dsh-multica-runtime

Multica DSH Runtime

Private, out-of-tree runtime bridge between Multica and the public DeepSeek Harness. It exposes a versioned JSONL protocol over stdio and composes over @deepseek-ai/dsh-base. It does not require changes to DeepSeek Harness.

Privacy This repository contains only the Multica integration layer. It does not vendor or redistribute DeepSeek Harness source code. Never commit API keys, MCP secrets, session logs, or generated profiles. DSH telemetry is disabled by the bundle patch. stdout is protocol-only; diagnostics go to stderr. Local development

The DSH packages used by this plugin are public npm packages. This checkout is currently validated against @deepseek-ai/dsh@0.2.1-rc.2 and its matching @deepseek-ai/dsh-* package family. engines.dsh declares the supported range (>=0.2.1-rc.2 <0.3.0); DSH refuses to load the bundle outside it. DSH 0.1.x needs the previous 0.1.0-private.1 build.

Install the local bundle into a DSH profile after building it:

The plugin supports:

Multica discovers the profile only after --probe returns protocol version 1. For a non-standard DSH installation, point the daemon at its launcher:

The runtime contract includes: model and thinking-level discovery from DSH itself; committed text, reasoning, tool, result, and token-usage events; cooperative cancellation and durable session resume; canonical Multica MCP configuration translated to DSH stdio or streamable-HTTP clients; per-runtime/agent session roots supplied by the Multica daemon; headless one-shot approvals, with no interactive question surface. narrowly forwards only Multica's server-minted mat_ task token into DSH's otherwise credential-scrubbed shell, so in-task multica commands retain task attribution without exposing model-provider credentials.

The local .local/ tree is ignored. It may hold an isolated DSH home and a development launcher, but neither belongs in source control.

DEEPSEEK_API_KEY is read by DSH's credential provider at process runtime. It must not be stored in this repository.