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MCP Memory Gateway

igorganapolsky/mcp-memory-gateway

Deterministic pre-action governance for AI agents that blocks repeated mistakes before they execute. Hooks into PreToolUse to intercept risky commands like force pushes or destructive file operations, matching them against prevention rules built from your own thumbs-down feedback. Works with Claude Code, Cursor, Codex, Gemini CLI, Amp, Cline, and OpenCode. The core mechanic is simple: agent tries a bad action, you reject it once, ThumbGate blocks it permanently in future sessions before any tokens are spent. Also generates a versioned BRAIN.md artifact that consolidates lessons, guardrails, and gates into agent-readable context. Useful when you're paying per-token for frontier models and tired of debugging the same hallucinated function calls or policy violations across sessions.

GitHub stars
23
transport
STDIO
last updated
Mar 21, 2026
View on GitHub

Sponsors

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Readme

ThumbGate 👍 👎

ThumbGate Infrastructure Firewall with Thumbs Up and Thumbs Down

ThumbGate is the self-improving pre-action firewall for AI coding agents
AI coding agents repeat mistakes — and one wrong tool call can wipe a directory, leak a key, or push broken code.

View the full README on GitHub

Details

Repository
github.com/igorganapolsky/mcp-memory-gateway
Website
rlhf-feedback-loop-production.up.railway.app
Category
AI & LLM Tools
Package
mcp-memory-gateway
Transport
STDIO
Registry
MCP registry, active

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