This week we're joined by Tarun Sachdeva, founder of Traces and previously head of product at Wattpad. Traces gives coding agent sessions a home: a CLI that collects sessions from Claude Code, Codex and other harnesses, and traces.com, where you can share them like pushing code to GitHub and link them to the commits and pull requests they produced. We talk about why agent sessions are decision data worth keeping, privacy and sharing defaults, rethinking code review as its own agent session, Surfaces for visualizing tokens, skills and security risks, and how teams can use trace data to learn without it feeling like surveillance.

• https://traces.com
• https://traces.com/blog
• https://traces.com/blog/surfaces
• https://traces.com/blog/agent-sessions-are-a-dataset
• https://x.com/tarunsachdeva
• https://github.com/tarunsachdeva
• https://market.dev

00:00:00 Introduction
00:01:14 Tarun's Background and Career
00:05:48 Why Traces Was Built
00:09:53 How Traces Works
00:13:57 Privacy and Sharing Defaults
00:17:20 Git Commits and Code Review
00:18:57 Ad
00:20:01 Reviewing PRs with Traces
00:23:57 What Surfaces Are
00:28:09 PR Storytelling and Session Effort
00:37:25 Cost of Agent Sessions
00:40:42 Traces Beyond Coding
00:43:31 Data Culture and Surveillance Concerns
00:52:04 Closing Thoughts and Thanks

Full show notes and transcript: https://devtools.fm/episode/180