## Why
With the local model layer and app-server routing in place from PR1,
this PR moves the active TUI runtime onto app-server notifications. The
affected pieces share the same event flow, so the command surface,
session state, bottom-pane prompts, chat rendering, history/status
views, and tests move together to keep the stacked branch buildable.
This PR also removes the obsolete compatibility surface that is no
longer used after the migration. The proposed protocol-boundary verifier
layer was dropped from the stack; enforcing that final boundary will be
simpler once `codex-tui` no longer needs any `codex_protocol`
references.
This PR is part 2 of a 2-PR stack:
1. Add TUI-owned replacement models and extract app-server event
routing.
2. Move the active TUI flow to app-server notifications and delete
obsolete adapter code.
## What changed
- Rewired app command and session handling to use app-server request and
notification shapes.
- Moved approval overlays, request-user-input flows, MCP elicitation,
realtime events, and review commands onto the app-server-facing model
surface.
- Updated chat rendering, history cells, status views, multi-agent UI,
replay state, and TUI tests to use app-server notifications plus the
local models introduced in PR1.
- Deleted `codex-rs/tui/src/app/app_server_adapter.rs` and the
superseded `chatwidget/tests/background_events.rs` fixture path.
## Verification
- `cargo check -p codex-tui --tests`
- Top of stack: `cargo test -p codex-tui`
Implements #18162
This updates the TUI terminal title to show an explicit action-required
state when Codex is blocked on user approval or input. The terminal
title now uses the activity title item to cover both active work and
blocked-on-user states, while still accepting the legacy spinner config
value.
Changes
- Rename the terminal title item from `spinner` to `activity` while
preserving legacy config compatibility
- Show `[ ! ] Action Required `while approval or input overlays are
active, with a blinking `[ . ]` alternate state
- Suppress the normal working spinner while Codex is blocked on user
action
- Add targeted coverage for action-required title behavior and legacy
title-item parsing
Testing
- Trigger an approval or input modal and confirm the tab title
alternates between `[ ! ] Action Required` and `[ . ] Action Required`
- Disable the activity title item and confirm the action-required title
does not appear
- Resolve the prompt and confirm the title returns to the normal
spinning/idel state
https://github.com/user-attachments/assets/e9ecc530-a6be-4fd7-b9a6-d550a790eb2c
Adds the TUI user experience for goals on top of the core runtime from
PR 4.
## Why
Users need a direct TUI control surface for long-running goals. The UI
should make the current goal visible, support common goal actions
without waiting for a model turn, and avoid confusing end-of-turn
notifications while an active goal is immediately continuing.
## What changed
- Added `/goal` summary rendering for the current goal, including
active, paused, budget-limited, and complete states.
- Added `/goal <objective>` creation/replacement through the app-server
goal API rather than a model prompt.
- Added `/goal clear`, `/goal pause`, and `/goal unpause` command
variants.
- Added a confirmation menu when the user enters a new goal while
another goal already exists.
- Updated `/goal` help and summary tip text so it reflects the supported
command variants without advertising slash-command token budgets.
- Added footer/statusline goal indicators, including elapsed time and
token budget display when a budget exists from API/tool-created goals.
- Consumes goal updated/cleared notifications so the TUI stays in sync
with external app-server changes.
- Suppresses end-of-turn desktop notifications only when a goal is still
active and follow-up work is expected.
- Preserves slash-command history behavior and avoids leaking queued
`/goal` state into unrelated submissions.
## Verification
- Added TUI unit and snapshot coverage for goal command availability,
summary rendering, control commands, replacement menu behavior,
status/footer display, notification handling, and command history.
## Why
Enterprise and business-like ChatGPT plans should get Codex's Fast
service tier by default when the user or caller has not made an explicit
service-tier choice. At the same time, callers need a durable way to
choose standard routing without adding a new persisted `standard`
service tier value. This keeps existing config compatibility while
letting core own the managed default policy.
## What changed
- Resolve the effective service tier in core at session creation:
explicit `fast` or `flex` wins, explicit null/clear or
`[notice].fast_default_opt_out = true` resolves to standard routing, and
otherwise eligible ChatGPT plans resolve to Fast when FastMode is
enabled.
- Add `[notice].fast_default_opt_out` as the persisted opt-out marker
for managed Fast defaults.
- Treat app-server/TUI `service_tier: null` as an explicit
standard/clear choice by preserving that intent through config loading.
- Update TUI rendering to use core's effective service tier for startup
and status surfaces while still keeping `config.service_tier` as the
explicit configured choice.
- Update `/fast off` to clear `service_tier`, persist the opt-out
marker, and send explicit standard for subsequent turns.
## Verification
- Added unit coverage for config override/notice handling, service-tier
resolution, runtime null clearing, and `/fast off` turn propagation.
- `cargo build -p codex-cli`
Full test suite was not run locally per author request.
This change aligns the `/statusline` and `/title` UIs around the same
normalized item model so both surfaces use consistent ids, labels, and
preview semantics. It keeps the shared preview work from #18435 ,
tightens the remaining mismatches by standardizing item naming, expands
title/status item coverage where appropriate, and makes `/title` preview
use the same title-specific formatting path as the real rendered
terminal title.
- Normalizes persisted item ids and keeps legacy aliases for
compatibility
- Aligns `status-line` and `terminal-title` items with the shared
preview model
- Routes `terminal-title` preview through title-specific formatting and
truncation
- Updates the affected status/title setup snapshots
Added to `/statusline`:
- status
- task-progress
Normalized in `/statusline`:
- model-name -> model
- project-root -> project-name
Added to `/title`:
- current-dir
- context-remaining
- context-used
- five-hour-limit
- weekly-limit
- codex-version
- used-tokens
- total-input-tokens
- total-output-tokens
- session-id
- fast-mode
- model-with-reasoning
Normalized in `/title`:
- project -> project-name
- thread -> thread-title
- model-name -> model
This PR makes the `/statusline` and `/title` setup UIs share one
preview-value source instead of each surface using its own examples.
Both pickers now render consistent live values when available, and
stable placeholders when they are not. It also resolves live preview
values at the shared preview-item layer, so `/title` preview can use
real runtime values for title-specific cases like status text, task
progress, and project-name fallback behavior.
- Adds a shared preview data model for status surfaces
- Maps status-line items and terminal-title items onto that shared
preview list
- Feeds both setup views from the same chatwidget-derived preview data,
with terminal-title-specific formatting applied before `/title` preview
renders
- Keeps project-root preview aligned with status-line behavior while
project in /title keeps its title fallback/truncation behavior
- Adds snapshot coverage for live-only, hardcoded-only, and mixed cases
Test Steps
- Open Codex TUI and launch `/statusline`.
- Toggle and reorder items, then verify the preview uses current session
values when possible, and placeholder values for missing values (ex: no
thread ID).
- Open `/title` and verify it shows the same normalized values,
including live status/task-progress values when available.
Addresses #18045
Problem: `/statusline` exposed both `context-remaining` and
`context-remaining-percent` after conflicting PRs attempted to address
the same context-status issue, including #17637, allowing duplicate
footer segments.
Solution: Remove the duplicate `context-remaining-percent` status-line
item and update status-line tests and snapshots to use only canonical
`context-remaining`.
Addresses #17313
Problem: The visual context meter in the status line was confusing and
continued to draw negative feedback, and context reporting should remain
an explicit opt-in rather than part of the default footer.
Solution: Remove the visual meter, restore opt-in context remaining/used
percentage items that explicitly say "Context", keep existing
context-usage configs working as a hidden alias, and update the setup
text and snapshots.
- Add thread-title as an optional TUI status line item, omitted unless
the user has set a custom name (`ChatWidget.thread_name`).
- Refresh the status line when threads are renamded
- Add snapshot coverage for renamed-thread footer behavior.
Problem: The statusline reported context as an “X% left” value, which
could be mistaken for quota, and context usage was included in the
default footer.
Solution: Render configured context status items as a filling context
meter, preserve `context-used` as a legacy alias while hiding it from
the setup menu, and remove context from the default statusline. It will
still be available as an opt-in option for users who want to see it.
<img width="317" height="39" alt="image"
src="https://github.com/user-attachments/assets/3aeb39bb-f80d-471f-88fe-d55e25b31491"
/>
This is a follow-up to https://github.com/openai/codex/pull/15922. That
previous PR deleted the old `tui` directory and left the new
`tui_app_server` directory in place. This PR renames `tui_app_server` to
`tui` and fixes up all references.
This is the part 1 of 2 PRs that will delete the `tui` /
`tui_app_server` split. This part simply deletes the existing `tui`
directory and marks the `tui_app_server` feature flag as removed. I left
the `tui_app_server` feature flag in place for now so its presence
doesn't result in an error. It is simply ignored.
Part 2 will rename the `tui_app_server` directory `tui`. I did this as
two parts to reduce visible code churn.
Migrate `cwd` and related session/config state to `AbsolutePathBuf` so
downstream consumers consistently see absolute working directories.
Add test-only `.abs()` helpers for `Path`, `PathBuf`, and `TempDir`, and
update branch-local tests to use them instead of
`AbsolutePathBuf::try_from(...)`.
For the remaining TUI/app-server snapshot coverage that renders absolute
cwd values, keep the snapshots unchanged and skip the Windows-only cases
where the platform-specific absolute path layout differs.
## Problem
When multiple Codex sessions are open at once, terminal tabs and windows
are hard to distinguish from each other. The existing status line only
helps once the TUI is already focused, so it does not solve the "which
tab is this?" problem.
This PR adds a first-class `/title` command so the terminal window or
tab title can carry a short, configurable summary of the current
session.
## Screenshot
<img width="849" height="320" alt="image"
src="https://github.com/user-attachments/assets/8b112927-7890-45ed-bb1e-adf2f584663d"
/>
## Mental model
`/statusline` and `/title` are separate status surfaces with different
constraints. The status line is an in-app footer that can be denser and
more detailed. The terminal title is external terminal metadata, so it
needs short, stable segments that still make multiple sessions easy to
tell apart.
The `/title` configuration is an ordered list of compact items. By
default it renders `spinner,project`, so active sessions show
lightweight progress first while idle sessions still stay easy to
disambiguate. Each configured item is omitted when its value is not
currently available rather than forcing a placeholder.
## Non-goals
This does not merge `/title` into `/statusline`, and it does not add an
arbitrary free-form title string. The feature is intentionally limited
to a small set of structured items so the title stays short and
reviewable.
This also does not attempt to restore whatever title the terminal or
shell had before Codex started. When Codex clears the title, it clears
the title Codex last wrote.
## Tradeoffs
A separate `/title` command adds some conceptual overlap with
`/statusline`, but it keeps title-specific constraints explicit instead
of forcing the status line model to cover two different surfaces.
Title refresh can happen frequently, so the implementation now shares
parsing and git-branch orchestration between the status line and title
paths, and caches the derived project-root name by cwd. That keeps the
hot path cheap without introducing background polling.
## Architecture
The TUI gets a new `/title` slash command and a dedicated picker UI for
selecting and ordering terminal-title items. The chosen ids are
persisted in `tui.terminal_title`, with `spinner` and `project` as the
default when the config is unset. `status` remains available as a
separate text item, so configurations like `spinner,status` render
compact progress like `⠋ Working`.
`ChatWidget` now refreshes both status surfaces through a shared
`refresh_status_surfaces()` path. That shared path parses configured
items once, warns on invalid ids once, synchronizes shared cached state
such as git-branch lookup, then renders the footer status line and
terminal title from the same snapshot.
Low-level OSC title writes live in `codex-rs/tui/src/terminal_title.rs`,
which owns the terminal write path and last-mile sanitization before
emitting OSC 0.
## Security
Terminal-title text is treated as untrusted display content before Codex
emits it. The write path strips control characters, removes invisible
and bidi formatting characters that can make the title visually
misleading, normalizes whitespace, and caps the emitted length.
References used while implementing this:
- [xterm control
sequences](https://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
- [WezTerm escape sequences](https://wezterm.org/escape-sequences.html)
- [CWE-150: Improper Neutralization of Escape, Meta, or Control
Sequences](https://cwe.mitre.org/data/definitions/150.html)
- [CERT VU#999008 (Trojan Source)](https://kb.cert.org/vuls/id/999008)
- [Trojan Source disclosure site](https://trojansource.codes/)
- [Unicode Bidirectional Algorithm (UAX
#9)](https://www.unicode.org/reports/tr9/)
- [Unicode Security Considerations (UTR
#36)](https://www.unicode.org/reports/tr36/)
## Observability
Unknown configured title item ids are warned about once instead of
repeatedly spamming the transcript. Live preview applies immediately
while the `/title` picker is open, and cancel rolls the in-memory title
selection back to the pre-picker value.
If terminal title writes fail, the TUI emits debug logs around set and
clear attempts. The rendered status label intentionally collapses richer
internal states into compact title text such as `Starting...`, `Ready`,
`Thinking...`, `Working...`, `Waiting...`, and `Undoing...` when
`status` is configured.
## Tests
Ran:
- `just fmt`
- `cargo test -p codex-tui`
At the moment, the red Windows `rust-ci` failures are due to existing
`codex-core` `apply_patch_cli` stack-overflow tests that also reproduce
on `main`. The `/title`-specific `codex-tui` suite is green.
Eric TrautandGitHub
canvrno-oaiandGitHub
Shijie RaoandGitHub
pakrym-oaiandGitHub
Yaroslav VolovichandGitHub