@cubiczan/chp-mcp

One-command MCP install for CHP Profile B spend / capital gates.

Wraps @cubiczan/chp so Cursor, Claude Code, or any MCP client can call evaluate_spend_gate without vendoring protocol code. Engine digests match the normative golden vectors (Profile B 30/30).

How the pieces fit

MCP client (Cursor / Claude / …)
        │  tools/call
        ▼
┌───────────────────────────┐
│  MCP server (transport)   │  ← you are here (@cubiczan/chp-mcp)
│  evaluate_spend_gate      │
│  approve_spend            │
│  chp_content_hash         │
└─────────────┬─────────────┘
              │ depends on
              ▼
┌───────────────────────────┐
│  Published CHP packages   │
│  npm:  @cubiczan/chp                 (Profile B)
│  PyPI: consensus-hardening-protocol  (Profile A)
└───────────────────────────┘

For AGENTS.md + skills + Profile A decision_gate / decision_adversary, use agent-conductor instead.

Install

npm install -g @cubiczan/chp-mcp
# or one-shot
npx -y @cubiczan/chp-mcp

Cursor / Claude Desktop

{
  "mcpServers": {
    "chp": {
      "command": "npx",
      "args": ["-y", "@cubiczan/chp-mcp"]
    }
  }
}

Claude Code

claude mcp add chp -- npx -y @cubiczan/chp-mcp

Tools

| Tool | Maps to | Purpose | |------|---------|---------| | evaluate_spend_gate | evaluateGate | LOCKED / HITL_REQUIRED / BLOCKED + claims + content hash | | approve_spend | approveHuman | Human lock when HITL_REQUIRED (cannot override hard fails) | | chp_content_hash | contentHash | Float-aware canonical SHA-256 | | chp_version | — | Server + protocol versions |

Example — evaluate a spend

// tools/call evaluate_spend_gate
{
  "action": { "action": "LONG", "asset": "ETH", "notional": 300, "confidence": 0.9 },
  "policy": {
    "max_notional": 500,
    "daily_cap": 2500,
    "hitl_threshold": 250,
    "min_confidence": 0.55,
    "allowed_actions": ["LONG", "SHORT"]
  }
}

Related

| Package / repo | Role | |----------------|------| | @cubiczan/chp | Profile B library (this server’s dependency) | | consensus-hardening-protocol | Profile A + normative spec | | @cubiczan/agent-conductor | Full MCP: contracts, skills, Profile A gates | | @cubiczan/governed-mcp-gateway | HTTP MCP control plane | | @cubiczan/codesentinel-mcp | Codebase health MCP | | cubiczan-resilience / @cubiczan/resilience | Shared retry / timeout / audit primitives |

Licence

MIT.