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How Aider works under the hood

Codex and Aider look alike from the outside: you type, the model edits your code. Inside they are opposite designs. In Codex the model has tools and e

python dev.to Sep 26, 2026

How Codex and Elpis work under the hood

A coding agent is a loop around a list of messages. This post follows one prompt through the Rust code of Codex CLI, the foundation Elpis is forked fr

rust dev.to Sep 26, 2026

A rollback plan needs a detection plan

Every team running experiments has a rollback plan. Pause the test, ship the fix, move on. Far fewer have a detection plan, which is the part that de

javascript dev.to Sep 26, 2026
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