Simon Willison’s Weblog

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Sunday, 5th October 2025

Embracing the parallel coding agent lifestyle

For a while now I’ve been hearing from engineers who run multiple coding agents at once—firing up several Claude Code or Codex CLI instances at the same time, sometimes in the same repo, sometimes against multiple checkouts or git worktrees.

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Saturday, 4th October 2025
Monday, 6th October 2025