Expose DeepSeek Harness agent capabilities as an MCP server (brain=Hermes, arms=Harness)
Expose DeepSeek Harness agent capabilities as an MCP server, letting any MCP client (e.g. Hermes) drive Harness to execute real coding tasks.
Hermes is the brain (pro), Harness is the arms (flash) — 1+12.
Harness ships a powerful agent runtime (tools, LLM, agents, sessions), but it is a Cordis app, not something another agent can call. This plugin turns Harness inside-out: it starts a real MCP server (StreamableHTTP) inside Harness and bridges Harness's core services — ctx.agents, ctx.agentPresets, ctx.tools — so an external "brain" can delegate real work to Harness's "arms".
Tool Direction Purpose -------------------------- echo — Verify MCP connectivity harnesslisttools — List Harness's registered tool names agentrun Hermes → Harness Run a task synchronously and return a structured result taskinbox Hermes → Harness Push a structured task (task + memory context + cwd) to an async queue taskresult Hermes ← Harness Poll a queued task's structured result
This closes the loop between the client's persistent memory and Harness's coding: memory is fed into each task as context, and the result (changes / verification / leftovers) can be persisted back to the client's memory for the next run.
Then reference the plugin from your Harness workspace (see the cordis patch below).
Clone this repo inside your Harness workspace under packages/mcp/harness-mcp-server/ (the pnpm workspace matches packages//, two levels deep):
From the project README.
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