None of these change behavior; each said something that was not true. `SessionCwdConflict`'s doc block had been left stranded above the `AgentPresetConflict` inserted under it, so one class carried a comment about the other and the second carried none. The roster comment named a `.system` directory that does not exist; the shipped root is `config/agent-presets/`, and `system` is the trust its entries carry. The real-composition test attributed the disabled `api-gateway` row to "side effects outside this process" alongside the port and the exporter. It is disabled for a different reason — the api-proxy cannot mount in this layer at all — and hiding that behind the same phrase would leave a later layer unable to tell whether the line can come out. One test claimed to refuse an adoption while asserting only that the header records the preset; it now says what it checks. `PERSONA_SECTION`/`PERSONA_ORDER` existed twice, once in the registry that declares the slot and once restated in the row that replaces it — a drift that would land a preset's persona beside the deployment's instead of shadowing it. The registry exports them now. The preset conflict message read "already runs agent preset undefined" for a session that records none, which is the shape a deployment with no roster produces; it names that case instead, with the regression that reaches it through the gateway. Finally, `PresetTree.write()` drops the `loader/config-update` the inherited method emits — recorded on the override, since a future edit-while-running flow needs its own persistence path.
Examples
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Runnable demonstrations of the main DeepSeek Harness interfaces and extension points. Each child directory owns its configuration, prerequisites, commands, and detailed behavior.
mcp-memory
Optional overlays that connect supported third-party memory servers through the generic MCP client. See the memory example reference.
headless-agent
A non-interactive agent that accepts one task, runs it, and emits a selected machine-readable or human-readable output format. See the headless example reference.
jsonrpc-agent
An unattended coding agent driven through the Python SDK and JSON-RPC. See the JSON-RPC example reference.
web-cordis
A self-referential agent that can inspect and change its in-memory Cordis plugin tree. See the web-cordis example reference.
acp-agent
An Agent Client Protocol automation server for programmatic clients, with session, permission, and cancellation support. See the ACP example reference.