https://simonwillison.net/tags/codex-cli/
24 posts tagged ‘codex-cli’. OpenAI's Codex CLI tool, not the same thing as Codex cloud.
simon willisoncodex cli
https://simonwillison.net/2025/Dec/12/openai-skills/
One of the things that most excited me about Anthropic’s new Skills mechanism back in October is how easy it looked for other platforms to implement. A skill...
openaiquietlyadoptingskillsavailable
https://simonwillison.net/2025/Nov/9/gpt-5-codex-mini/
OpenAI partially released a new model yesterday called GPT-5-Codex-Mini, which they describe as "a more compact and cost-efficient version of...
reverse engineeringcodex cligetgptmini
https://dev.to/therealmrmumba/top-10-codex-cli-tips-every-developer-should-know-2340
Sep 27, 2025 - Codex CLI has quickly become a go-to tool for developers looking to streamline workflows, automate... Tagged with webdev, programming, ai, productivity.
codex clitoptipseverydeveloper
https://developers.openai.com/codex/cli/
Pair with Codex in your terminal
codex cli
https://www.techzine.eu/news/security/136946/openai-codex-cli-contained-dangerous-mcp-security-gap/
Dec 3, 2025 - Check Point discovered critical vulnerability in OpenAI Codex CLI. Attackers could execute code undetected. Patch now available.
openai codextechzine globalclicontaineddangerous
https://simonwillison.net/2025/Dec/15/porting-justhtml/
I wrote about JustHTML yesterday—Emil Stenström’s project to build a new standards compliant HTML5 parser in pure Python code using coding agents running...
codex cliportedpythonjavascript