Agent Gate vs Impact Preview

In-depth architectural comparison of the Agent Gate and Impact Preview MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Agent Gate when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• You have access to required keys: AGENT_GATE_LEDGER.
• Primary tools included: Fail-closed checklist evaluation, Default five-check ship gate, Independent refute-first review requirement.

Explore Agent Gate Details

Choose Impact Preview when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: SECRET_KEY, DATABASE_URL, REDIS_URL.
• Primary tools included: File write and delete previews, Shell command risk checks, Path risk assessment.

Feature & Specification Comparison

Specification	Agent Gate Jott2121 Developer Tools	Impact Preview Developer Tools
Summary	Lets an AI agent gate its own work before claiming "done": a fail-closed ship checklist (verifygate counts a check satisfied only if explicitly proven), required independent refute-first review, and an append-only sha256-chained receipts ledger that makes any edit to past receipts detectable. pip install mcp-agent-gate.	Impact preview for AI agents - see what changes before any action executes.
Category & Scope	Developer Tools

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "jott2121-agent-gate": {
      "command": "uvx",
      "args": [
        "mcp-agent-gate"
      ],
      "env": {
        "AGENT_GATE_LEDGER": "YOUR_AGENT_GATE_LEDGER_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "impact-preview": {
      "command": "uvx",
      "args": [
        "impact-preview"
      ],
      "env": {
        "SECRET_KEY": "YOUR_SECRET_KEY_HERE",
        "DATABASE_URL": "YOUR_DATABASE_URL_HERE",
        "REDIS_URL": "YOUR_REDIS_URL_HERE"
      }
    }
  }
}

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