deepseek-harness-action

More about this plugin

The Action provides the experimental dsh-mode: native path over the locked DSH 0.2.1-rc.2 runtime and its official ecosystem composition. Native MCP servers, Profile Bundles, direct Cordis Plugins, repository Skills, Subagents, and Workflows retain DSH-native discovery and behavior. controlled remains the compatible default, so workflows that omit dsh-mode retain their existing composition, permissions, tools, budgets, receipts, and outputs.

Native mode is not an unsafe mode. It returns ownership of DSH's internal headless composition, capability graph, and model-visible inventory to DSH. Native MCP servers load through official @deepseek-ai/dsh-mcp-client; Bundles become official Profile layers; direct Plugins load through Cordis; and repository Skills, Subagents, and Workflows retain DSH-native behavior. Its definition-only extension schema declares owners and process requirements, not Action tools, grants, or per-tool budgets. Dynamic ecosystem tools appear only in runtime observedTools, and native toolPolicy never claims Controller effectiveTools.

The Action still owns trusted-workflow admission, exact package pins, lifecycle-script suppression, runtime inventory audit, Docker and .git-less workspace boundaries, the run-scoped DeepSeek credential proxy, GitHub credential isolation, actor/repository trust, validation and deferred writes, deadlines, cancellation, and…