Reported by sourceNew
Let a coding agent run overnight ML training experiments
Point a coding agent at autoresearch so it edits a small GPT training script, runs short timed experiments and keeps what improves.
Open-source agent · OpenAI
Codex CLI
OpenAI's command-line coding agent that reads, edits and runs code in a local repository.
Research and Analysis
Reported by sourceNew
Answer technical questions by letting async agents run experiments
Simon Willison sends research questions to cloud coding agents such as Claude Code for web and Codex Cloud, which write and run experiments in a dedicated repo and open a PR.
Coding and Code Review
Reported by sourceNew
Port a Python library to JavaScript with a coding agent
Simon Willison had Codex CLI translate the JustHTML parser into a dependency-free JavaScript library, steering it with about eight prompts over one afternoon.
Finance and Admin
Reported by sourceNew
Prepare a tax return with an agent and compare it to an accountant
Kyle Corbitt worked through his 2025 US taxes with Codex, which researched rules, gathered documents and wrote a custom tax engine while a paid accountant did the same return.