Tiro
Tiro is a local-first, open-source reading OS that saves web pages and email newsletters as clean markdown on your machine and uses Claude Opus 4.6 as a personal research librarian.
Core trick
Saves web pages and newsletters as markdown and feeds them to Opus for digests that rank articles and flag contradictions across sources.
Description
Tiro is a local-first, open-source reading OS that saves web pages and email newsletters as clean markdown on your machine and uses Claude Opus 4.6 as a personal research librarian. Opus powers three intelligence features: daily digests that rank articles and surface contradictions across sources, on-demand ingenuity analysis scoring bias, factual confidence, and novelty, and learned preference classification that adapts to your reading taste. Haiku handles lightweight enrichment (tags, entities, summaries) on every save. Everything runs locally - SQLite, ChromaDB, and markdown files you own completely. It has advanced features like dark mode, knowledge graph visualization, TTS audio, Gmail IMAP integration for auto-ingesting newsletters, a Chrome extension for one-click saves, and an MCP server that lets Claude query your library directly. Named after Cicero's freedman who preserved his master's works for posterity - Tiro does the same for your digital knowledge.
README excerpt
<p align="center"> <img src="tiro/frontend/static/logo-128.png" alt="Tiro" width="80" height="80"> </p> <h1 align="center">Tiro</h1> <p align="center"><strong>A local-first reading OS for the AI age.</strong></p> <p align="center"><em>"...without you the oracle was dumb."</em><br><small>— Cicero to Tiro, 53 BC</small></p> --- > **📌 Frozen hackathon submission.** This repository is preserved as the original hackathon build ([Built with Opus 4.6: a Claude Code Hackathon](https://cerebralvalley.ai/e/claude-code-hackathon), Feb 10–16 2026) in its post-hackathon, MIT-licensed form, and is no longer developed. **Tiro's active development continues at [esagduyu/tiro](https://github.com/esagduyu/tiro)**, which carries the full history forward from the 0.2.0 security & integrity release onward. --- Tiro saves web pages and email newsletters as clean markdown on your machine, enriches them with AI-extracted tags, entities, and summaries, and uses Claude Opus 4.6 for deep cross-document reasoning — daily digests that find contradictions between sources, trust analysis on demand, and learned reading preferences that adapt to you. Named after [Cicero's freedman](https://en.wikipedia.org/wiki/Marcus_Tullius_Tiro) who preserved and organized his master's works for posterity, Tiro does the same for your digital knowledge. *Built solo for the [Built with Opus 4.6: a Claude Code Hackathon](https://cerebralvalley.ai/e/claude-code-hackathon) (Feb 10–16, 2026) — a week-long virtual hac