Where Claude Code, Codex, Cursor, Amp, opencode, and pi store session logs, which formats they use, how long they keep them, and what remains undocumented.
Hi, I’m Lucian Ghinda. This is where I write about Ruby and Ruby on Rails — idioms, refactoring, new language features, testing, and the tools I use day to day.
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Where Claude Code, Codex, Cursor, Amp, opencode, and pi store session logs, which formats they use, how long they keep them, and what remains undocumented.
One block in CLAUDE.md and AGENTS.md that makes coding agents write throwaway scripts in Ruby instead of Python or bash, so you stay the reviewer instead of a rubber stamp
Real stats from two months of agent-first development: four coding agents (Claude, Codex, Cursor, Amp) competing on every feature across 951 sessions
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