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harness-mcp-server

v0.1.3

Published

Recursive Language Model and Continual Harness in one MCP server: long-context Q&A, a Python kernel, and durable memory.

Downloads

531

Vulnerabilities

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Links

Git

Maintainers

brianhungbrianhung

Keywords

mcpmemorylong-contextrlmharness

Readme

harness-mcp-server

The Recursive Language Model and the Continual Harness in one MCP server. It serves every tool from both, so a host gets long-context Q&A, a persistent Python kernel, and durable memory over a single connection.

Part of the harness monorepo. Use this when you want one process; the two capabilities also ship as separate servers, rlm-mcp-server and continual-harness-mcp-server.

Quick start

npm install
npm run build
npm run dev            # stdio server for a local host

Or run it without cloning:

npx -y harness-mcp-server

The installed command is harness, which is also a CLI that routes to each side:

harness rlm query "who led it?" --file report.txt
harness continual add-memory "Prefer focused patches" "Small updates validate faster."

No subcommand starts the combined MCP server, so hosts are unaffected.

Set RLM_MODEL to a provider/model string such as anthropic/claude-sonnet-5 to enable answering, and RLM_SANDBOX=local to enable the Python kernel. Harness state follows the same paths as continual-harness-mcp-server.

Tools

The union of both servers: rlm_store_context, rlm_query, python_exec, rlm_deep_query from the RLM, and harness_get_state, harness_create_memory, harness_create_prompt, harness_create_skill, harness_create_subagent, harness_update, harness_delete, harness_refine from the harness. See each package's README for detail.