rennf93

Hi there, I'm Renzo

About Me

I’m Renzo Franceschini — a senior software engineer based in Italy, with nearly a decade of professional experience across Python, TypeScript, Rust, Swift, and Java. I’ve led backend teams and projects at EssilorLuxottica, PwC, Forian / Helix Technologies, and others, usually as Tech Lead or Main Backend Engineer — setting standards, reviewing PRs, planning roadmaps, and shipping maintainable systems.

Currently I’m a Senior Software Engineer — AI Evaluation at BespokeLabs, engineering AI agent evaluation benchmarks and designing multi-layered debugging scenarios that test whether LLM agents can reason through real-world software architecture.

My signature open-source work is the Guard-Core ecosystem — a framework-agnostic API security platform with thin adapters for FastAPI, Flask, Django and Tornado, a TypeScript port with adapters for Express/Fastify/Hono/NestJS, a Rust port on the way, a companion telemetry agent, and a hosted SaaS (marketing site, dashboard, interactive playground, and public API). Sole maintainer across the stack, with 100% test coverage as a floor — not a stretch goal.

Alongside the Guard work I ship tooling for Claude Code — most notably Agent-Runway, a plugin that intercepts subagent spawns and injects architectural context and project rules so they actually respect your conventions.

When I’m not on either of those, you’ll catch me writing GitHub Actions, tinkering with AI agent infrastructure, and contributing to whatever open source I happen to be using at the time.

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The Guard-Core Platform

Projects

Guard Ecosystem — API Security

Python

Guard-Core — API Security Core Engine for Python frameworks.
Guard-Agent — Telemetry & Monitoring Agent for FastAPI Guard.
FastAPI-Guard — Adapter to Guard Core that fully protects a FastAPI app.
Flask-API-Guard — Adapter to Guard Core that fully protects a Flask API app.
Django-API-Guard — Adapter to Guard Core that fully protects a Django app.
Tornado-API-Guard — Adapter to Guard Core that fully protects a Tornado app.

TypeScript

Guard-Core-TS — TypeScript equivalent of Guard Core and its thin adapters.
Guard-Agent-TS — Telemetry & Monitoring Agent for Guard Core TS. (WIP)
Guard-Core-Express — Adapter to Guard Core Ts that fully protects a Express app.
Guard-Core-Fastify — Adapter to Guard Core Ts that fully protects a Fastify app.
Guard-Core-Hono — Adapter to Guard Core Ts that fully protects a Hono app.
Guard-Core-NestJS — Adapter to Guard Core Ts that fully protects a NestJS app.

Rust

Guard-Core-RS — Rust equivalent of Guard Core and its thin adapters.
Guard-Agent-RS — Telemetry & Monitoring Agent for Guard Core RS. (WIP)
Actix-Guard-RS — Adapter to Guard Core RS that fully protects a Actix app. (WIP)
Axum-Guard-RS — Adapter to Guard Core RS that fully protects a Axum app. (WIP)
Rocket-Guard-RS — Adapter to Guard Core RS that fully protects a Rocket app. (WIP)
Tower-Guard-RS — Adapter to Guard Core RS that fully protects a Tower app. (WIP)

Developer Tools & Plugins

Agent-Runway — A plugin for Claude Code’s subagents that makes them respect your rules.
2FastAuth — 2FA Middleware to handle two factor authentication for FastAPI apps.
Cutie-Pi — Pixel-art dashboard for Pi-hole on small LCD screens.

GitHub Actions & Automation

Good Comms — Sends notifications to a Slack channel.
Generate API Key — Generates a secure API key.
GitHub Actions Secrets Management — Tool to manage and automate GitHub Actions Secrets modifications.

Tech Stack

Languages
Frameworks
Databases
OS
Cloud