Alejandro Betancourt

Web3 × AI Engineer · Smart Contracts (Solidity, Cairo) · MCP + Agentic
Workflows · Shipping on Ethereum, Base & Starknet · Learning Rust

[Alejandro Betancourt @Ale_Beta]

Pasé las últimas semanas certificándome en el stack completo de
Anthropic: Claude, Claude Code, Agent Skills y Subagents.
Porque la próxima ola del dev workflow no es 1 dev + 1 IA.
Es 1 dev + N agentes coordinados.
Y en Web3, esto cambia todo. Esta semana publico cómo lo aplico

[Alejandro Betancourt @Ale_Beta]

The most expensive ERC20 bug isn't reentrancy.

It's the silent transfer() that returns false and nobody checks

Foundry 1.7's linter caught it in my test today.
One assertTrue() saved a future audit finding.

Repo (production-ready ERC20):
#Web3 #Solidity
https://t.co/tds5n8KCy2

[Alejandro Betancourt @Ale_Beta]

The biggest Starknet hack ($9.5M zkLend) wasn't a Cairo language bug.

It was rounding + accumulator manipulation — impossible to catch with static tools.

My multi-agent swarm found 31 similar patterns in 5 min.

PAT-001 docs coming this summer 🛠️

https://t.co/odE06776wM

[Alejandro Betancourt @Ale_Beta]

@base The "agents will use crypto" thesis is right, but the gating factor isn't the crypto — it's predictable settlement and identity for AI actors. Account abstraction + gasless flows are the actual primitive that unlocks agent-to-agent payments at scale.

[Alejandro Betancourt @Ale_Beta]

@EliBenSasson This is exactly why the "DAO without gas" pattern matters. Replacing centralized governance with one that still requires capital to participate is not replacement — it's gatekeeping in new clothes. Engineering should remove friction, not preserve it.

[Alejandro Betancourt @Ale_Beta]

@smpalladino Same workflow shift here. I run a multi-agent swarm (Claude Code + RuFlo) for Cairo audits — Codex now handles the "side errands" while the main agent works. The bottleneck moved from compute to orchestration design.

[Alejandro Betancourt @Ale_Beta]

@rauchg The "any GitHub repo as a registry" pattern is huge. npm-level distribution without the dependency hell. Curious if this extends naturally to language tools Solidity components, Cairo modules, even Anthropic Agent Skills. Would unlock real composability across Web3 dev tooling

[Alejandro Betancourt @Ale_Beta]

@gakonst The parallel with security testing is sharp — same primitive, different objective ("find the bug" vs "find the alpha").

Building this for Cairo audits (multi-agent swarm). For MEV the spec IS the money, while audits keep it implicit.

[Alejandro Betancourt @Ale_Beta]

- Cron daemon executes approved proposals after 1h safety delay
Stack:
- Solidity + OpenZeppelin (ERC2771Context, ECDSA)
- Foundry (>90% test coverage)
- Next.js 15 + ethers v6
- E2E orchestrator in Node.js

Demo + repo:
https://t.co/9AX8vk3Dj7

7/19 modules done 🎓

[Alejandro Betancourt @Ale_Beta]

🗳️ Just shipped: DaoVotacionGasless

A DAO where voting doesn't cost gas — solving the UX problem that kills decentralized governance.

Module 7/19 of my Master's at CodeCrypto 🎓

How it works 🧵👇

[Alejandro Betancourt @Ale_Beta]

Governance design:
- 1 person = 1 vote (deposit amount doesn't matter)
- Proposals require ≥10% of real treasury (anti-spam)
- "Real Treasury" model: governance weight doesn't decay on execute, but quorum is calculated on actual balance

[Alejandro Betancourt @Ale_Beta]

First multi-agent swarm on a real project 🐝
Mission: map Cairo smart contract vulns on Starknet.
5 min → 31 patterns, prioritized.

Surprise: the $9.5M zkLend hack wasn't a Cairo quirk — it was rounding + accumulator manipulation.

PAT-001 docs first 🛠️

https://t.co/odE0677Emk

[Alejandro Betancourt @Ale_Beta]

🔗 Resources:

- Repo: https://t.co/pjUCaNTjlC
- Creator: @rUv

Have you tried multi-agent setups? Which framework?

#Web3 #AI #ClaudeCode #MCP #AgenticAI #SmartContracts

[Alejandro Betancourt @Ale_Beta]

Imagine an AI Queen orchestrating a swarm of architects, devs and auditors — all coordinated, all working in parallel, all living inside your terminal. 🐝🤯

Meet RuFlo V3, the open-source multi-agent framework transforming my workflow in Claude Code. 🧵

[Alejandro Betancourt @Ale_Beta]

...and I grab a coffee while the swarm runs the terminal. ☕💻

We're entering a stage where dev work isn't 1 dev + 1 AI — it's 1 dev + N coordinated agents.

The devs who learn to orchestrate this today will have a brutal edge tomorrow.

Already using MCP servers daily? 👇

[Alejandro Betancourt @Ale_Beta]

@gakonst This is the multi-agent infra direction that makes sense to me — the Kubernetes layer addresses real production concerns that CLI-based swarms hand-wave away. Any plans for MCP server support so teams can plug in their own harnesses (e.g., Foundry test runners)?

[Alejandro Betancourt @Ale_Beta]

@ericng39 Tried Claude Code + MCP + subagents a couple months ago and never went back — the orchestration is the real unlock. Running parallel agents on Solidity & Cairo projects (audit / tests / review). Any plans to explore multi-agent setups for OSS Cairo at OZ?