@cubiczan/chp-mcp

Spend approval gate for AI agents — enforce budget limits, per-asset caps and human-in-the-loop thresholds before an agent moves money, with a signed audit hash.

latest

Source

npm

Version: 0.1.2

Version published: 18 hours ago

Maintainers: 1

Created: yesterday

Source

`@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"]
  }
}

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