## Why The argument-comment lint now has a packaged DotSlash artifact from [#15198](https://github.com/openai/codex/pull/15198), so the normal repo lint path should use that released payload instead of rebuilding the lint from source every time. That keeps `just clippy` and CI aligned with the shipped artifact while preserving a separate source-build path for people actively hacking on the lint crate. The current alpha package also exposed two integration wrinkles that the repo-side prebuilt wrapper needs to smooth over: - the bundled Dylint library filename includes the host triple, for example `@nightly-2025-09-18-aarch64-apple-darwin`, and Dylint derives `RUSTUP_TOOLCHAIN` from that filename - on Windows, Dylint's driver path also expects `RUSTUP_HOME` to be present in the environment Without those adjustments, the prebuilt CI jobs fail during `cargo metadata` or driver setup. This change makes the checked-in prebuilt wrapper normalize the packaged library name to the plain `nightly-2025-09-18` channel before invoking `cargo-dylint`, and it teaches both the wrapper and the packaged runner source to infer `RUSTUP_HOME` from `rustup show home` when the environment does not already provide it. After the prebuilt Windows lint job started running successfully, it also surfaced a handful of existing anonymous literal callsites in `windows-sandbox-rs`. This PR now annotates those callsites so the new cross-platform lint job is green on the current tree. ## What Changed - checked in the current `tools/argument-comment-lint/argument-comment-lint` DotSlash manifest - kept `tools/argument-comment-lint/run.sh` as the source-build wrapper for lint development - added `tools/argument-comment-lint/run-prebuilt-linter.sh` as the normal enforcement path, using the checked-in DotSlash package and bundled `cargo-dylint` - updated `just clippy` and `just argument-comment-lint` to use the prebuilt wrapper - split `.github/workflows/rust-ci.yml` so source-package checks live in a dedicated `argument_comment_lint_package` job, while the released lint runs in an `argument_comment_lint_prebuilt` matrix on Linux, macOS, and Windows - kept the pinned `nightly-2025-09-18` toolchain install in the prebuilt CI matrix, since the prebuilt package still relies on rustup-provided toolchain components - updated `tools/argument-comment-lint/run-prebuilt-linter.sh` to normalize host-qualified nightly library filenames, keep the `rustup` shim directory ahead of direct toolchain `cargo` binaries, and export `RUSTUP_HOME` when needed for Windows Dylint driver setup - updated `tools/argument-comment-lint/src/bin/argument-comment-lint.rs` so future published DotSlash artifacts apply the same nightly-filename normalization and `RUSTUP_HOME` inference internally - fixed the remaining Windows lint violations in `codex-rs/windows-sandbox-rs` by adding the required `/*param*/` comments at the reported callsites - documented the checked-in DotSlash file, wrapper split, archive layout, nightly prerequisite, and Windows `RUSTUP_HOME` requirement in `tools/argument-comment-lint/README.md`
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 supports macOS permission-profile extensions layered on top of
SandboxPolicy:
- no extension profile provided:
keeps legacy default preferences read access (
user-preference-read). - extension profile provided with no
macos_preferencesgrant: does not add preferences access clauses. macos_preferences = "readonly": enables cfprefs read clauses anduser-preference-read.macos_preferences = "readwrite": includes readonly clauses plususer-preference-writeand cfprefs shm write clauses.macos_automation = true: enables broad Apple Events send permissions.macos_automation = ["com.apple.Notes", ...]: enables Apple Events send only to listed bundle IDs.macos_launch_services = true: enables LaunchServices lookups and open/launch operations.macos_accessibility = true: enablescom.apple.axservermach lookup.macos_calendar = true: enablescom.apple.CalendarAgentmach lookup.macos_contacts = "read_only": enables Address Book read access and Contacts read services.macos_contacts = "read_write": includes the readonly Contacts clauses plus Address Book writes and keychain/temp helpers required for writes.
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 /usr/bin/bwrap whenever it is available and
falls back to the vendored bubblewrap path otherwise. When /usr/bin/bwrap is
missing, Codex also surfaces a startup warning through its normal notification
path instead of printing directly from the sandbox helper.
Windows
Legacy SandboxPolicy / sandbox_mode configs are still supported on
Windows.
The elevated setup/runner backend supports legacy ReadOnlyAccess::Restricted
for read-only and workspace-write policies. Restricted read access honors
explicit readable roots plus the command cwd, and keeps writable roots
readable when workspace-write is used.
When include_platform_defaults = true, the elevated Windows backend adds
backend-managed system read roots required for basic execution, such as
C:\Windows, C:\Program Files, C:\Program Files (x86), and
C:\ProgramData. When it is false, those extra system roots are omitted.
The unelevated restricted-token backend still supports the legacy full-read Windows model only. Restricted read-only policies continue to fail closed there instead of running with weaker read enforcement.
New [permissions] / split filesystem policies remain supported on Windows
only when they round-trip through the legacy SandboxPolicy model without
changing semantics. Richer split-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.