Colin Young
7e07ec8f73
###### Summary - Add input_modalities to model metadata so clients can determine supported input types. - Gate image paste/attach in TUI when the selected model does not support images. - Block submits that include images for unsupported models and show a clear warning. - Propagate modality metadata through app-server protocol/model-list responses. - Update related tests/fixtures. ###### Rationale - Models support different input modalities. - Clients need an explicit capability signal to prevent unsupported requests. - Backward-compatible defaults preserve existing behavior when modality metadata is absent. ###### Scope - codex-rs/protocol, codex-rs/core, codex-rs/tui - codex-rs/app-server-protocol, codex-rs/app-server - Generated app-server types / schema fixtures ###### Trade-offs - Default behavior assumes text + image when field is absent for compatibility. - Server-side validation remains the source of truth. ###### Follow-up - Non-TUI clients should consume input_modalities to disable unsupported attachments. - Model catalogs should explicitly set input_modalities for text-only models. ###### Testing - cargo fmt --all - cargo test -p codex-tui - env -u GITHUB_APP_KEY cargo test -p codex-core --lib - just write-app-server-schema - cargo run -p codex-cli --bin codex -- app-server generate-ts --out app-server-types - test against local backend <img width="695" height="199" alt="image" src="https://github.com/user-attachments/assets/d22dd04f-5eba-4db9-a7c5-a2506f60ec44" /> --------- Co-authored-by: Josh McKinney <joshka@openai.com>
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.
When using the workspace-write sandbox policy, the Seatbelt profile allows
writes under the configured writable roots while keeping .git (directory or
pointer file), the resolved gitdir: target, and .codex read-only.
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.