Files

zhao-oai 36113509f2 verify mime type of images (#5888 )

solves: https://github.com/openai/codex/issues/5675

Block non-image uploads in the view_image workflow. We now confirm the
file’s MIME is image/* before building the data URL; otherwise we emit a
“unsupported MIME type” error to the model. This stops the agent from
sending application/json blobs that the Responses API rejects with 400s.

<img width="409" height="556" alt="Screenshot 2025-10-28 at 1 15 10 PM"
src="https://github.com/user-attachments/assets/a92199e8-2769-4b1d-8e33-92d9238c90fe"
/>

2025-10-28 14:52:51 -07:00

src

remove beta experimental header (#5892 )

2025-10-28 21:28:56 +00:00

templates

Added model summary and risk assessment for commands that violate sandbox policy (#5536 )

2025-10-24 15:23:44 -07:00

tests

verify mime type of images (#5888 )

2025-10-28 14:52:51 -07:00

Cargo.toml

[Auth] Choose which auth storage to use based on config (#5792 )

2025-10-27 19:41:49 -07:00

gpt_5_codex_prompt.md

feat: instruct model to use apply_patch + avoid destructive changes (#4742 )

2025-10-04 12:49:50 -07:00

prompt.md

Add file reference guidelines to gpt-5 prompt (#3651 )

2025-09-15 08:35:30 -07:00

README.md

docs: align sandbox defaults, dedupe sections and improve getting started guide (#5357 )

2025-10-19 16:41:10 -07:00

review_prompt.md

Review Mode (Core) (#3401 )

2025-09-12 23:25:10 +00:00

README.md

codex-core

This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.

Dependencies

Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this support matrix is:

macOS

Expects /usr/bin/sandbox-exec to be present.

Linux

Expects the binary containing codex-core to run the equivalent of codex sandbox linux (legacy alias: codex debug landlock) when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.

All Platforms

Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.