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https://github.com/deepseek-ai/deepseek-harness
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`agentPreset.select` recomposes one session's agent from a different preset. It is allowed only while the session is blank — once a turn has run, that history was produced under the preset's tools and swapping them would strand logged tool calls, so the attempt answers `agent-preset-locked`. The agent and the session survive; only the preset subtree is swapped. That was forced by what the host actually owns: api-proxy discards the `AgentHandle` it creates, and there is no delete RPC, so neither disposing nor recreating the session was available. Swapping the subtree is also the better answer — the session id, its workspace attachment, and its projections all stay put. `recompose` is unmount-then-mount because two compositions cannot coexist: both would register the same tool names into one layer. So it resolves the new preset BEFORE tearing anything down (an unknown id is a no-op) and restores the previous composition when the new one fails to mount, rather than leaving the agent with no tools at all. Both paths are pinned by test. Also restores the English half of the `agentPreset.list` README paragraph, which was lost before the previous commit — and `verify-translation-pairing --write` recorded the pair as consistent anyway, because it records whatever state it finds rather than checking the two sides say the same thing.
host/ — web-GUI host half
English | 中文
The host side of the dsh web GUI: the API gateway every client shape shares, and the plain HTTP server it rides on. The browser side lives in client/; the composed application is apps/cli booting the dsh-base bundle serving apps/web. All product packages.
| Package | Role | ctx key |
|---|---|---|
apiproxy/ |
Shared host API gateway and wire contract | ctx.apiProxy |
webserver/ |
HTTP route carrier | ctx.httpServer |
frontend-static/ |
SPA dist server on the webserver fallback seat | consumes ctx.httpServer |
directory-picker/ |
Workspace-directory picking seam | ctx.directoryPicker |
directory-picker-native/ |
Native directory-picker backend and browser interaction | registers ctx.directoryPicker |
directory-picker-browse/ |
In-app directory-browser backend and interaction | registers ctx.directoryPicker |
directory-picker-auto/ |
Host-adaptive picker composition | mounts a backend |
apiproxy remains transport-independent; client/connection supplies the browser/HTTP carrier. Picker implementations replace one another behind the shared seam.