## Summary This PR simplifies collaboration modes to the visible set `default | plan`, while preserving backward compatibility for older partners that may still send legacy mode names. Specifically: - Renames the old Code behavior to **Default**. - Keeps **Plan** as-is. - Removes **Custom** mode behavior (fallbacks now resolve to Default). - Keeps `PairProgramming` and `Execute` internally for compatibility plumbing, while removing them from schema/API and UI visibility. - Adds legacy input aliasing so older clients can still send old mode names. ## What Changed 1. Mode enum and compatibility - `ModeKind` now uses `Plan` + `Default` as active/public modes. - `ModeKind::Default` deserialization accepts legacy values: - `code` - `pair_programming` - `execute` - `custom` - `PairProgramming` and `Execute` variants remain in code but are hidden from protocol/schema generation. - `Custom` variant is removed; previous custom fallbacks now map to `Default`. 2. Collaboration presets and templates - Built-in presets now return only: - `Plan` - `Default` - Template rename: - `core/templates/collaboration_mode/code.md` -> `default.md` - `execute.md` and `pair_programming.md` remain on disk but are not surfaced in visible preset lists. 3. TUI updates - Updated user-facing naming and prompts from “Code” to “Default”. - Updated mode-cycle and indicator behavior to reflect only visible `Plan` and `Default`. - Updated corresponding tests and snapshots. 4. request_user_input behavior - `request_user_input` remains allowed only in `Plan` mode. - Rejection messaging now consistently treats non-plan modes as `Default`. 5. Schemas - Regenerated config and app-server schemas. - Public schema types now advertise mode values as: - `plan` - `default` ## Backward Compatibility Notes - Incoming legacy mode names (`code`, `pair_programming`, `execute`, `custom`) are accepted and coerced to `default`. - Outgoing/public schema surfaces intentionally expose only `plan | default`. - This allows tolerant ingestion of older partner payloads while standardizing new integrations on the reduced mode set. ## Codex author `codex fork 019c1fae-693b-7840-b16e-9ad38ea0bd00`
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.