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Michael Bolin
593df8773d
## Why
Permission profiles that extend a built-in profile should behave like
other TOML inheritance: parent entries provide defaults, and child keys
override matching fields before the profile is compiled.
That was not true for `:workspace`. Previously, a profile with `extends
= ":workspace"` seeded the compiled runtime
`PermissionProfile::workspace_write()` policy and then appended child
filesystem entries. A child override such as `":tmpdir" = "read"`
therefore left the inherited `":tmpdir" = "write"` entry in the final
policy. Since same-target `write` wins over `read` during runtime
resolution, the child override was ineffective.
This also needs a clear source of truth for the built-in profiles. The
protocol-level sandbox policy constructors now define the raw built-in
filesystem entries, and both `PermissionProfile` presets and
config-profile inheritance derive from those same values.
## What Changed
- Add a canonical `FileSystemSandboxPolicy::read_only()` constructor
while keeping the read-only and workspace-write raw filesystem entries
explicit and independent.
- Derive `PermissionProfile::read_only()` from
`FileSystemSandboxPolicy::read_only()`;
`PermissionProfile::workspace_write()` continues to derive from
`FileSystemSandboxPolicy::workspace_write()`.
- Build extensible `:read-only` and `:workspace` parent profiles by
projecting those canonical sandbox policies into
`PermissionProfileToml`, then merge user overrides at the TOML layer
before compilation.
- Add config parsing support for `:slash_tmp` so the built-in
`:workspace` parent can be expressed in the same TOML-shaped filesystem
table as user profiles.
- Document that `PermissionsToml::resolve_profile()` returns an
already-merged `PermissionProfileToml`, and return that profile directly
after removing the resolved-profile wrapper.
- Extend the config test for `extends = ":workspace"` to assert that
inherited `":slash_tmp" = "write"` is preserved and that a child
`":tmpdir" = "read"` entry replaces the inherited `write` entry.
## Verification
- `just test -p codex-config`
- `just test -p codex-protocol`
- `just test -p codex-core
permissions_profiles_resolve_extends_parent_first_with_child_overrides`
- `just test -p codex-core
default_permissions_profile_can_extend_builtin_workspace`
- `just test -p codex-core`
- Result: 2596 passed, 4 failed, 1 timed out.
- The failures were existing sandbox/environment-sensitive tests
unrelated to this permissions change:
`suite::user_shell_cmd::user_shell_command_does_not_set_network_sandbox_env_var`,
`suite::user_shell_cmd::user_shell_command_history_is_persisted_and_shared_with_model`,
`suite::abort_tasks::interrupt_persists_turn_aborted_marker_in_next_request`,
`suite::abort_tasks::interrupt_tool_records_history_entries`, and
`thread_manager::tests::start_thread_uses_all_default_environments_from_codex_home`.
593df8773d
·
2026-06-02 10:57:35 -07:00
7,065 Commits
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.