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@quitegoodproject/sonder-mcp

v1.1.0

Published

Model Context Protocol (MCP) Server for the Sonder Protocol (RFC-0114). Provides autonomous attention gating, cognitive headroom scoring, and cryptographic egress attestation for Claude Desktop, Cursor, and Windsurf.

Vulnerabilities

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  • 0Medium
  • 0Low

Links

Git

Maintainers

barnsby.tarquinbarnsby.tarquin

Keywords

mcpmodel-context-protocolsonder-protocolattention-gatekeepingai-safetyegress-firewalll402claude-mcpcursor-mcpquitegoodproject

Readme

@quitegoodproject/sonder-mcp

Model Context Protocol (MCP) Server for the Sonder Protocol (RFC-0114).
Autonomous attention gatekeeping, cognitive headroom scoring, and cryptographic egress attestation for Claude Desktop, Cursor, Windsurf, and autonomous agent frameworks.

Standard: RFC-0114 License: MIT

What is Sonder Protocol?

Under RFC-0114, autonomous AI agents are cryptographically bounded from emitting unverified, speculative, high-frequency outbound communications. The Sonder Protocol runtime computes recipient cognitive headroom ((\mathbf{H}_c \in [0, 100])), tracks cross-network fatigue cooldowns, and issues non-forgeable cryptographic egress proofs (X-Sonder-Proof).

This MCP server equips local LLMs (Claude Desktop, Cursor, Windsurf) with native tools to evaluate egress clearance before executing email or webhook tools.

Installation & Setup

1. Claude Desktop

Add to your claude_desktop_config.json:

🎁 Free Sandbox Bonus: Pass --email [email protected] in args to instantly double your free sandbox quota from 50 to 100 requests! Zero credit card required.

{
  "mcpServers": {
    "sonder": {
      "command": "npx",
      "args": ["-y", "@quitegoodproject/sonder-mcp", "--email", "[email protected]"],
      "env": {
        "SONDER_API_URL": "https://sonderprotocol.com",
        "SONDER_SPOKE_ID": "claude_assistant"
      }
    }
  }
}

2. Cursor / Windsurf / CLI

Add as a new MCP server in Cursor Settings -> Features -> MCP or run via terminal:

npx -y @quitegoodproject/sonder-mcp --email [email protected]

Exposed MCP Tools

  1. check_preflight_gate: Evaluates recipient fatigue, cognitive headroom (0-100), and saturation limits. Returns an approved status with cryptographic attestation or a block directive with recommended cooldown window.
  2. evaluate_statutory_catalyst: Queries the Sonder Regulatory Pressure Oracle for active statutory deadlines (e.g. UK Finance Act 2023, HMRC capital allowances).
  3. erify_attestation_proof: Validates an X-Sonder-Proof signature against the verification portal.

Specification & Links