[!NOTE] 📦 This plugin lives in the dsh-plugins monorepo — file issues & pull requests there. npm: @hy-sde-org/dsh-pi-durable · @hy-sde-org/dsh-tool-pi-durable

dsh-pi-durable

Durable-agent capability for the DeepSeek Harness, delivered as two standalone @hy-sde-org packages (no harness source changes):

Package	Plane	Role
@hy-sde-org/dsh-pi-durable	HOST	Engine: publishes the piDurableAgent service — a pi-durable Harness over ~/.dsh/storages/pi-agent.sqlite with an OpenAI-compatible relay provider (@earendil-works/pi-durable + @earendil-works/pi-ai).
@hy-sde-org/dsh-tool-pi-durable	preset	Model-facing tools (durable_agent_submit, durable_agent_write, durable_agent_status, durable_agent_history, durable_agent_fork, durable_agent_abort) + the durable-agent prompt section; resolves the engine service by name.

What the durable agent is

A separate conversation the model can drive: its own transcript, its own coding toolset (bash/read/write/edit via CodingTools + NodeExecutionEnv), its own durable SQLite storage, and its own model route (the configured relay). Submissions are exactly-once per requestId, every commit is checkpointed, the process can crash and resume, and conversations fork at any entry (transcript inherited up to the fork point).

Layering (complementary, zero code overlap):

• Maka / dsh-graph — the harness orchestration plane: who promised what, who needs waking (work schedule, exactly-once claims, wakes).
• pi-durable (this plugin) — how far one conversation got: per-step checkpoints, fork-at-entry, durable documents/tasks.
• celld (optional substrate, not used here) — did the write reach durable proof (RPO=0) across processes.

Write-only mode

With baseUrl unset the engine still runs: passive writes, documents, and tasks work; durable_agent_submit fails loud with [pi-durable-not-configured]. Point baseUrl at any OpenAI-compatible endpoint and set apiKeyEnv to enable generation.

Mounting

Self-contained rows ship in each package's cordis.patch.yml (dsh.bundle.patch); plugin_manager install_bundle mounts them. To wire by hand instead: add the engine row to the host composition (it injects nothing and publishes a service) and the tool row to the preset's plugins list — see the comments in each row file. The packages must resolve in the host process: publish to npm, or add a relative file: dependency to the fork's apps/cli/package.json:

"@hy-sde-org/dsh-pi-durable": "file:../../../dsh-plugins/dsh-pi-durable/packages/pi-durable",
"@hy-sde-org/dsh-tool-pi-durable": "file:../../../dsh-plugins/dsh-pi-durable/packages/tool-pi-durable"

Development

pnpm install
pnpm --filter @hy-sde-org/dsh-pi-durable check && pnpm --filter @hy-sde-org/dsh-pi-durable test
pnpm build   # container-wide build/check/test via package scripts

Engine tests exercise the durable flow over real SQLite (write → close → reopen → verify, requestId dedup, fork, status) with no model configured.

License

MIT — see LICENSE and THIRD-PARTY-NOTICES.md.