95b332c820
## Why The Codex App has animated pets, but the TUI had no equivalent ambient companion surface. This brings that experience into terminal Codex while keeping the main chat flow usable: the pet should feel present, but it cannot cover transcript text, composer input, approvals, or picker content. The feature also needs to be terminal-aware. Different terminals support different image protocols, tmux can interfere with image rendering, and some users will want pets disabled entirely or anchored differently depending on their layout. <table> <tr><td> <img width="4110" height="2584" alt="CleanShot 2026-05-05 at 12 41 45@2x" src="https://github.com/user-attachments/assets/68a1fcbc-2104-48d6-b834-69c6aaa95cdf" /> <p align="center">macOS - Ghostty, iTerm2 and WezTerm with Custom Pet</p> </td></tr> <tr><td> ![Uploading CleanShot 2026-05-10 at 20.28.30.png…]() <p align="center">Windows Terminal</p> </td></tr> <tr><td> <img width="3902" height="2752" alt="CleanShot 2026-05-05 at 12 39 02@2x" src="https://github.com/user-attachments/assets/300e2931-6b00-467e-91cb-ab8e28470500" /> <p align="center">Linux - WezTerm and Ghostty</p> </td></tr> </table> ## What Changed - Add a TUI ambient pet renderer in `codex-rs/tui/src/pets/`. - Port the app-style pet animation states so the sprite changes with task status, waiting-for-input states, review/ready states, and failures. - Add `/pets` selection UI with a preview pane, loading state, built-in pet choices, and a first-row `Disable terminal pets` option. - Download built-in pet spritesheets on demand from the same public CDN path already used by Android, under `https://persistent.oaistatic.com/codex/pets/v1/...`, and cache them locally under `~/.codex/cache/tui-pets/`. - Keep custom pets local. - Add config support for pet selection, disabling pets, and choosing whether the pet follows the composer bottom or anchors to the terminal bottom. - Reserve layout space around the pet so transcript wrapping, live responses, and composer input do not render underneath the sprite. - Gate image rendering by terminal capability, disable image pets under tmux, and support both Kitty Graphics and SIXEL terminals. - Add redraw cleanup for terminal image artifacts, including sixel cell clearing. ## Current Scope - This is an initial TUI version of ambient pets, not full App parity. - It focuses on ambient sprite rendering, `/pets` selection, custom pets, terminal capability gating, and on-demand CDN-backed built-in assets. - The ambient text overlay is currently disabled, so the TUI renders the pet sprite without extra status text beside it. ## How to Test 1. Start Codex TUI in a terminal with image support. 2. Run `/pets`. 3. Confirm the picker shows built-in pets plus custom pets, and the first item is `Disable terminal pets`. 4. On a fresh `~/.codex/cache/tui-pets/`, move onto a built-in pet and confirm the first preview downloads the spritesheet from the shared Codex pets CDN and renders successfully. 5. Move through the pet list and confirm subsequent built-in previews use the local cache. 6. Select a pet, then send and receive messages. Confirm transcript and composer text wrap before the pet instead of rendering underneath the sprite. 7. Change the pet anchor setting and confirm the pet can either follow the composer bottom or sit at the terminal bottom. 8. Return to `/pets`, choose `Disable terminal pets`, and confirm the sprite disappears cleanly. Targeted tests: - `cargo test -p codex-tui ambient_pet_` - `cargo test -p codex-tui resize_reflow_wraps_transcript_early_when_pet_is_enabled` - `cargo insta pending-snapshots`
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.
Network access and filesystem read/write roots are controlled by
SandboxPolicy. Seatbelt consumes the resolved policy and enforces it.
Seatbelt also keeps the legacy default preferences read access
(user-preference-read) needed for cfprefs-backed macOS behavior.
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.
Legacy SandboxPolicy / sandbox_mode configs are still supported on Linux.
They can continue to use the legacy Landlock path when the split filesystem
policy is sandbox-equivalent to the legacy model after cwd resolution.
Split filesystem policies that need direct FileSystemSandboxPolicy
enforcement, such as read-only or denied carveouts under a broader writable
root, automatically route through bubblewrap. The legacy Landlock path is used
only when the split filesystem policy round-trips through the legacy
SandboxPolicy model without changing semantics. That includes overlapping
cases like /repo = write, /repo/a = none, /repo/a/b = write, where the
more specific writable child must reopen under a denied parent.
The Linux sandbox helper prefers the first bwrap found on PATH outside the
current working directory whenever it is available. If bwrap is present but
too old to support --argv0, the helper keeps using system bubblewrap and
switches to a no---argv0 compatibility path for the inner re-exec. If
bwrap is missing, it falls back to the bundled codex-resources/bwrap
binary shipped with Codex and Codex surfaces a startup warning through its
normal notification path instead of printing directly from the sandbox helper.
Codex also surfaces a startup warning when bubblewrap cannot create user
namespaces. WSL2 uses the normal Linux bubblewrap path. WSL1 is not supported
for bubblewrap sandboxing because it cannot create the required user
namespaces, so Codex rejects sandboxed shell commands that would enter the
bubblewrap path before invoking bwrap.
Windows
Legacy SandboxPolicy / sandbox_mode configs are still supported on
Windows. Legacy read-only and workspace-write policies imply full
filesystem read access; exact readable roots are represented by split
filesystem policies instead.
The elevated Windows sandbox also supports:
- legacy
ReadOnlyandWorkspaceWritebehavior - split filesystem policies that need exact readable roots, exact writable roots, or extra read-only carveouts under writable roots
- backend-managed system read roots required for basic execution, such as
C:\Windows,C:\Program Files,C:\Program Files (x86), andC:\ProgramData, when a split filesystem policy requests platform defaults
The unelevated restricted-token backend still supports the legacy full-read
Windows model for legacy ReadOnly and WorkspaceWrite behavior. It also
supports a narrow split-filesystem subset: full-read split policies whose
writable roots still match the legacy WorkspaceWrite root set, but add extra
read-only carveouts under those writable roots.
New [permissions] / split filesystem policies remain supported on Windows
only when they can be enforced directly by the selected Windows backend or
round-trip through the legacy SandboxPolicy model without changing semantics.
Policies that would require direct explicit unreadable carveouts (none) or
reopened writable descendants under read-only carveouts still fail closed
instead of running with weaker enforcement.
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.