ai-sdk-provider-dsh

AI SDK provider that drives a DeepSeek Harness (dsh) runtime as a language model.

dsh is a full agent harness (agent loop, tools, skills, MCP, sessions) from DeepSeek AI. This provider wraps a dsh runtime subprocess behind the AI SDK LanguageModel interface, so you can drive a harness agent from AI SDK generateText / streamText the same way ai-sdk-provider-claude-code drives Claude Code — while keeping the AI SDK as the single orchestration surface.

Version Compatibility

This provider implements the LanguageModelV3 specification (specificationVersion: 'v3'), the interface shared across AI SDK majors. A single build serves both:

AI SDK	@ai-sdk/provider	Status
ai@^6	@ai-sdk/provider@^3	✅ supported
ai@^7	@ai-sdk/provider@^4	✅ supported (V3 models are first-class in v7)

Requirement	Value
Node.js	>=22.19
Module format	ESM only
DeepSeek Harness family	pinned exact 0.1.0-rc.6

Upstream status: dsh is in developer preview (0.1.0-rc.x); DeepSeek documents breaking changes as their release policy. This provider pins the harness SDK family to exact versions, so the runtime version is a deliberate platform-side decision — upgrade the pin explicitly, never by range drift.

Install

npm install ai-sdk-provider-dsh

The dsh runtime is bundled: the package ships a default runtime composition (runtime/cordis.yml) plus the dsh-jsonrpc-agent bin (via @deepseek-ai/dsh-sdk-jsonrpc-demo), and all runtime plugins are pinned exact versions in dependencies. A provider instance spawns a working runtime out of the box — no separate install.