Atuin Threads puts all your agent sessions on every machine

Atuin was known for carrying your shell history across machines. Now it is applying the same idea to the sessions of AI coding agents. According to the announcement shared on Hacker News, the Threads feature in version 18.24 makes agent sessions searchable across machines.

The problem it addresses is simple. The author says more than half of the commands running on his machines are no longer written by him; most work happens through a coding agent. But while shell history follows him everywhere, agent sessions are scattered across a laptop, a dev server and temporary cloud instances. They are hard to search and often forgotten once he has moved on.

The article notes that shell history records what happened well but never kept the reasoning behind it. Agent sessions do the opposite: they store commands, output, intent and the paths tried along the way as plain text. Threads plugs that record into Atuin's existing encrypted sync engine. According to the report, syncing is end-to-end encrypted, so Atuin cannot read your sessions; you can run your own server, and capture is opt-in.

In practice this means starting a task in Claude Code on a dev server and finishing it in Codex on a laptop. Atuin's MCP interface also lets agents search previous sessions themselves. In one example from the article, an agent handling daily Sentry triage traced a permissions bug back to an earlier investigation.