openai/codex on Hacker News

Wow, this part where they describe skills sounds quite odd https://github.com/openai/codex/blob/99f47d6e9a3546c14c43af9... Why wouldnt they just expose the files directly? Having the model ask for them as regular files sounds a bit odd

comment by gzalo · 2026-01-24 · in Unrolling the Codex agent loop

Hmm, this seems promising? https://github.com/openai/codex/pull/9796

comment by copperx · 2026-01-24 · in Unrolling the Codex agent loop

…their CLI a while ago and have been following their releases and PRs to broaden my knowledge. [0] https://github.com/openai/codex/tree/main/codex-rs

comment by vinhnx · 2026-01-24 · in Unrolling the Codex agent loop

…1 are ignored and removed, since the model does not reuse reasoning items from previous turns. [0] https://github.com/openai/codex/pull/5857 [1] https://github.com/openai/codex/pull/5986 [2] https://cookbook.openai.com/examples/responses_ap…

comment by jumploops · 2026-01-24 · in Unrolling the Codex agent loop

…communication is exceptional, too. Eric Traut (of Pyright fame) is all over the issues and PRs. https://github.com/openai/codex

comment by postalcoder · 2026-01-23 · in Unrolling the Codex agent loop

…a couple of issues [0][1] opened about on GitHub, but it doesn't seem a priority for the team. [0] https://github.com/openai/codex/issues/2788 [1] https://github.com/openai/codex/issues/3585

comment by coffeeaddict1 · 2026-01-23 · in Unrolling the Codex agent loop

…scrapes terminal output for an approval request. Codex has had a feature request open for a while: https://github.com/openai/codex/issues/3052

comment by jackcarter · 2026-01-20 · in Running Claude Code dangerously (safely)

…brought to you by Big Token.) So be thoughtful about what you load in what context. See e.g. https://github.com/openai/codex/blob/a6974087e5c04fc711af68f...

comment by btown · 2025-12-20 · in Skills Officially Comes to Codex

…disk. https://platform.claude.com/docs/en/agents-and-tools/agent-s... And as implemented in Codex: https://github.com/openai/codex/pull/7412/changes#diff-35647...

comment by btown · 2025-12-13 · in OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

…once the skill is selected the whole file would be read, but it looks like that's not the case: https://github.com/openai/codex/blob/ad7b9d63c326d5c92049abd... 1) After deciding to use a skill, open its `SKILL.md`. Read only enough to…

comment by simonw · 2025-12-13 · in OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

…it's not injected into the context until the skill is used or it's never injected into the context? https://github.com/openai/codex/blob/main/docs/skills.md

comment by raybb · 2025-12-13 · in OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

…the skills.md file for further instructions". Here's the prompt within Codex CLI that does that: https://github.com/openai/codex/blob/ad7b9d63c326d5c92049abd... I extracted that into a Gist to make it easier to read:…

comment by simonw · 2025-12-13 · in OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

…authors of new libs, apps, to choose the same licenses for giving back in the same spirit. [1]: https://github.com/openai/codex/blob/main/codex-rs/tui/src/c... [2]: https://github.com/ratatui/ratatui/pull/2241

comment by joshka · 2025-12-05 · in Show HN: Fresh – A new terminal editor built in Rust

More reports here of the weekly reset date extending several days beyond a week: https://github.com/openai/codex/issues/5999 Frustrating that OpenAI support does not help with this, and no one on the team is available to resolve critical…

comment by wahnfrieden · 2025-11-29 · in OpenAI Codex: Weekly usage limit refresh dates seem to be variable

…tool instead. Neither does OpenAI's Codex CLI - you can confirm that by looking at the source code https://github.com/openai/codex Cursor and Windsurf both use semantic search via embeddings. You can get semantic search in Claude Code…

comment by simonw · 2025-11-28 · in Beads – A memory upgrade for your coding agent

…CLI, you really really need to fix this bug. I bet Codex could do at least the client part for you! https://github.com/openai/codex/issues/2798 (Hint: Claude Code gets this right by default, despite the fact that everything else about…

comment by amluto · 2025-11-19 · in Building more with GPT-5.1-Codex-Max

Codex CLI 0.59 got released (but has no changelog text) https://github.com/openai/codex/releases/tag/rust-v0.59.0

comment by tosh · 2025-11-19 · in Building more with GPT-5.1-Codex-Max

did you address this https://github.com/openai/codex/issues/6426 ? how much more token efficient is this compared to 5.0 had to use 5.0 because 5.1 was eating tokens like crazy and seemed like a slight incremental improvement barely…

comment by agentifysh · 2025-11-19 · in Building more with GPT-5.1-Codex-Max

I haven't tried it myself yet, but it looks like OpenRouter is a supported feature of Codex already: https://github.com/openai/codex/blob/a47181e471b6efe55e95f98...

comment by simonw · 2025-11-09 · in Reverse engineering Codex CLI to get GPT-5-Codex-Mini to draw me a pelican

…the Codex CLI if you're able to and selecting the model via `/model`. npm install -g @openai/codex https://github.com/openai/codex

comment by bigwheels · 2025-10-27 · in We're in the wrong moment

…policy system is much better. Though I'm working on closing that gap by writing a custom policy https://github.com/openai/codex/blob/main/codex-rs/execpolic... Kinda sick of Codex asking for approval to run tests for each test instance

comment by maherbeg · 2025-10-20 · in Claude Code on the web

…by open-source agentic IDEs ( https://github.com/search?q=repo%3Aopenai%2Fcodex%20harness&... or https://github.com/openai/codex/discussions/1174 ) Any reason why you want to rename it? Edit: to say more about my opinions, "agentic loop"…

comment by mccoyb · 2025-09-30 · in Designing agentic loops

This is how I did it - https://github.com/openai/codex/blob/main/docs/config.md#mod... I have it go to openrouter, and then you just export the API key and run codex, works smoothly.

comment by NitpickLawyer · 2025-09-16 · in GPT-5-Codex

They added that around June 4th, here's the PR: https://github.com/openai/codex/pull/1212

comment by simonw · 2025-09-15 · in GPT-5-Codex

Apparently today is the first release with MCP support. Updates (v0.36) https://github.com/openai/codex/releases

comment by WhitneyLand · 2025-09-15 · in Addendum to GPT-5 system card: GPT-5-Codex

…CLI w/gpt-5 is already a lot more steerable than Claude Code, but any improvements are welcome! [0] https://github.com/openai/codex/blob/main/codex-rs/core/gpt_... [1] https://github.com/openai/codex/blob/main/codex-rs/core/prom...…

comment by jumploops · 2025-09-15 · in Addendum to GPT-5 system card: GPT-5-Codex

…CLI w/gpt-5 is already a lot more steerable than Claude Code, but any improvements are welcome! [0] https://github.com/openai/codex/blob/main/codex-rs/core/gpt_... [1] https://github.com/openai/codex/blob/main/codex-rs/core/prom...

comment by jumploops · 2025-09-15 · in GPT-5-Codex

…actually eager to try it today, but it've just failed with some issue which is open since July 8 ( https://github.com/openai/codex/issues/1481 ) and I gave up on it.

comment by centphe · 2025-08-08 · in Cursor CLI

…issuer certificate (_ssl.c:1006)>. Error code explanation: 500 - Server got itself in trouble. https://github.com/openai/codex/issues/1243 I am and many other similar users would love to move from Claude Code to Codex, but this is…

comment by jayseb · 2025-08-08 · in Cursor CLI

You are looking for Codex CLI [0]. 0 - https://github.com/openai/codex

comment by Game_Ender · 2025-08-07 · in GPT-5 for Developers

…for inference). [1] https://github.com/openai/harmony [2] https://github.com/openai/tiktoken [3] https://github.com/openai/codex

comment by lukax · 2025-08-05 · in Open models by OpenAI

…I believe it's now the default verison. (Previously the TypeScript implementation was the default.) https://github.com/openai/codex/tree/main/codex-rs

comment by crvdgc · 2025-07-23 · in Qwen3-Coder: Agentic coding in the world

…not sure what a closer public indicator might be. 1. https://github.com/google-gemini/gemini-cli 2. https://github.com/openai/codex 3. https://github.com/anthropics/claude-code

comment by christiangenco · 2025-07-21 · in Ask HN: Why do Cursor, Windsurf and Claude Code dominate the conversation?

They have one, though I don't think it has taken off. https://github.com/openai/codex Hard to miss — it's the second Google result for "chatgpt CLI".

comment by dcre · 2025-07-17 · in ChatGPT agent: bridging research and action

https://github.com/openai/codex

comment by Philpax · 2025-07-17 · in ChatGPT agent: bridging research and action

you can read https://github.com/openai/codex/discussions/1174 directly

comment by homarp · 2025-06-25

…coding questions The one thing I recommended to github. Lets find a random issue for example: https://github.com/openai/codex/issues/1330 Why couldnt various AI have commented some answer? Perhaps co-pilot could read it, produce a fully…

comment by incomingpain · 2025-06-23 · in How do LLMs and AI coding tools solve new problems when Stack Overflow is dead?

…Sierra in 2016) but it's still what everyone uses - here's OpenAI using it for their new Codex CLI: https://github.com/openai/codex/issues/215 Maybe the new "containers" stuff in macOS 26 is going to be a good replacement for that? It…

comment by simonw · 2025-06-15 · in How easy is it for a developer to "sandbox" a program?

…At the end of the day all do the same. a cli tool that can call tools and use them as needed. https://github.com/openai/codex http://aider.ai/

comment by tough · 2025-06-03 · in Claude Code Is My Computer

…haven't dived deeper into the codebase but seems they're thinking about sandboxing from the get-go: https://github.com/openai/codex/blob/7896b1089dbf702dd079299...

comment by diggan · 2025-06-02 · in Cloudlflare builds OAuth with Claude and publishes all the prompts

…own codebase still have "TODO" comments for the most trivial thing I can possibly imagine? < https://github.com/openai/codex/blob/rust-v0.0.2505302325/co... > made extra wtf by a comment at the top of the file laying out that requirement,…

comment by mdaniel · 2025-06-01 · in Codex CLI is going native

Looks open-source to me - https://github.com/openai/codex/tree/main/codex-rs

comment by mappu · 2025-06-01 · in Codex CLI is going native

Codex seems to also be available via CLI ( https://github.com/openai/codex ) as well as via the web ( https://chatgpt.com/codex ).

comment by diggan · 2025-05-19 · in Jules: An asynchronous coding agent

…It's not as good as claude code right now but I bet it wont take long for them to catch up. https://github.com/openai/codex/tree/main

comment by ayargz · 2025-05-19 · in Claude Code SDK

…) or Claude Code ( https://docs.anthropic.com/en/docs/claude-code/overview ) or Codex ( https://github.com/openai/codex ) or plandex ( https://github.com/plandex-ai/plandex ) or kwaak ( https://github.com/bosun-ai/kwaak ) I'd venture to…

comment by terhechte · 2025-05-09 · in Void: Open-source Cursor alternative

OpenAI has Codex CLI https://github.com/openai/codex

comment by ccheney · 2025-05-06 · in OpenAI reaches agreement to buy Windsurf for $3B

Codex merged in to allow multiple providers today - https://github.com/openai/codex/pull/247

comment by shmoogy · 2025-04-21 · in Show HN: Open Codex – OpenAI Codex CLI with open-source LLMs

…looks really simple, except I'll have to look into how their raw-exec takes care of writeableRoots: https://github.com/openai/codex/blob/0d6a98f9afa8697e57b9bae... [edit2] lol raw-exec doesn't do anything at all with writeableRoots, it's…

comment by fzzzy · 2025-04-18 · in MCP Run Python

…many inline comments. Interestingly, their agent's system prompt mentions removing inline comments https://github.com/openai/codex/blob/main/codex-cli/src/util... . > - Remove all inline comments you added as much as possible, even if they…

comment by shekhargulati · 2025-04-17 · in OpenAI Codex CLI: Lightweight coding agent that runs in your terminal

…like Claude Code? Also it looks like Open AI released a similar terminal based tool today. https://github.com/openai/codex Yes, I would say Plandex is generally similar in spirit to both Claude Code and OpenAI's new Codex tool. All three…

comment by danenania · 2025-04-17 · in Show HN: Plandex v2 – open source AI coding agent for large projects and tasks