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rennf93/README.md

Hi there, I'm Renzo

LinkedIn GitHub Email


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.

Right now my main focus is RoboCo — an AI Agents Company: a virtual organization of 25 AI agents and one human CEO (me), wired to run as a complete software-development workforce. A Board, a Main PM, and Backend / Frontend / UX-UI cells push every task through a real build → review → document → merge pipeline — where only the human ever merges to master. It's built on FastAPI, Postgres, Redis and MCP, with a RAG knowledge base feeding the agents and a live control panel over the whole org.

Freshest off the bench is fable-mode — a Claude Code plugin that runs Opus 4.8 under Claude Fable 5's own behavioral doctrine, transcribed by Fable itself. Harness-level hooks catch drift as it happens (promise-endings blocked, failures reported verbatim), and a 12-probe eval loop scores it pairwise against golden Fable transcripts — currently leading or tying vanilla Opus on 6 of 8 doctrine dimensions, with the losses committed to the repo right alongside the wins.

When I'm not on any 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.

snake


The Guard-Core Platform

guard-core.com app.guard-core.com playground.guard-core.com api.guard-core.com


Projects

RoboCo — AI Agents Company

  • RoboCo — An AI Agents Organization of 25 AI agents + 1 human CEO, running a full build → review → document → merge pipeline. Role-gated, open source, self hosted company that aims to help solo-founders (like me) have the team they can't yet quite afford to have. You can focus on reaching out to new customers while they keep building for you.

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

  • fable-mode — Claude Code plugin that makes Opus 4.8 behave like Claude Fable 5: doctrine output style, drift-catching hooks, and an eval loop measured against golden Fable transcripts.
  • Agent Runway — Claude Code plugin that briefs subagents on project architecture and conventions before they write code, then validates placement after.
  • 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


Tech Stack

Languages Languages
Frameworks Frameworks & Tools
Databases Databases SQLAlchemy SQL Server Databricks
OS Operating Systems
Cloud Cloud

Statistics


Matrix

Pinned Loading

  1. guard-core guard-core Public

    Guard Core - API Security Core Engine for FastAPI-Guard adapter, FlaskAPI Guard adapter and DjAPI Guard adapter

    Python 6 2

  2. roboco roboco Public

    Not a loop. Not a harness. Not a worflow. Not a framework. An AI Agents Organization. RoboCo: 25-agent software company with role-gated lifecycle. Self-hosted. AGPL.

    Python 66 12

  3. fastapi-guard fastapi-guard Public

    FastAPI Guard: A security library for FastAPI that provides middleware to control IPs, log requests, and detect penetration attempts. It integrates seamlessly with FastAPI to offer robust protectio…

    Python 805 42

  4. opus-fable-playbook opus-fable-playbook Public

    Make Claude Opus 4.8 behave like Claude Fable 5 — doctrine output style, drift-catching hooks, and an eval loop against golden Fable transcripts. Claude Code plugin.

    Shell 15 8

  5. two-fast-auth two-fast-auth Public

    FastAPI middleware that provides seamless two-factor authentication implementation. It integrates with FastAPI to offer robust 2FA protection for your application routes.

    Python 37 2

  6. cutie-pi cutie-pi Public

    A pixel-art dashboard for Pi-hole on small LCD screens.

    Python 49 2