Files

Dylan 236c4f76a6 [apply_patch] freeform apply_patch tool (#2576 )

## Summary
GPT-5 introduced the concept of [custom
tools](https://platform.openai.com/docs/guides/function-calling#custom-tools),
which allow the model to send a raw string result back, simplifying
json-escape issues. We are migrating gpt-5 to use this by default.

However, gpt-oss models do not support custom tools, only normal
functions. So we keep both tool definitions, and provide whichever one
the model family supports.

## Testing
- [x] Tested locally with various models
- [x] Unit tests pass

2025-08-22 13:42:34 -07:00

src

[apply_patch] freeform apply_patch tool (#2576 )

2025-08-22 13:42:34 -07:00

tests

[apply_patch] freeform apply_patch tool (#2576 )

2025-08-22 13:42:34 -07:00

Cargo.toml

Bridge command generation to powershell when on Windows (#2319 )

2025-08-20 16:30:34 -07:00

prompt.md

[apply-patch] Clean up apply-patch tool definitions (#2539 )

2025-08-21 20:07:41 -07:00

README.md

fix: support special --codex-run-as-apply-patch arg (#1702 )

2025-07-28 09:26:44 -07:00

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

macOS

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

Linux

Expects the binary containing codex-core to run the equivalent of 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.