feat(agent-presets): make the default preset a user setting

`config.default` becomes the composition base of an `agent-presets` settings
namespace, so the user document layers over the deployment's engineering
default and a person can change which preset new sessions get without a
restart.

The value is read per resolution rather than snapshotted: a hot-reloaded
document takes effect on the next session created, and every running session
stays on the preset it was composed from — which is the same rule the
session-header guard enforces from the other side.

`resolve()` read `config.default` directly, which would have made the whole
setting inert; it now goes through `defaultId` like every other caller.

The write-protection test is rewritten against a temp profile root. It was
passing vacuously: the un-overridden Loader REWRITES the composition it read —
stamping `disabled: true` onto the self-disposing row — so the committed
fixture had been mutated by the very run that proved the bug, and every later
run compared against the damaged file and passed. Building the preset in a
temp directory makes the assertion immune to its own failure mode, and it now
fails with a visible `+ disabled: true` when the override is removed.

Review follow-ups on this layer. The exported schema is
`AgentPresetSettingsSchema`, symmetric with the `AgentPresetSettings`
interface it resolves and self-describing at an import site. The `session.create`
JSDoc promised "the deployment's default preset" for an omitted `agentPreset`,
which this layer makes false — it now names the effective default. The
constructor records why it does not use `installSettingsSection`: that helper
re-judges what a consumer DERIVED across attach and detach, and nothing here is
derived. The provider-unload test disposes the fiber `ctx.plugin()` handed back
instead of reaching into `ctx.reflect.store`, and the write-protection wait says
why slack is the right shape for an absence assertion.

The real composition covers the layering too. `apps/cli` boots the shipped
`cordis.yml`, stores `agent-presets.default`, and asserts an unnamed session
composes from it — the package suite proves the layering against a hand-built
context, this proves the roster and the settings provider are wired to each
other. That test also pins the settings row at a temp file: it defaulted to
`$DSH_HOME/settings.yaml`, so a developer's own stored default decided the
outcome of a file whose whole point is that only the shipped root does.

The Agent Note records the per-resolution read and its correspondence with the
session header, and the vacuous-test finding above.
This commit is contained in:
Yichen Jiang
2026-08-04 00:07:11 +08:00
parent 5ed79887fb
commit 8d06b2d576
18 changed files with 378 additions and 30 deletions

View File

@@ -333,9 +333,6 @@ flowchart TD
pkg_credentials --> pkg_invariants
pkg_frontend_static --> pkg_host_webserver
pkg_frontend_static --> pkg_invariants
pkg_agent_presets --> pkg_invariants
pkg_agent_presets --> pkg_paths
pkg_agent_presets --> pkg_scope
pkg_helper --> pkg_brand
pkg_helper --> pkg_invariants
pkg_helper --> pkg_subprocess
@@ -414,11 +411,13 @@ flowchart TD
pkg_credentials_local --> pkg_credentials
pkg_credentials_local --> pkg_invariants
pkg_credentials_local --> pkg_paths
pkg_host_apiproxy --> pkg_agent_presets
pkg_host_apiproxy --> pkg_invariants
pkg_lsp --> pkg_brand
pkg_lsp --> pkg_invariants
pkg_lsp --> pkg_llm
pkg_agent_presets --> pkg_invariants
pkg_agent_presets --> pkg_paths
pkg_agent_presets --> pkg_scope
pkg_agent_presets --> pkg_settings
pkg_sandbox --> pkg_invariants
pkg_sandbox --> pkg_llm
pkg_settings_local --> pkg_atomic_write
@@ -460,11 +459,6 @@ flowchart TD
pkg_app_boot --> pkg_invariants
pkg_app_boot --> pkg_paths
pkg_app_boot --> pkg_system_prompt
pkg_client_test_runtime --> pkg_client_runtime
pkg_client_test_runtime --> pkg_client_ui_slots
pkg_client_test_runtime --> pkg_client_web_react
pkg_client_test_runtime --> pkg_host_apiproxy
pkg_client_test_runtime --> pkg_invariants
pkg_client_ui_layout --> pkg_client_runtime
pkg_client_ui_layout --> pkg_client_ui_slots
pkg_client_ui_layout --> pkg_client_ui_theme
@@ -478,6 +472,8 @@ flowchart TD
pkg_code_runtime_worker --> pkg_invariants
pkg_code_runtime_worker --> pkg_session
pkg_code_runtime_worker --> pkg_timeout
pkg_host_apiproxy --> pkg_agent_presets
pkg_host_apiproxy --> pkg_invariants
pkg_host_directory_picker_browse --> pkg_client_locale
pkg_host_directory_picker_browse --> pkg_client_runtime
pkg_host_directory_picker_browse --> pkg_client_ui_primitives
@@ -575,6 +571,11 @@ flowchart TD
pkg_headless --> pkg_host_webserver
pkg_headless --> pkg_invariants
pkg_headless --> pkg_session
pkg_client_test_runtime --> pkg_client_runtime
pkg_client_test_runtime --> pkg_client_ui_slots
pkg_client_test_runtime --> pkg_client_web_react
pkg_client_test_runtime --> pkg_host_apiproxy
pkg_client_test_runtime --> pkg_invariants
pkg_time_context --> pkg_agent
pkg_time_context --> pkg_invariants
pkg_time_context --> pkg_session
@@ -1140,7 +1141,6 @@ flowchart TD
| [`client-ui-trajectory`](../packages/client/ui-trajectory) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`invariants`](../packages/support/invariants) |
| [`credentials`](../packages/credentials/credentials) | `credentials` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants) |
| [`frontend-static`](../packages/host/frontend-static) | `host` | [`host-webserver`](../packages/host/webserver), [`invariants`](../packages/support/invariants) |
| [`agent-presets`](../packages/preset/agent-presets) | `preset` | [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths), [`scope`](../packages/core/scope) |
| [`helper`](../packages/sdk/helper) | `sdk` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`subprocess`](../packages/subprocess/subprocess) |
| [`telemetry`](../packages/sdk/telemetry) | `sdk` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths) |
| [`settings`](../packages/settings/settings) | `settings` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants) |
@@ -1162,8 +1162,8 @@ flowchart TD
| [`client-ui-theme`](../packages/client/ui-theme) | `client` | [`client-locale`](../packages/client/locale), [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
| [`client-ui-workspace`](../packages/client/ui-workspace) | `client` | [`client-locale`](../packages/client/locale), [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
| [`credentials-local`](../packages/credentials/credentials-local) | `credentials` | [`atomic-write`](../packages/util/atomic-write), [`credentials`](../packages/credentials/credentials), [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths) |
| [`host-apiproxy`](../packages/host/apiproxy) | `host` | [`agent-presets`](../packages/preset/agent-presets), [`invariants`](../packages/support/invariants) |
| [`lsp`](../packages/lsp/lsp) | `lsp` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm) |
| [`agent-presets`](../packages/preset/agent-presets) | `preset` | [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths), [`scope`](../packages/core/scope), [`settings`](../packages/settings/settings) |
| [`sandbox`](../packages/sandbox/sandbox) | `sandbox` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm) |
| [`settings-local`](../packages/settings/settings-local) | `settings` | [`atomic-write`](../packages/util/atomic-write), [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths), [`settings`](../packages/settings/settings) |
| [`agent`](../packages/core/agent) | `core` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) |
@@ -1177,10 +1177,10 @@ flowchart TD
| [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session) |
| [`llm-replay`](../packages/support/llm-replay) | `support` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) |
| [`app-boot`](../packages/ui/app-boot) | `ui` | [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths), [`system-prompt`](../packages/core/system-prompt) |
| [`client-test-runtime`](../packages/client/test-runtime) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-web-react`](../packages/client/web-react), [`host-apiproxy`](../packages/host/apiproxy), [`invariants`](../packages/support/invariants) |
| [`client-ui-layout`](../packages/client/ui-layout) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-ui-theme`](../packages/client/ui-theme), [`invariants`](../packages/support/invariants) |
| [`client-ui-skill`](../packages/client/ui-skill) | `client` | [`client-connection`](../packages/client/connection), [`client-runtime`](../packages/client/runtime), [`client-ui-slash`](../packages/client/ui-slash), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
| [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | `code-runtime` | [`code-runtime`](../packages/code-runtime/code-runtime), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session), [`timeout`](../packages/util/timeout) |
| [`host-apiproxy`](../packages/host/apiproxy) | `host` | [`agent-presets`](../packages/preset/agent-presets), [`invariants`](../packages/support/invariants) |
| [`host-directory-picker-browse`](../packages/host/directory-picker-browse) | `host` | [`client-locale`](../packages/client/locale), [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`client-ui-workspace`](../packages/client/ui-workspace), [`invariants`](../packages/support/invariants) |
| [`host-directory-picker-native`](../packages/host/directory-picker-native) | `host` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-ui-workspace`](../packages/client/ui-workspace), [`invariants`](../packages/support/invariants) |
| [`lsp-local`](../packages/lsp/lsp-local) | `lsp` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`lsp`](../packages/lsp/lsp), [`subprocess`](../packages/subprocess/subprocess), [`timeout`](../packages/util/timeout) |
@@ -1205,6 +1205,7 @@ flowchart TD
| [`user-approval`](../packages/ui/user-approval) | `ui` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) |
| [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm) |
| [`headless`](../packages/bundle/headless) | `bundle` | [`agent`](../packages/core/agent), [`host-apiproxy`](../packages/host/apiproxy), [`host-webserver`](../packages/host/webserver), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session) |
| [`client-test-runtime`](../packages/client/test-runtime) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-web-react`](../packages/client/web-react), [`host-apiproxy`](../packages/host/apiproxy), [`invariants`](../packages/support/invariants) |
| [`time-context`](../packages/context/time-context) | `context` | [`agent`](../packages/core/agent), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session) |
| [`tmux-context`](../packages/context/tmux-context) | `context` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session) |
| [`host-directory-picker-auto`](../packages/host/directory-picker-auto) | `host` | [`host-directory-picker-browse`](../packages/host/directory-picker-browse), [`host-directory-picker-native`](../packages/host/directory-picker-native), [`host-webserver`](../packages/host/webserver), [`invariants`](../packages/support/invariants) |