Originally published on andrew.ooo — visit the original for any updates, code snippets that aged out, or follow-up posts. TL;DR Dexter is an open-source autonomous agent built specifically for deep financial research — think Claude Code, but it lives inside SEC filings, income statements, and live market data instead of your codebase . Released by virattt (the same developer behind the popular ai-hedge-fund project), it landed on GitHub Trending this week with 3,108 new stars in 7 days , pushing the repo to 24,801 total stars . What makes it different from ChatGPT-with-a-finance-prompt: Plans before it acts. Dexter decomposes a question like "How has Apple's free cash flow conversion compared to Microsoft over the last 5 years?" into structured research steps, not a single chat turn. Self-validates. After each tool call it checks its own work, iterates, and won't return until the plan is confidently complete.…