ReAct and Tool Usage (The Agents Season, Episode 2)
From Linear Digressions by Katie Malone
April 27, 2026 · 24 min
About this episode
This episode discusses the breakthrough in AI capabilities that allows models to reason and take action in real-time, highlighting key papers and projects.
Before 2022, there was a wall between AI and the real world — models could reason impressively, but couldn't look anything up, run code, or check whether anything they said was actually true. This episode traces the moment that wall came down, through two landmark papers: ReAct, which showed what happens when you interleave reasoning and action in a loop, and Toolformer, which taught models to decide *for themselves* when to reach for a tool. Plus: what MCP actually is, and why a hobbyist project called Open Claw became the fastest-growing open source project in history. --- Website: https://lineardigressions.com Apple Podcasts: https://podcasts.apple.com/us/podcast/linear-digressions/id941219323 Spotify: https://open.spotify.com/show/1JdkD0ZoZ52KjwdR0b1WoT Substack: https://substack.com/@lineardigressions
People in this episode
Host: Katie Malone
Topics covered
- AI
- machine learning
- reasoning
- action
- open source
- technology
Keywords
- AI
- ReAct
- Toolformer
- Open Claw
- machine learning
- reasoning
- action
- open source
Mentioned in this episode
Organizations: ReAct, Toolformer, Open Claw
More episodes of Linear Digressions
- Many Agents, Many Problems (The Agents Season, Episode 8) · June 8, 2026 · 28 min
- How Do You Evaluate An AI Agent? (The Agents Season, Episode 7) · June 1, 2026 · 32 min
- AI Agent Failure Modes (The Agents Season, Episode 6) · May 25, 2026 · 33 min
- Agentic Planning (The Agents Season, Episode 5) · May 18, 2026 · 24 min
- Memory Management for AI Agents (The Agents Season, Episode 4) · May 10, 2026 · 25 min
- Lost in the Middle (The Agents Season, Episode 3) · May 4, 2026 · 20 min
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