Coding agents are moving from autocomplete to doing whole tasks: reading a codebase, making a plan and changing many files. This case is a concrete example of where that works in practice. It is one of 106 sightings filed under Software Development on Agent Sightings (number 5 by interest), and one of 32 involving Codex.
How you could try it
Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into Codex or any similar agent and adjust the details to your situation.
Using the approved plan in PLAN.md, implement stage 1 on a new branch, run tests, and open a draft PR. Do not start stage 2 until review comments are addressed.
Tip: Work on a fresh branch, ask for a plan before edits, and review the diff and test results before merging.
Source
Read the original first-hand account on Blog: https://calv.info/agents-feb-2026. Our summary is a paraphrase; details are in the source.
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