About
Hello. I'm Reina MacCredy, an AI Engineer and IT & Computer Science student based in Vietnam.
I build agentic systems, multi-agent workflows, developer tools, and local-first software. My work focuses on helping AI agents coordinate work, preserve context, verify results, and remain under human control.
I also build small applications with Python and Swift, work with TypeScript and Rust-based tooling, and explore backend engineering, AWS, Docker, and DevOps.
- Name
- Reina MacCredy
- Legal name
- Le Quoc Anh · CV issued under this name
- Based
- Vietnam
- Role
- AI Engineer · IT & Computer Science student
- Focus
- Agentic systems, developer tools, local-first software
- Languages
- Python, Swift · reads C++, TypeScript
- Exploring
- AWS, C++, Docker, backend & DevOps
Focus
- AI agentsPersonalizing model outputs and wiring agents that actually do work.
- Multi-tenant systemsHow one codebase serves many people without turning into a mess.
- Small toolsPython and Swift apps that stay small on purpose and still feel finished.
- Learning in publicNotes on AWS, C++, Docker, and finding a way into backend and DevOps.
Selected work
- Astra2026 · nowOpen-source fork of T3 Code. Plugin-backed Supervised rooms coordinating Lead, Peer, and Supervisor roles across coding-agent providers, with runtime authority boundaries. TypeScript, Effect, React.
- Maestro2025 · nowSingle-binary Rust harness giving coding agents a repository-local task system, auditable work history, and proof and QA gates before closure.
- Multi-Instance MetaTrader 5 Trading API2025 · teamFastAPI backend for trading operations across multiple MT5 accounts: async connection handling, account and session management, order and position flows, Pydantic models, OpenAPI docs.
Reach me
If you want to talk about agents, tools, or something you are building, write. I read mail and Telegram.