 'connection', disabled: true },
// NOT a side-effect row: the api-proxy cannot mount in THIS layer at all,
// because it injects `subagents` and the subagent registry moved into the
// presets here. That is the breakage a later layer returns to the host
// plane; when it does, this line comes out and the boot audit covers the
// whole host-plane injection graph again.
{ id: 'api-gateway', disabled: true },
// The shipped `-auto` chooser resolves its interaction from a running
// host and so waits for the webserver disabled above; the browse variant
// supplies `directoryPicker` without one.
{ id: 'directory-picker', disabled: true },
{ insert: [{ id: 'directory-picker-browse', name: '@deepseek-ai/dsh-host-directory-picker-browse' }] },
// The roster AppCLIEntry would patch in; only the shipped root, so a
// developer's own `~/.dsh/.preset` cannot change this test's outcome.
// `default` here is the COMPOSITION default — the base layer the settings
@@ -401,7 +404,7 @@ describe('the default preset as a user setting', () => {
})
describe('a session keeps the preset it was created with', () => {
it('records the preset the gateway guard reads', async () => {
it('refuses to adopt a live session under a different preset', async () => {
const handle = await ctx.agents.create({
sessionId: SessionId('preset-locked'),
meta: { agentPreset: 'core-web' },