We decided that `*.rules` is a more fitting (and concise) file extension
than `*.codexpolicy`, so we are changing the file extension for the
"execpolicy" effort. We are also changing the subfolder of `$CODEX_HOME`
from `policy` to `rules` to match.
This PR updates the in-repo docs and we will update the public docs once
the next CLI release goes out.
Locally, I created `~/.codex/rules/default.rules` with the following
contents:
```
prefix_rule(pattern=["gh", "pr", "view"])
```
And then I asked Codex to run:
```
gh pr view 7888 --json title,body,comments
```
and it was able to!
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"
/>
Issue #7661 revealed that users are confused by deprecation warnings
like:
> `tools.web_search` is deprecated. Use `web_search_request` instead.
This message misleadingly suggests renaming the config key from
`web_search` to `web_search_request`, when the actual required change is
to **move and rename the configuration from the `[tools]` section to the
`[features]` section**.
This PR clarifies the warning messages and documentation to make it
clear that deprecated `[tools]` configurations should be moved to
`[features]`. Changes made:
- Updated deprecation warning format in `codex-rs/core/src/codex.rs:520`
to include `[features].` prefix
- Updated corresponding test expectations in
`codex-rs/core/tests/suite/deprecation_notice.rs:39`
- Improved documentation in `docs/config.md` to clarify upfront that
`[tools]` options are deprecated in favor of `[features]`
…alid (#7668)
The `otel` exporter example in `docs/config.md` is misleading and will
cause
the configuration parser to fail if copied verbatim.
Summary
-------
The example uses a TOML inline table but spreads the inline-table braces
across multiple lines. TOML inline tables must be contained on a single
line
(`key = { a = 1, b = 2 }`); placing newlines inside the braces triggers
a
parse error in most TOML parsers and prevents Codex from starting.
Reproduction
------------
1. Paste the snippet below into `~/.codex/config.toml` (or your project
config).
2. Run `codex` (or the command that loads the config).
3. The process will fail to start with a TOML parse error similar to:
```text
Error loading config.toml: TOML parse error at line 55, column 27
|
55 | exporter = { otlp-http = {
| ^
newlines are unsupported in inline tables, expected nothing
```
Problematic snippet (as currently shown in the docs)
---------------------------------------------------
```toml
[otel]
exporter = { otlp-http = {
endpoint = "https://otel.example.com/v1/logs",
protocol = "binary",
headers = { "x-otlp-api-key" = "${OTLP_TOKEN}" }
}}
```
Recommended fixes
------------------
```toml
[otel.exporter."otlp-http"]
endpoint = "https://otel.example.com/v1/logs"
protocol = "binary"
[otel.exporter."otlp-http".headers]
"x-otlp-api-key" = "${OTLP_TOKEN}"
```
Or, keep an inline table but write it on one line (valid but less
readable):
```toml
[otel]
exporter = { "otlp-http" = { endpoint = "https://otel.example.com/v1/logs", protocol = "binary", headers = { "x-otlp-api-key" = "${OTLP_TOKEN}" } } }
```
Update install and contributing guides to use the root justfile helpers
(`just fmt`, `just fix -p <crate>`, and targeted tests) instead of the
older cargo fmt/clippy/test instructions that have been in place since
459363e17b. This matches the justfile relocation to the repo root in
952d6c946 and the current lint/test workflow for CI (see
`.github/workflows/rust-ci.yml`).
## Refactor of the `execpolicy` crate
To illustrate why we need this refactor, consider an agent attempting to
run `apple | rm -rf ./`. Suppose `apple` is allowed by `execpolicy`.
Before this PR, `execpolicy` would consider `apple` and `pear` and only
render one rule match: `Allow`. We would skip any heuristics checks on
`rm -rf ./` and immediately approve `apple | rm -rf ./` to run.
To fix this, we now thread a `fallback` evaluation function into
`execpolicy` that runs when no `execpolicy` rules match a given command.
In our example, we would run `fallback` on `rm -rf ./` and prevent
`apple | rm -rf ./` from being run without approval.
this PR enables TUI to approve commands and add their prefixes to an
allowlist:
<img width="708" height="605" alt="Screenshot 2025-11-21 at 4 18 07 PM"
src="https://github.com/user-attachments/assets/56a19893-4553-4770-a881-becf79eeda32"
/>
note: we only show the option to whitelist the command when
1) command is not multi-part (e.g `git add -A && git commit -m 'hello
world'`)
2) command is not already matched by an existing rule
This PR honors the `history.max_bytes` configuration parameter by
trimming `history.jsonl` whenever it grows past the configured limit.
While appending new entries we retain the newest record, drop the oldest
lines to stay within the byte budget, and serialize the compacted file
back to disk under the same lock to keep writers safe.
This change prototypes support for Skills with the CLI. This is an
**experimental** feature for internal testing.
---------
Co-authored-by: Gav Verma <[email protected]>
## Summary
Adds the missing `xhigh` reasoning level everywhere it should have been
documented, and makes clear it only works with `gpt-5.1-codex-max`.
## Changes
* `docs/config.md`
* Add `xhigh` to the official list of reasoning levels with a note that
`xhigh` is exclusive to Codex Max.
* `docs/example-config.md`
* Update the example comment adding `xhigh` as a valid option but only
for Codex Max.
* `docs/faq.md`
* Update the model recommendation to `GPT-5.1 Codex Max`.
* Mention that users can choose `high` or the newly documented `xhigh`
level when using Codex Max.
This PR is a modified version of [a
PR](https://github.com/openai/codex/pull/7316) submitted by @yydrowz3.
* Removes a redundant `experimental_sandbox_command_assessment` flag
* Moves `mcp_oauth_credentials_store` from the `[features]` table, where
it doesn't belong
This PR is a documentation only one which:
- addresses the #7231 by adding a paragraph in `docs/getting-started.md`
in the tips category to encourage users to load everything needed in
their environment
- corrects link referencing in `docs/platform-sandboxing.md` so that the
page link opens at the right section
- removes the explicit heading IDs like {#my-id} in `docs/advanced.md`
which are not supported by GitHub and are **not** rendered in the UI:
<img width="1198" height="849" alt="Screenshot 2025-11-26 at 16 25 31"
src="https://github.com/user-attachments/assets/308d33c3-81d3-4785-a6c1-e9377e6d3ea6"
/>
This caused the following links in `README.md` to not work in `main` but
to work in this branch (you can test by going to
https://github.com/openai/codex/blob/docs/getting-started-enhancement/README.md)
- the MCP link goes straight to the correct section now:
```markdown
- [**Advanced**](./docs/advanced.md)
- [Tracing / verbose logging](./docs/advanced.md#tracing--verbose-logging)
- [Model Context Protocol (MCP)](./docs/advanced.md#model-context-protocol-mcp)
```
---------
Signed-off-by: lionel-oai <[email protected]>
Signed-off-by: lionelchg <[email protected]>
Co-authored-by: lionelchg <[email protected]>
James Peter