harness-summit MCP Server: Install & Setup

Install harness-summit in Claude Code

Claude Code

claude mcp add harness-summit -- npx -y harness-summit

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "harness-summit": {
      "command": "npx",
      "args": [
        "-y",
        "harness-summit"
      ]
    }
  }
}

Let coding agents on one machine message and wake each other. Run harness-summit install first.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add harness-summit -- npx -y harness-summit

davet47/heddle

Content-addressed contracts and a verification cache that cut agent context by skipping proven code.

RudrenduPaul/HaltProof

Fail-closed deterministic checks and hash-chained receipts for AI agent outputs via MCP.

helloaigent-dev/helloaigent-subscriber

Subscribe your agent to Hello Aigent feeds: discover, fetch signed updates, verify, and act.

kouhxp/gutsy-mcp

Local gut check before risky agent actions: calibrated safe/intended probabilities, no API calls.

lucavisconti211-debug/heu-mcp

HEU Legal e-signature MCP: manage HEU documents and PDFs, prompt signers, download PDFs.

TAM-DS/guardrails-mcp

Local prompt regression tracker with six fictional cases and evidence for human review.