73 Commits

• Warn users on enabling underdevelopment features (#9954)

  <img width="938" height="73" alt="image"
  src="https://github.com/user-attachments/assets/a2d5ac46-92c5-4828-b35e-0965c30cdf36"
  />

  Ahmed Ibrahim · 2026-01-27 01:58:05 +00:00
  c900de271a
• Aligned feature stage names with public feature maturity stages (#9929)

  We've recently standardized a [feature maturity
  model](https://developers.openai.com/codex/feature-maturity) that we're
  using in our docs and support forums to communicate expectations to
  users. This PR updates the internal stage names and descriptions to
  match.
  
  This change involves a simple internal rename and updates to a few
  user-visible strings. No functional change.

  Eric Traut · 2026-01-26 11:43:36 -08:00
  b77bf4d36d
• Mark collab as beta (#9834)

  Co-authored-by: jif-oai <jif@openai.com>

  pakrym-oai · 2026-01-25 11:13:21 +01:00
  b332482eb1
• Have a coding mode and only show coding and plan (#9802)
  Ahmed Ibrahim · 2026-01-23 19:28:49 -08:00
  b3127e2eeb
• [connectors] Support connectors part 1 - App server & MCP (#9667)

  In order to make Codex work with connectors, we add a built-in gateway
  MCP that acts as a transparent proxy between the client and the
  connectors. The gateway MCP collects actions that are accessible to the
  user and sends them down to the user, when a connector action is chosen
  to be called, the client invokes the action through the gateway MCP as
  well.
  
   - [x] Add the system built-in gateway MCP to list and run connectors.
   - [x] Add the app server methods and protocol

  Matthew Zeng · 2026-01-22 16:48:43 -08:00
  a2c829a808
• feat(tui): retire the tui2 experiment (#9640)

  ## Summary
  - Retire the experimental TUI2 implementation and its feature flag.
  - Remove TUI2-only config/schema/docs so the CLI stays on the
  terminal-native path.
  - Keep docs aligned with the legacy TUI while we focus on redraw-based
  improvements.
  
  ## Customer impact
  - Retires the TUI2 experiment and keeps Codex on the proven
  terminal-native UI while we invest in redraw-based improvements to the
  existing experience.
  
  ## Migration / compatibility
  - If you previously set tui2-related options in config.toml, they are
  now ignored and Codex continues using the existing terminal-native TUI
  (no action required).
  
  ## Context
  - What worked: a transcript-owned viewport delivered excellent resize
  rewrap and high-fidelity copy (especially for code).
  - Why stop: making that experience feel fully native across the
  environment matrix (terminal emulator, OS, input modality, multiplexer,
  font/theme, alt-screen behavior) creates a combinatorial explosion of
  edge cases.
  - What next: we are focusing on redraw-based improvements to the
  existing terminal-native TUI so scrolling, selection, and copy remain
  native while resize/redraw correctness improves.
  
  ## Testing
  - just write-config-schema
  - just fmt
  - cargo clippy --fix --all-features --tests --allow-dirty --allow-no-vcs
  -p codex-core
  - cargo clippy --fix --all-features --tests --allow-dirty --allow-no-vcs
  -p codex-cli
  - cargo check
  - cargo test -p codex-core
  - cargo test -p codex-cli

  Josh McKinney · 2026-01-22 01:02:29 +00:00
  a489b64cb5
• Feature to auto-enable websockets transport (#9578)
  pakrym-oai · 2026-01-20 20:32:06 -08:00
  527b7b4c02
• Enable remote models (#9554)
  Ahmed Ibrahim · 2026-01-20 23:17:22 +00:00
  de4980d2ac
• Fix typo in feature name from 'Mult-agents' to 'Multi-agents' (#9542)

  Fixes a typo in a feature description.

  Simon Willison · 2026-01-20 10:55:36 -08:00
  46a4a03083
• chore: collab in experimental (#9525)
  jif-oai · 2026-01-20 10:19:06 +00:00
  483239d861
• chore: fix beta VS experimental (#9496)
  jif-oai · 2026-01-19 19:39:23 +00:00
  070935d5e8
• Add collaboration modes test prompts (#9443)

  # External (non-OpenAI) Pull Request Requirements
  
  Before opening this Pull Request, please read the dedicated
  "Contributing" markdown file or your PR may be closed:
  https://github.com/openai/codex/blob/main/docs/contributing.md
  
  If your PR conforms to our contribution guidelines, replace this text
  with a detailed and high quality description of your changes.
  
  Include a link to a bug report or enhancement request.

  Ahmed Ibrahim · 2026-01-18 11:39:08 -08:00
  f72f87fbee
• chore(windows) Enable Powershell UTF8 feature (#9195)

  ## Summary
  We've received a lot of positive feedback about this feature, so we're
  going to enable it by default.

  Dylan Hurd · 2026-01-16 01:29:12 +00:00
  3cabb24210
• Rename hierarchical_agents to child_agents_md (#9215)

  Clearer name

  pakrym-oai · 2026-01-14 19:14:24 +00:00
  e6d2ef432d
• add generated jsonschema for config.toml (#8956)

  ### What
  Add JSON Schema generation for `config.toml`, with checked‑in
  `docs/config.schema.json`. We can move the schema elsewhere if preferred
  (and host it if there's demand).
  
  Add fixture test to prevent drift and `just write-config-schema` to
  regenerate on schema changes.
  
  Generate MCP config schema from `RawMcpServerConfig` instead of
  `McpServerConfig` because that is the runtime type used for
  deserialization.
  
  Populate feature flag values into generated schema so they can be
  autocompleted.
  
  ### Tests
  Added tests + regenerate script to prevent drift. Tested autocompletions
  using generated jsonschema locally with Even Better TOML.
  
  
  
  https://github.com/user-attachments/assets/5aa7cd39-520c-4a63-96fb-63798183d0bc

  sayan-oai · 2026-01-13 10:22:51 -08:00
  40e2405998
• Send message by default mid turn. queue messages by tab (#9077)

  https://github.com/user-attachments/assets/03838730-4ddc-44df-a2c7-cb8ecda78660

  Ahmed Ibrahim · 2026-01-12 23:06:35 -08:00
  cbca43d57a
• Add hierarchical agent prompt (#8996)
  pakrym-oai · 2026-01-09 13:47:37 -08:00
  acfd94f625
• feat: first pass on clb tool (#8930)
  jif-oai · 2026-01-09 11:54:05 +00:00
  568b938c80
• feat: metrics capabilities (#8318)

  Add metrics capabilities to Codex. The `README.md` is up to date.
  
  This will not be merged with the metrics before this PR of course:
  https://github.com/openai/codex/pull/8350

  jif-oai · 2026-01-08 11:47:36 +00:00
  634650dd25
• Add feature for optional request compression (#8767)

  Adds a new feature
  `enable_request_compression` that will compress using zstd requests to
  the codex-backend. Currently only enabled for codex-backend so only enabled for openai providers when using chatgpt::auth even when the feature is enabled
  
  Added a new info log line too for evaluating the compression ratio and
  overhead off compressing before requesting. You can enable with
  `RUST_LOG=$RUST_LOG,codex_client::transport=info`
  
  ```
  2026-01-06T00:09:48.272113Z  INFO codex_client::transport: Compressed request body with zstd pre_compression_bytes=28914 post_compression_bytes=11485 compression_duration_ms=0
  ```

  Channing Conger · 2026-01-07 13:21:40 -08:00
  21c6d40a44
• chore: drop useless feature flags (#8850)
  jif-oai · 2026-01-07 19:54:32 +00:00
  1253d19641
• chore: rename unified exec sessions (#8822)

  Renaming done by Codex

  jif-oai · 2026-01-07 16:12:47 +00:00
  4cef89a122
• add web_search_cached flag (#8795)

  Add `web_search_cached` feature to config. Enables `web_search` tool
  with access only to cached/indexed results (see
  [docs](https://platform.openai.com/docs/guides/tools-web-search#live-internet-access)).
  
  This takes precedence over the existing `web_search_request`, which
  continues to enable `web_search` over live results as it did before.
  
  `web_search_cached` is disabled for review mode, as `web_search_request`
  is.

  sayan-oai · 2026-01-06 14:53:59 -08:00
  54ded1a3c0
• Attach more tags to feedback submissions (#8688)

  Attach more tags to sentry feedback so it's easier to classify and debug
  without having to scan through logs.
  
  Formatting isn't amazing but it's a start.
  <img width="1234" height="276" alt="image"
  src="https://github.com/user-attachments/assets/521a349d-f627-4051-b511-9811cd5cd933"
  />

  pakrym-oai · 2026-01-02 16:51:03 -08:00
  1b5095b5d1
• feat: support in-repo .codex/config.toml entries as sources of config info (#8354)

  - We now support `.codex/config.toml` in repo (from `cwd` up to the
  first `.git` found, if any) as layers in `ConfigLayerStack`. A new
  `ConfigLayerSource::Project` variant was added to support this.
  - In doing this work, I realized that we were resolving relative paths
  in `config.toml` after merging everything into one `toml::Value`, which
  is wrong: paths should be relativized with respect to the folder
  containing the `config.toml` that was deserialized. This PR introduces a
  deserialize/re-serialize strategy to account for this in
  `resolve_config_paths()`. (This is why `Serialize` is added to so many
  types as part of this PR.)
  - Added tests to verify this new behavior.
  
  
  
  ---
  [//]: # (BEGIN SAPLING FOOTER)
  Stack created with [Sapling](https://sapling-scm.com). Best reviewed
  with [ReviewStack](https://reviewstack.dev/openai/codex/pull/8354).
  * #8359
  * __->__ #8354

  Michael Bolin · 2025-12-22 11:07:36 -08:00
  8ff16a7714
• feat(windows) start powershell in utf-8 mode (#7902)

  ## Summary
  Adds a FeatureFlag to enforce UTF8 encoding in powershell, particularly
  Windows Powershell v5. This should help address issues like #7290.
  
  Notably, this PR does not include the ability to parse `apply_patch`
  invocations within UTF8 shell commands (calls to the freeform tool
  should not be impacted). I am leaving this out of scope for now. We
  should address before this feature becomes Stable, but those cases are
  not the default behavior at this time so we're okay for experimentation
  phase. We should continue cleaning up the `apply_patch::invocation`
  logic and then can handle it more cleanly.
  
  ## Testing
  - [x] Adds additional testing

  Dylan Hurd · 2025-12-22 09:36:44 -08:00
  33e1d0844a
• chore: un-ship undo (#8424)
  jif-oai · 2025-12-22 09:53:03 +01:00
  7a8407bbb6
• Chore: remove rmcp feature and exp flag usages (#8087)

  ### Summary
  With codesigning on Mac, Windows and Linux, we should be able to safely
  remove `features.rmcp_client` and `use_experimental_use_rmcp_client`
  check from the codebase now.

  Shijie Rao · 2025-12-20 14:18:00 -08:00
  987dd7fde3
• Revert "Keep skills feature flag default OFF for windows." (#8325)

  Reverts openai/codex#8308

  xl-openai · 2025-12-19 16:22:14 +00:00
  eeda6a5004
• Keep skills feature flag default OFF for windows. (#8308)

  Keep windows OFF first.

  xl-openai · 2025-12-18 21:57:15 -08:00
  6f94a90797
• skills feature default on. (#8297)

  skills default on.

  xl-openai · 2025-12-18 18:26:46 -08:00
  d35337227a
• fix: remove duplicate shell_snapshot FeatureSpec (#8274)

  regression: #8199
  
  Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

  Koichi Shiraishi · 2025-12-18 15:55:47 -08:00
  2d9826098e
• feat: add name to beta features (#8266)

  Add a name to Beta features
  
  <img width="906" height="153" alt="Screenshot 2025-12-18 at 16 42 49"
  src="https://github.com/user-attachments/assets/d56f3519-0613-4d9a-ad4d-38b1a7eb125a"
  />

  jif-oai · 2025-12-18 16:59:46 +00:00
  aea47b6553
• chore: add beta features (#8201)
  jif-oai · 2025-12-18 13:09:12 +00:00
  1cfacbf56d
• Reintroduce feature flags for skills. (#8244)

  1. Reintroduce feature flags for skills;
  2. UI tweaks (truncate descriptions, better validation error display).

  xl-openai · 2025-12-18 01:14:11 -08:00
  5c8d22138a
• Support SYSTEM skills. (#8220)

  1. Remove PUBLIC skills and introduce SYSTEM skills embedded in the
  binary and installed into $CODEX_HOME/skills/.system at startup.
  2. Skills are now always enabled (feature flag removed).
  3. Update skills/list to accept forceReload and plumb it through (not
  used by clients yet).

  xl-openai · 2025-12-17 18:48:28 -08:00
  da3869eeb6
• chore: move back stuff out of beta program (#8199)
  jif-oai · 2025-12-17 17:58:47 +00:00
  a2cc0032e0
• feat: experimental menu (#8071)

  This will automatically render any `Stage::Beta` features.
  
  The change only gets applied to the *next session*. This started as a
  bug but actually this is a good thing to prevent out of distribution
  push
  
  <img width="986" height="288" alt="Screenshot 2025-12-15 at 15 38 35"
  src="https://github.com/user-attachments/assets/78b7a71d-0e43-4828-a118-91c5237909c7"
  />
  
  
  <img width="509" height="109" alt="Screenshot 2025-12-15 at 17 35 44"
  src="https://github.com/user-attachments/assets/6933de52-9b66-4abf-b58b-a5f26d5747e2"
  />

  jif-oai · 2025-12-17 17:08:03 +00:00
  ac6ba286aa
• better name for windows sandbox features (#8077)

  `--enable enable...` is a bad look

  iceweasel-oai · 2025-12-15 10:15:40 -08:00
  b4635ccc07
• Elevated Sandbox 4 (#7889)
  iceweasel-oai · 2025-12-12 12:30:38 -08:00
  677732ff65
• fix: remove duplicated parallel FeatureSpec (#7823)

  regression: #7589
  
  Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

  Koichi Shiraishi · 2025-12-10 10:23:01 -08:00
  9f40d6eeeb
• Removed experimental "command risk assessment" feature (#7799)

  This experimental feature received lukewarm reception during internal
  testing. Removing from the code base.

  Eric Traut · 2025-12-10 09:48:11 -08:00
  c4af707e09
• feat(tui2): add feature-flagged tui2 frontend (#7793)

  Introduce a new codex-tui2 crate that re-exports the existing
  interactive TUI surface and delegates run_main directly to codex-tui.
  This keeps behavior identical while giving tui2 its own crate for future
  viewport work.
  
  Wire the codex CLI to select the frontend via the tui2 feature flag.
  When the merged CLI overrides include features.tui2=true (e.g. via
  --enable tui2), interactive runs are routed through
  codex_tui2::run_main; otherwise they continue to use the original
  codex_tui::run_main.
  
  Register Feature::Tui2 in the core feature registry and add the tui2
  crate and dependency entries so the new frontend builds alongside the
  existing TUI.
  
  This is a stub that only wires up the feature flag for this.
  
  <img width="619" height="364" alt="image"
  src="https://github.com/user-attachments/assets/4893f030-932f-471e-a443-63fe6b5d8ed9"
  />

  Josh McKinney · 2025-12-09 16:23:53 -08:00
  0c8828c5e2
• feat: shell snapshotting (#7641)
  jif-oai · 2025-12-09 18:36:58 +00:00
  7836aeddae
• chore: enable parallel tc (#7589)
  jif-oai · 2025-12-09 17:00:56 +00:00
  6382dc2338
• Add remote models feature flag (#7648)

  # External (non-OpenAI) Pull Request Requirements
  
  Before opening this Pull Request, please read the dedicated
  "Contributing" markdown file or your PR may be closed:
  https://github.com/openai/codex/blob/main/docs/contributing.md
  
  If your PR conforms to our contribution guidelines, replace this text
  with a detailed and high quality description of your changes.
  
  Include a link to a bug report or enhancement request.

  Ahmed Ibrahim · 2025-12-07 09:47:48 -08:00
  53a486f7ea
• chore: default warning messages to true (#7588)
  jif-oai · 2025-12-04 17:29:23 +00:00
  1b2509f05a
• feat: add warning message for the model (#7445)

  Add a warning message as a user turn to the model if the model does not
  behave as expected (here, for example, if the model opens too many
  `unified_exec` sessions)

  jif-oai · 2025-12-02 11:56:00 +00:00
  9ee855ec57
• feat: experimental support for skills.md (#7412)

  This change prototypes support for Skills with the CLI. This is an
  **experimental** feature for internal testing.
  
  ---------
  
  Co-authored-by: Gav Verma <gverma@openai.com>

  Thibault Sottiaux · 2025-12-01 20:22:35 -08:00
  a8d5ad37b8
• Delete shell_command feature (#7024)
  pakrym-oai · 2025-11-20 14:14:56 -08:00
  856f97f449