He Built a Claude Code Agent That Reads Him a Daily 20-Min Investment Briefing

krkn1010 · reddit · 2026-08-22

An investing enthusiast shared a personalized business-news agent built with Claude Code, running reliably for two months:

Output: a 15–20 min MP3 morning briefing every business day, auto-uploaded to Google Drive, covering global macro, portfolio/watchlist news, explanations of big stock moves, tech/AI/biopharma updates, a "Horizon Expander" section for under-covered areas, Ukraine war updates, and Seattle local news.
Stack: Claude Code driven by Opus, reading holdings from Google Sheets, live quotes via yfinance, MP3 generation with Kokoro TTS; it reviews previous reports to avoid repetition and often follows up on how stories developed.
Feedback loop: per-report feedback is factored into future generations; quality notably improved from Opus 4.8 to Opus 5, with more nuance and fewer errors.
The author is willing to open-source it and discusses ideas for a cloud-based version.

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