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667 Commits

  • Filter Windows sandbox roots from SSH config dependencies (#18493)
    ## Stack
    
    1. Base PR: #18443 stops granting ACLs on `USERPROFILE`.
    2. This PR: filters additional SSH-owned profile roots discovered from
    SSH config.
    
    ## Bug
    
    The base PR removes the broadest bad grant: `USERPROFILE` itself.
    
    That still leaves one important case. A user profile child can be
    SSH-owned even when its name is not one of our fixed exclusions.
    
    For example:
    
    ```sshconfig
    Host devbox
      IdentityFile ~/.keys/devbox
      CertificateFile ~/.certs/devbox-cert.pub
      UserKnownHostsFile ~/.known_hosts_custom
      Include ~/.ssh/conf.d/*.conf
    ```
    
    After profile expansion, the sandbox might see these as normal profile
    children:
    
    ```text
    C:\Users\me\.keys
    C:\Users\me\.certs
    C:\Users\me\.known_hosts_custom
    C:\Users\me\.ssh
    ```
    
    Those paths have another owner: OpenSSH and the tools that manage SSH
    identity and host-key state. Codex should not add sandbox ACLs to them.
    
    OpenSSH describes this dependency tree in
    [`ssh_config(5)`](https://man.openbsd.org/ssh_config.5), and the client
    parser follows the same shape in `readconf.c`:
    
    - `Include` recursively reads more config files and expands globs
    - `IdentityFile` and `CertificateFile` name authentication files
    - `UserKnownHostsFile`, `GlobalKnownHostsFile`, and `RevokedHostKeys`
    name host-key files
    - `ControlPath` and `IdentityAgent` can name profile-owned sockets or
    control files
    - these path directives can use forms such as `~`, `%d`, and `${HOME}`
    
    ## Change
    
    This PR adds a small SSH config dependency scanner.
    
    It starts at:
    
    ```text
    ~/.ssh/config
    ```
    
    Then it returns concrete paths named by `Include` and by path-valued SSH
    config directives:
    
    ```text
    IdentityFile
    CertificateFile
    UserKnownHostsFile
    GlobalKnownHostsFile
    RevokedHostKeys
    ControlPath
    IdentityAgent
    ```
    
    For example:
    
    ```sshconfig
    IdentityFile ~/.keys/devbox
    CertificateFile ~/.certs/devbox-cert.pub
    Include ~/.ssh/conf.d/*.conf
    ```
    
    returns paths like:
    
    ```text
    C:\Users\me\.keys\devbox
    C:\Users\me\.certs\devbox-cert.pub
    C:\Users\me\.ssh\conf.d\devbox.conf
    ```
    
    The setup code then maps those paths back to their top-level
    `USERPROFILE` child and filters matching sandbox roots out of both the
    writable and readable root lists.
    
    ## Why this shape
    
    The parser reports what SSH config references. The sandbox setup code
    decides which `USERPROFILE` roots are unsafe to grant.
    
    That keeps the policy simple:
    
    1. expand broad profile grants
    2. remove the profile root
    3. remove fixed sensitive profile folders
    4. remove profile folders referenced by SSH config dependencies
    
    If a path has two possible owners, the sandbox steps back. SSH keeps
    control of SSH config, keys, certificates, known-hosts files, sockets,
    and included config files.
    
    ## Tests
    
    - `cargo test -p codex-windows-sandbox --lib`
    - `just bazel-lock-check`
    - `just fix -p codex-windows-sandbox`
    - `git diff --check`
  • [5/6] Wire executor-backed MCP stdio (#18212)
    ## Summary
    - Add the executor-backed RMCP stdio transport.
    - Wire MCP stdio placement through the executor environment config.
    - Cover local and executor-backed stdio paths with the existing MCP test
    helpers.
    
    ## Stack
    ```text
    o  #18027 [6/6] Fail exec client operations after disconnect
    │
    @  #18212 [5/6] Wire executor-backed MCP stdio
    │
    o  #18087 [4/6] Abstract MCP stdio server launching
    │
    o  #18020 [3/6] Add pushed exec process events
    │
    o  #18086 [2/6] Support piped stdin in exec process API
    │
    o  #18085 [1/6] Add MCP server environment config
    │
    o  main
    ```
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat: Budget skill metadata and surface trimming as a warning (#18298)
    Cap the model-visible skills section to a small share of the context
    window, with a fallback character budget, and keep only as many implicit
    skills as fit within that budget.
    
    Emit a non-fatal warning when enabled skills are omitted, and add a new
    app-server warning notification
    
    Record thread-start skill metrics for total enabled skills, kept skills,
    and whether truncation happened
    
    ---------
    
    Co-authored-by: Matthew Zeng <mzeng@openai.com>
    Co-authored-by: Codex <noreply@openai.com>
  • refactor: use cloneable async channels for shared receivers (#18398)
    This is the first mechanical cleanup in a stack whose higher-level goal
    is to enable Clippy coverage for async guards held across `.await`
    points.
    
    The follow-up commits enable Clippy's
    [`await_holding_lock`](https://rust-lang.github.io/rust-clippy/master/index.html#await_holding_lock)
    lint and the configurable
    [`await_holding_invalid_type`](https://rust-lang.github.io/rust-clippy/master/index.html#await_holding_invalid_type)
    lint for Tokio guard types. This PR handles the cases where the
    underlying issue is not protected shared mutable state, but a
    `tokio::sync::mpsc::UnboundedReceiver` wrapped in `Arc<Mutex<_>>` so
    cloned owners can call `recv().await`.
    
    Using a mutex for that shape forces the receiver lock guard to live
    across `.await`. Switching these paths to `async-channel` gives us
    cloneable `Receiver`s, so each owner can hold a receiver handle directly
    and await messages without an async mutex guard.
    
    ## What changed
    
    - In `codex-rs/code-mode`, replace the turn-message
    `mpsc::UnboundedSender`/`UnboundedReceiver` plus `Arc<Mutex<Receiver>>`
    with `async_channel::Sender`/`Receiver`.
    - In `codex-rs/codex-api`, replace the realtime websocket event receiver
    with an `async_channel::Receiver`, allowing `RealtimeWebsocketEvents`
    clones to receive without locking.
    - Add `async-channel` as a dependency for `codex-code-mode` and
    `codex-api`, and update `Cargo.lock`.
    
    ## Verification
    
    - The split stack was verified at the final lint-enabling head with
    `just clippy`.
  • feat: add opt-in provider runtime abstraction (#17713)
    ## Summary
    
    - Add `codex-model-provider` as the runtime home for model-provider
    behavior that does not belong in `codex-core`, `codex-login`, or
    `codex-api`.
    - The new crate wraps configured `ModelProviderInfo` in a
    `ModelProvider` trait object that can resolve the API provider config,
    provider-scoped auth manager, and request auth provider for each call.
    - This centralizes provider auth behavior in one place today, and gives
    us an extension point for future provider-specific auth, model listing,
    request setup, and related runtime behavior.
    
    ## Tests
    Ran tests manually to make sure that provider auth under different
    configs still work as expected.
    
    ---------
    
    Co-authored-by: pakrym-oai <pakrym@openai.com>
  • Refactor config loading to use filesystem abstraction (#18209)
    Initial pass propagating FileSystem through config loading.
  • feat(sandbox): add glob deny-read platform enforcement (#18096)
    ## Summary
    - adds macOS Seatbelt deny rules for unreadable glob patterns
    - expands unreadable glob matches on Linux and masks them in bwrap,
    including canonical symlink targets
    - keeps Linux glob expansion robust when `rg` is unavailable in minimal
    or Bazel test environments
    - adds sandbox integration coverage that runs `shell` and `exec_command`
    with a `**/*.env = none` policy and verifies the secret contents do not
    reach the model
    
    ## Linux glob expansion
    
    ```text
    Prefer:   rg --files --hidden --no-ignore --glob <pattern> -- <search-root>
    Fallback: internal globset walker when rg is not installed
    Failure:  any other rg failure aborts sandbox construction
    ```
    
    ```
    [permissions.workspace.filesystem]
    glob_scan_max_depth = 2
    
    [permissions.workspace.filesystem.":project_roots"]
    "**/*.env" = "none"
    ```
    
    
    This keeps the common path fast without making sandbox construction
    depend on an ambient `rg` binary. If `rg` is present but fails for
    another reason, the sandbox setup fails closed instead of silently
    omitting deny-read masks.
    
    ## Platform support
    - macOS: subprocess sandbox enforcement is handled by Seatbelt regex
    deny rules
    - Linux: subprocess sandbox enforcement is handled by expanding existing
    glob matches and masking them in bwrap
    - Windows: policy/config/direct-tool glob support is already on `main`
    from #15979; Windows subprocess sandbox paths continue to fail closed
    when unreadable split filesystem carveouts require runtime enforcement,
    rather than silently running unsandboxed
    
    ## Stack
    1. #15979 - merged: cross-platform glob deny-read
    policy/config/direct-tool support for macOS, Linux, and Windows
    2. This PR - macOS/Linux subprocess sandbox enforcement plus Windows
    fail-closed clarification
    3. #17740 - managed deny-read requirements
    
    ## Verification
    - Added integration coverage for `shell` and `exec_command` glob
    deny-read enforcement
    - `cargo check -p codex-sandboxing -p codex-linux-sandbox --tests`
    - `cargo check -p codex-core --test all`
    - `cargo clippy -p codex-linux-sandbox -p codex-sandboxing --tests`
    - `just bazel-lock-check`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Register agent tasks behind use_agent_identity (#17387)
    ## Summary
    
    Stack PR3 for feature-gated agent identity support.
    
    This PR adds per-thread agent task registration behind
    `features.use_agent_identity`. Tasks are minted on the first real user
    turn and cached in thread runtime state for later turns.
    
    ## Stack
    
    - PR1: https://github.com/openai/codex/pull/17385 - add
    `features.use_agent_identity`
    - PR2: https://github.com/openai/codex/pull/17386 - register agent
    identities when enabled
    - PR3: https://github.com/openai/codex/pull/17387 - this PR, original
    task registration slice
    - PR3.1: https://github.com/openai/codex/pull/17978 - persist and
    prewarm registered tasks per thread
    - PR4: https://github.com/openai/codex/pull/17980 - use `AgentAssertion`
    downstream when enabled
    
    ## Validation
    
    Covered as part of the local stack validation pass:
    
    - `just fmt`
    - `cargo test -p codex-core --lib agent_identity`
    - `cargo test -p codex-core --lib agent_assertion`
    - `cargo test -p codex-core --lib websocket_agent_task`
    - `cargo test -p codex-api api_bridge`
    - `cargo build -p codex-cli --bin codex`
    
    ## Notes
    
    The full local app-server E2E path is still being debugged after PR
    creation. The current branch stack is directionally ready for review
    while that follow-up continues.
  • Auto-upgrade configured marketplaces (#17425)
    ## Summary
    - Add best-effort auto-upgrade for user-configured Git marketplaces
    recorded in `config.toml`.
    - Track the last activated Git revision with `last_revision` so
    unchanged marketplace sources skip clone work.
    - Trigger the upgrade from plugin startup and `plugin/list`, while
    preserving existing fail-open plugin behavior with warning logs rather
    than new user-visible errors.
    
    ## Details
    - Remote configured marketplaces use `git ls-remote` to compare the
    source/ref against the recorded revision.
    - Upgrades clone into a staging directory, validate that
    `.agents/plugins/marketplace.json` exists and that the manifest name
    matches the configured marketplace key, then atomically activate the new
    root.
    - Local `.agents/plugins/marketplace.json` marketplaces remain live
    filesystem state and are not auto-pulled.
    - Existing non-curated plugin cache refresh is kicked after successful
    marketplace root upgrades.
    
    ## Validation
    - `just write-config-schema`
    - `cargo test -p codex-core marketplace_upgrade`
    - `cargo check -p codex-cli -p codex-app-server`
    - `just fix -p codex-core`
    
    Did not run the complete `cargo test` suite because the repo
    instructions require asking before a full core workspace run.
  • feat(permissions): add glob deny-read policy support (#15979)
    ## Summary
    - adds first-class filesystem policy entries for deny-read glob patterns
    - parses config such as :project_roots { "**/*.env" = "none" } into
    pattern entries
    - enforces deny-read patterns in direct read/list helpers
    - fails closed for sandbox execution until platform backends enforce
    glob patterns in #18096
    - preserves split filesystem policy in turn context only when it cannot
    be reconstructed from legacy sandbox policy
    
    ## Stack
    1. This PR - glob deny-read policy/config/direct-tool support
    2. #18096 - macOS and Linux sandbox enforcement
    3. #17740 - managed deny-read requirements
    
    ## Verification
    - just fmt
    - cargo check -p codex-core -p codex-sandboxing --tests
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Add remote thread store implementation (#17826)
    - Add a "remote" thread store implementation
    - Implement the remote thread store as a thin wrapper that makes grpc
    calls to a configurable service endpoint
    - Implement only the thread/list method to start
    - Encode the grpc method/param shape as protobufs in the remote
    implementation
    
    A wart: the proto generation script is an "example" binary target. This
    is an example target only because Cargo lets examples use
    dev-dependencies, which keeps tonic-prost-build out of the normal
    codex-thread-store dependency surface. A regular bin would either need
    to add proto generation deps as normal runtime deps, or use a
    feature-gated optional dep, which this repo’s manifest checks explicitly
    reject.
  • Extract plugin loading and marketplace logic into codex-core-plugins (#18070)
    Split plugin loading, marketplace, and related infrastructure out of
    core into codex-core-plugins, while keeping the core-facing
    configuration and orchestration flow in codex-core.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Significantly improve standalone installer (#17022)
    ## Summary
    
    This PR significantly improves the standalone installer experience.
    
    The main changes are:
    
    1. We now install the codex binary and other dependencies in a
    subdirectory under CODEX_HOME.
    (`CODEX_HOME/packages/standalone/releases/...`)
    
    2. We replace the `codex.js` launcher that npm/bun rely on with logic in
    the Rust binary that automatically resolves its dependencies (like
    ripgrep)
    
    ## Motivation
    
    A few design constraints pushed this work.
    
    1. Currently, the entrypoint to codex is through `codex.js`, which
    forces a node dependency to kick off our rust app. We want to move away
    from this so that the entrypoint to codex does not rely on node or
    external package managers.
    2. Right now, the native script adds codex and its dependencies directly
    to user PATH. Given that codex is likely to add more binary dependencies
    than ripgrep, we want a solution which does not add arbitrary binaries
    to user PATH -- the only one we want to add is the `codex` command
    itself.
    3. We want upgrades to be atomic. We do not want scenarios where
    interrupting an upgrade command can move codex into undefined state (for
    example, having a new codex binary but an old ripgrep binary). This was
    ~possible with the old script.
    4. Currently, the Rust binary uses heuristics to determine which
    installer created it. These heuristics are flaky and are tied to the
    `codex.js` launcher. We need a more stable/deterministic way to
    determine how the binary was installed for standalone.
    5. We do not want conflicting codex installations on PATH. For example,
    the user installing via npm, then installing via brew, then installing
    via standalone would make it unclear which version of codex is being
    launched and make it tough for us to determine the right upgrade
    command.
    
    ## Design
    
    ### Standalone package layout
    
    Standalone installs now live under `CODEX_HOME/packages/standalone`:
    
    ```text
    $CODEX_HOME/
      packages/
        standalone/
          current -> releases/0.111.0-x86_64-unknown-linux-musl
          releases/
            0.111.0-x86_64-unknown-linux-musl/
              codex
              codex-resources/
                rg
    ```
    
    where `standalone/current` is a symlink to a release directory.
    
    On Windows, the release directory has the same shape, with `.exe` names
    and Windows helpers in `codex-resources`:
    
    ```text
    %CODEX_HOME%\
      packages\
        standalone\
          current -> releases\0.111.0-x86_64-pc-windows-msvc
          releases\
            0.111.0-x86_64-pc-windows-msvc\
              codex.exe
              codex-resources\
                rg.exe
                codex-command-runner.exe
                codex-windows-sandbox-setup.exe
    ```
    
    This gives us:
    - atomic upgrades because we can fully stage a release before switching
    `standalone/current`
    - a stable way for the binary to recognize a standalone install from its
    canonical `current_exe()` path under CODEX_HOME
    - a clean place for binary dependencies like `rg`, Windows sandbox
    helpers, and, in the future, our custom `zsh` etc
    
    ### Command location
    
    On Unix, we add a symlink at `~/.local/bin/codex` which points directly
    to the `$CODEX_HOME/packages/standalone/current/codex` binary. This
    becomes the main entrypoint for the CLI.
    
    On Windows, we store the link at
    `%LOCALAPPDATA%\Programs\OpenAI\Codex\bin`.
    
    ### PATH persistence
    
    This is a tricky part of the PR, as there's no ~super reliable way to
    ensure that we end up on PATH without significant tradeoffs.
    
    Most Unix variants will have `~/.local/bin` on PATH already, which means
    we *should* be fine simply registering the command there in most cases.
    However, there are cases where this is not the case. In these cases, we
    directly edit the profile depending on the shell we're in.
    
    - macOS zsh: `~/.zprofile`
    - macOS bash: `~/.bash_profile`
    - Linux zsh: `~/.zshrc`
    - Linux bash: `~/.bashrc`
    - fallback: `~/.profile`
    
    On Windows, we update the User `Path` environment variable directly and
    we don't need to worry about shell profiles.
    
    ### Standalone runtime detection
    
    This PR adds a new shared crate, `codex-install-context`, which computes
    install ownership once per process and caches it in a `OnceLock`.
    
    That context includes:
    - install manager (`Standalone`, `Npm`, `Bun`, `Brew`, `Other`)
    - the managed standalone release directory, when applicable
    - the managed standalone `codex-resources` directory, when present
    - the resolved `rg_command`
    
    The standalone path is detected by canonicalizing `current_exe()`,
    canonicalizing CODEX_HOME via `find_codex_home()`, and checking whether
    the binary is running from under
    `$CODEX_HOME/packages/standalone/releases`.
    
    We intentionally do not use a release metadata file. The binary path is
    the source of truth.
    
    ### Dependency resolution
    
    For standalone installs, `grep_files` now resolves bundled `rg` from
    `codex-resources` next to the Codex binary.
    
    For npm/bun/brew/other installs, `grep_files` falls back to resolving
    `rg` from PATH.
    
    For Windows standalone installs, Windows sandbox helpers are still found
    as direct siblings when present. If they are not direct siblings, the
    lookup also checks the sibling `codex-resources` directory.
    
    ### TUI update path
    
    The TUI now has `UpdateAction::StandaloneUnix` and
    `UpdateAction::StandaloneWindows`, which rerun the standalone install
    commands.
    
    Unix update command:
    
    ```sh
    sh -c "curl -fsSL https://chatgpt.com/codex/install.sh | sh"
    ```
    
    Windows update command:
    
    ```powershell
    powershell -c "irm https://chatgpt.com/codex/install.ps1|iex"
    ```
    
    The Windows updater runs PowerShell directly. We do this because `cmd
    /C` would parse the `|iex` as a cmd pipeline instead of passing it to
    PowerShell.
    
    ## Additional installer behavior
    
    - standalone installs now warn about conflicting npm/bun/brew-managed
    `codex` installs and offer to uninstall them
    - same-version reruns do not redownload the release if it is already
    staged locally
    
    ## Testing
    
    Installer smoke tests run:
    - macOS: fresh install into isolated `HOME` and `CODEX_HOME` with
    `scripts/install/install.sh --release latest`
    - macOS: reran the installer against the same isolated install to verify
    the same-version/update path and PATH block idempotence
    - macOS: verified the installed `codex --version` and bundled
    `codex-resources/rg --version`
    - Windows: parsed `scripts/install/install.ps1` with PowerShell via
    `[scriptblock]::Create(...)`
    - Windows: verified the standalone update action builds a direct
    PowerShell command and does not route the `irm ...|iex` command through
    `cmd /C`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Add local thread store listing (#17824)
    Builds on top of #17659 
    
    Move the filesystem + sqlite thread listing-related operations inside of
    a local ThreadStore implementation and call ThreadStore from the places
    that used to perform these filesystem/sqlite operations.
    
    This is the first of a series of PRs that will implement the rest of the
    local ThreadStore.
    
    Testing:
    - added unit tests for the thread store implementation
    - adjusted some unit tests in the realtime + personality packages whose
    callsites changed. Specifically I'm trying to hide ThreadMetadata inside
    of the local implementation and make ThreadMetadata a sqlite
    implementation detail concern rather than a public interface, preferring
    the more generate StoredThread interface instead
    - added a corner case test for the personality migration package that
    wasn't covered by the existing test suite
    - adjust the behavior of searched thread listing to run the existing
    local rollout repair/backfill pass _before_ querying SQLite results, so
    callers using ThreadStore::list_threads do not miss matches after a
    partial metadata warm-up
  • Register agent identities behind use_agent_identity (#17386)
    ## Summary
    
    Stack PR 2 of 4 for feature-gated agent identity support.
    
    This PR adds agent identity registration behind
    `features.use_agent_identity`. It keeps the app-server protocol
    unchanged and starts registration after ChatGPT auth exists rather than
    requiring a client restart.
    
    ## Stack
    
    - PR1: https://github.com/openai/codex/pull/17385 - add
    `features.use_agent_identity`
    - PR2: https://github.com/openai/codex/pull/17386 - this PR
    - PR3: https://github.com/openai/codex/pull/17387 - register agent tasks
    when enabled
    - PR4: https://github.com/openai/codex/pull/17388 - use `AgentAssertion`
    downstream when enabled
    
    ## Validation
    
    Covered as part of the local stack validation pass:
    
    - `just fmt`
    - `cargo test -p codex-core --lib agent_identity`
    - `cargo test -p codex-core --lib agent_assertion`
    - `cargo test -p codex-core --lib websocket_agent_task`
    - `cargo test -p codex-api api_bridge`
    - `cargo build -p codex-cli --bin codex`
    
    ## Notes
    
    The full local app-server E2E path is still being debugged after PR
    creation. The current branch stack is directionally ready for review
    while that follow-up continues.
  • register all mcp tools with namespace (#17404)
    stacked on #17402.
    
    MCP tools returned by `tool_search` (deferred tools) get registered in
    our `ToolRegistry` with a different format than directly available
    tools. this leads to two different ways of accessing MCP tools from our
    tool catalog, only one of which works for each. fix this by registering
    all MCP tools with the namespace format, since this info is already
    available.
    
    also, direct MCP tools are registered to responsesapi without a
    namespace, while deferred MCP tools have a namespace. this means we can
    receive MCP `FunctionCall`s in both formats from namespaces. fix this by
    always registering MCP tools with namespace, regardless of deferral
    status.
    
    make code mode track `ToolName` provenance of tools so it can map the
    literal JS function name string to the correct `ToolName` for
    invocation, rather than supporting both in core.
    
    this lets us unify to a single canonical `ToolName` representation for
    each MCP tool and force everywhere to use that one, without supporting
    fallbacks.
  • [codex] Fix current main CI blockers (#17917)
    ## Summary
    - Fix marketplace-add local path detection on Windows by using
    `Path::is_absolute()`.
    - Make marketplace-add local-source tests parse/write TOML through the
    same helpers instead of raw string matching.
    - Update `rand` 0.9.x to 0.9.3 and document the remaining audited `rand`
    0.8.5 advisory exception.
    - Refresh `MODULE.bazel.lock` after the Cargo.lock update.
    
    ## Why
    Latest `main` had two independent CI blockers: marketplace-add tests
    were not portable to Windows path/TOML escaping, and cargo-deny still
    reported `RUSTSEC-2026-0097` after the recent rustls-webpki fix.
    
    ## Validation
    - `cargo test -p codex-core marketplace_add -- --nocapture`
    - `cargo deny --all-features check`
    - `just bazel-lock-check`
    - `just fix -p codex-core`
    - `just fmt`
    - `git diff --check`
  • Support Unix socket allowlists in macOS sandbox (#17654)
    ## Changes
    
    Allows sandboxes to restrict overall network access while granting
    access to specific unix sockets on mac.
    
    ## Details
    
    - `codex sandbox macos`: adds a repeatable `--allow-unix-socket` option.
    - `codex-sandboxing`: threads explicit Unix socket roots into the macOS
    Seatbelt profile generation.
    - Preserves restricted network behavior when only Unix socket IPC is
    requested, and preserves full network behavior when full network is
    already enabled.
    
    ## Verification
    
    - `cargo test -p codex-cli -p codex-sandboxing`
    - `cargo build -p codex-cli --bin codex`
    - verified that `codex sandbox macos --allow-unix-socket /tmp/test.sock
    -- test-client` grants access as expected
  • Make skill loading filesystem-aware (#17720)
    Migrates skill loading to support reading repo skills from the remote
    environment.
  • Spread AbsolutePathBuf (#17792)
    Mechanical change to promote absolute paths through code.
  • ThreadStore interface (#17659)
    Introduce a ThreadStore interface for mediating access to the filesystem
    (rollout jsonl files + sqlite db) based thread storage.
    
    In later PRs we'll move the existing fs code behind a "local"
    implementation of this ThreadStore interface.
    
    This PR should be a no-op behaviorally, it only introduces the
    interface.
  • feat: codex sampler (#17784)
    Add a pure sampler using the Codex auth and model config. To be used by
    other binary such as tape recorder
  • [codex] Initialize ICU data for code mode V8 (#17709)
    Link ICU data into code mode, otherwise locale-dependent methods cause a
    panic and a crash.
  • fix: pin inputs (#17471)
    ## Summary
    - Pin Rust git patch dependencies to immutable revisions and make
    cargo-deny reject unknown git and registry sources unless explicitly
    allowlisted.
    - Add checked-in SHA-256 coverage for the current rusty_v8 release
    assets, wire those hashes into Bazel, and verify CI override downloads
    before use.
    - Add rusty_v8 MODULE.bazel update/check tooling plus a Bazel CI guard
    so future V8 bumps cannot drift from the checked-in checksum manifest.
    - Pin release/lint cargo installs and all external GitHub Actions refs
    to immutable inputs.
    
    ## Future V8 bump flow
    Run these after updating the resolved `v8` crate version and checksum
    manifest:
    
    ```bash
    python3 .github/scripts/rusty_v8_bazel.py update-module-bazel
    python3 .github/scripts/rusty_v8_bazel.py check-module-bazel
    ```
    
    The update command rewrites the matching `rusty_v8_<crate_version>`
    `http_file` SHA-256 values in `MODULE.bazel` from
    `third_party/v8/rusty_v8_<crate_version>.sha256`. The check command is
    also wired into Bazel CI to block drift.
    
    ## Notes
    - This intentionally excludes RustSec dependency upgrades and
    bubblewrap-related changes per request.
    - The branch was rebased onto the latest origin/main before opening the
    PR.
    
    ## Validation
    - cargo fetch --locked
    - cargo deny check advisories
    - cargo deny check
    - cargo deny check sources
    - python3 .github/scripts/rusty_v8_bazel.py check-module-bazel
    - python3 .github/scripts/rusty_v8_bazel.py update-module-bazel
    - python3 -m unittest discover -s .github/scripts -p
    'test_rusty_v8_bazel.py'
    - python3 -m py_compile .github/scripts/rusty_v8_bazel.py
    .github/scripts/rusty_v8_module_bazel.py
    .github/scripts/test_rusty_v8_bazel.py
    - repo-wide GitHub Actions `uses:` audit: all external action refs are
    pinned to 40-character SHAs
    - yq eval on touched workflows and local actions
    - git diff --check
    - just bazel-lock-check
    
    ## Hash verification
    - Confirmed `MODULE.bazel` hashes match
    `third_party/v8/rusty_v8_146_4_0.sha256`.
    - Confirmed GitHub release asset digests for denoland/rusty_v8
    `v146.4.0` and openai/codex `rusty-v8-v146.4.0` match the checked-in
    hashes.
    - Streamed and SHA-256 hashed all 10 `MODULE.bazel` rusty_v8 asset URLs
    locally; every downloaded byte stream matched both `MODULE.bazel` and
    the checked-in manifest.
    
    ## Pin verification
    - Confirmed signing-action pins match the peeled commits for their tag
    comments: `sigstore/cosign-installer@v3.7.0`, `azure/login@v2`, and
    `azure/trusted-signing-action@v0`.
    - Pinned the remaining tag-based action refs in Bazel CI/setup:
    `actions/setup-node@v6`, `facebook/install-dotslash@v2`,
    `bazelbuild/setup-bazelisk@v3`, and `actions/cache/restore@v5`.
    - Normalized all `bazelbuild/setup-bazelisk@v3` refs to the peeled
    commit behind the annotated tag.
    - Audited Cargo git dependencies: every manifest git dependency uses
    `rev` only, every `Cargo.lock` git source has `?rev=<sha>#<same-sha>`,
    and `cargo deny check sources` passes with `required-git-spec = "rev"`.
    - Shallow-fetched each distinct git dependency repo at its pinned SHA
    and verified Git reports each object as a commit.
  • Stabilize exec-server filesystem tests in CI (#17671)
    ## Summary\n- add an exec-server package-local test helper binary that
    can run exec-server and fs-helper flows\n- route exec-server filesystem
    tests through that helper instead of cross-crate codex helper
    binaries\n- stop relying on Bazel-only extra binary wiring for these
    tests\n\n## Testing\n- not run (per repo guidance for codex changes)
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Build remote exec env from exec-server policy (#17216)
    ## Summary
    - add an exec-server `envPolicy` field; when present, the server starts
    from its own process env and applies the shell environment policy there
    - keep `env` as the exact environment for local/embedded starts, but
    make it an overlay for remote unified-exec starts
    - move the shell-environment-policy builder into `codex-config` so Core
    and exec-server share the inherit/filter/set/include behavior
    - overlay only runtime/sandbox/network deltas from Core onto the
    exec-server-derived env
    
    ## Why
    Remote unified exec was materializing the shell env inside Core and
    forwarding the whole map to exec-server, so remote processes could
    inherit the orchestrator machine's `HOME`, `PATH`, etc. This keeps the
    base env on the executor while preserving Core-owned runtime additions
    like `CODEX_THREAD_ID`, unified-exec defaults, network proxy env, and
    sandbox marker env.
    
    ## Validation
    - `just fmt`
    - `git diff --check`
    - `cargo test -p codex-exec-server --lib`
    - `cargo test -p codex-core --lib unified_exec::process_manager::tests`
    - `cargo test -p codex-core --lib exec_env::tests`
    - `cargo test -p codex-core --lib exec_env_tests` (compile-only; filter
    matched 0 tests)
    - `cargo test -p codex-config --lib shell_environment` (compile-only;
    filter matched 0 tests)
    - `just bazel-lock-update`
    
    ## Known local validation issue
    - `just bazel-lock-check` is not runnable in this checkout: it invokes
    `./scripts/check-module-bazel-lock.sh`, which is missing.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
    Co-authored-by: pakrym-oai <pakrym@openai.com>
  • Stabilize exec-server process tests (#17605)
    Problem: After #17294 switched exec-server tests to launch the top-level
    `codex exec-server` command, parallel remote exec-process cases can
    flake while waiting for the child server's listen URL or transport
    shutdown.
    
    Solution: Serialize remote exec-server-backed process tests and harden
    the harness so spawned servers are killed on drop and shutdown waits for
    the child process to exit.
  • Run exec-server fs operations through sandbox helper (#17294)
    ## Summary
    - run exec-server filesystem RPCs requiring sandboxing through a
    `codex-fs` arg0 helper over stdin/stdout
    - keep direct local filesystem execution for `DangerFullAccess` and
    external sandbox policies
    - remove the standalone exec-server binary path in favor of top-level
    arg0 dispatch/runtime paths
    - add sandbox escape regression coverage for local and remote filesystem
    paths
    
    ## Validation
    - `just fmt`
    - `git diff --check`
    - remote devbox: `cd codex-rs && bazel test --bes_backend=
    --bes_results_url= //codex-rs/exec-server:all` (6/6 passed)
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • TUI: enforce core boundary (#17399)
    Problem: The TUI still depended on `codex-core` directly in a number of
    places, and we had no enforcement from keeping this problem from getting
    worse.
    
    Solution: Route TUI core access through
    `codex-app-server-client::legacy_core`, add CI enforcement for that
    boundary, and re-export this legacy bridge inside the TUI as
    `crate::legacy_core` so the remaining call sites stay readable. There is
    no functional change in this PR — just changes to import targets.
    
    Over time, we can whittle away at the remaining symbols in this legacy
    namespace with the eventual goal of removing them all. In the meantime,
    this linter rule will prevent us from inadvertently importing new
    symbols from core.
  • fix(permissions): fix symlinked writable roots in sandbox permissions (#15981)
    ## Summary
    - preserve logical symlink paths during permission normalization and
    config cwd handling
    - bind real targets for symlinked readable/writable roots in bwrap and
    remap carveouts and unreadable roots there
    - add regressions for symlinked carveouts and nested symlink escape
    masking
    
    ## Root cause
    Permission normalization canonicalized symlinked writable roots and cwd
    to their real targets too early. That drifted policy checks away from
    the logical paths the sandboxed process can actually address, while
    bwrap still needed the real targets for mounts. The mismatch caused
    shell and apply_patch failures on symlinked writable roots.
    
    ## Impact
    Fixes #15781.
    
    Also fixes #17079:
    - #17079 is the protected symlinked carveout side: bwrap now binds the
    real symlinked writable-root target and remaps carveouts before masking.
    
    Related to #15157:
    - #15157 is the broader permission-check side of this path-identity
    problem. This PR addresses the shared logical-vs-canonical normalization
    issue, but the reported Darwin prompt behavior should be validated
    separately before auto-closing it.
    
    This should also fix #14672, #14694, #14715, and #15725:
    - #14672, #14694, and #14715 are the same Linux
    symlinked-writable-root/bwrap family as #15781.
    - #15725 is the protected symlinked workspace path variant; the PR
    preserves the protected logical path in policy space while bwrap applies
    read-only or unreadable treatment to the resolved target so
    file-vs-directory bind mismatches do not abort sandbox setup.
    
    ## Notes
    - Added Linux-only regressions for symlinked writable ancestors and
    protected symlinked directory targets, including nested symlink escape
    masking without rebinding the escape target writable.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Revert "Option to Notify Workspace Owner When Usage Limit is Reached" (#17391)
    Reverts openai/codex#16969
    
    #sev3-2026-04-10-accountscheckversion-500s-for-openai-workspace-7300
  • feat: move exec-server ownership (#16344)
    This introduces session-scoped ownership for exec-server so ws
    disconnects no longer immediately kill running remote exec processes,
    and it prepares the protocol for reconnect-based resume.
    - add session_id / resume_session_id to the exec-server initialize
    handshake
      - move process ownership under a shared session registry
    - detach sessions on websocket disconnect and expire them after a TTL
    instead of killing processes immediately (we will resume based on this)
    - allow a new connection to resume an existing session and take over
    notifications/ownership
    - I use UUID to make them not predictable as we don't have auth for now
    - make detached-session expiry authoritative at resume time so teardown
    wins at the TTL boundary
    - reject long-poll process/read calls that get resumed out from under an
    older attachment
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Option to Notify Workspace Owner When Usage Limit is Reached (#16969)
    ## Summary
    - Replace the manual `/notify-owner` flow with an inline confirmation
    prompt when a usage-based workspace member hits a credits-depleted
    limit.
    - Fetch the current workspace role from the live ChatGPT
    `accounts/check/v4-2023-04-27` endpoint so owner/member behavior matches
    the desktop and web clients.
    - Keep owner, member, and spend-cap messaging distinct so we only offer
    the owner nudge when the workspace is actually out of credits.
    
    ## What Changed
    - `backend-client`
    - Added a typed fetch for the current account role from
    `accounts/check`.
      - Mapped backend role values into a Rust workspace-role enum.
    - `app-server` and protocol
      - Added `workspaceRole` to `account/read` and `account/updated`.
    - Derived `isWorkspaceOwner` from the live role, with a fallback to the
    cached token claim when the role fetch is unavailable.
    - `tui`
      - Removed the explicit `/notify-owner` slash command.
    - When a member is blocked because the workspace is out of credits, the
    error now prompts:
    - `Your workspace is out of credits. Request more from your workspace
    owner? [y/N]`
      - Choosing `y` sends the existing owner-notification request.
    - Choosing `n`, pressing `Esc`, or accepting the default selection
    dismisses the prompt without sending anything.
    - Selection popups now honor explicit item shortcuts, which is how the
    `y` / `n` interaction is wired.
    
    ## Reviewer Notes
    - The main behavior change is scoped to usage-based workspace members
    whose workspace credits are depleted.
    - Spend-cap reached should not show the owner-notification prompt.
    - Owners and admins should continue to see `/usage` guidance instead of
    the member prompt.
    - The live role fetch is best-effort; if it fails, we fall back to the
    existing token-derived ownership signal.
    
    ## Testing
    - Manual verification
      - Workspace owner does not see the member prompt.
    - Workspace member with depleted credits sees the confirmation prompt
    and can send the nudge with `y`.
    - Workspace member with spend cap reached does not see the
    owner-notification prompt.
    
    ### Workspace member out of usage
    
    https://github.com/user-attachments/assets/341ac396-eff4-4a7f-bf0c-60660becbea1
    
    ### Workspace owner
    <img width="1728" height="1086" alt="Screenshot 2026-04-09 at 11 48
    22 AM"
    src="https://github.com/user-attachments/assets/06262a45-e3fc-4cc4-8326-1cbedad46ed6"
    />
  • Install rustls provider for remote websocket client (#17288)
    Addresses #17283
    
    Problem: `codex --remote wss://...` could panic because
    app-server-client did not install rustls' process-level crypto provider
    before opening TLS websocket connections.
    
    Solution: Add the existing rustls provider utility dependency and
    install it before the remote websocket connect.
  • feat: add Codex Apps sediment file remapping (#15197)
    ## Summary
    - bridge Codex Apps tools that declare `_meta["openai/fileParams"]`
    through the OpenAI file upload flow
    - mask those file params in model-visible tool schemas so the model
    provides absolute local file paths instead of raw file payload objects
    - rewrite those local file path arguments client-side into
    `ProvidedFilePayload`-shaped objects before the normal MCP tool call
    
    ## Details
    - applies to scalar and array file params declared in
    `openai/fileParams`
    - Codex uploads local files directly to the backend and uses the
    uploaded file metadata to build the MCP tool arguments locally
    - this PR is input-only
    
    ## Verification
    - `just fmt`
    - `cargo test -p codex-core mcp_tool_call -- --nocapture`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Move default realtime prompt into core (#17165)
    - Adds a core-owned realtime backend prompt template and preparation
    path.
    - Makes omitted realtime start prompts use the core default, while null
    or empty prompts intentionally send empty instructions.
    - Covers the core realtime path and app-server v2 path with integration
    coverage.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Support remote exec cwd in TUI startup (#17142)
    When running with remote executor the cwd is the remote path. Today we
    check for existence of a local directory on startup and attempt to load
    config from it.
    
    For remote executors don't do that.
  • Add sandbox support to filesystem APIs (#16751)
    ## Summary
    - add optional `sandboxPolicy` support to the app-server filesystem
    request surface
    - thread sandbox-aware filesystem options through app-server and
    exec-server adapters
    - enforce sandboxed read/write access in the filesystem abstraction with
    focused local and remote coverage
    
    ## Validation
    - `cargo test -p codex-app-server-protocol`
    - `cargo test -p codex-exec-server file_system`
    - `cargo test -p codex-app-server suite::v2::fs`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Add WebRTC media transport to realtime TUI (#17058)
    Adds the `[realtime].transport = "webrtc"` TUI media path using a new
    `codex-realtime-webrtc` crate, while leaving app-server as the
    signaling/event source.\n\nLocal checks: fmt, diff-check, dependency
    tree only; test signal should come from CI.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Migrate apply_patch to executor filesystem (#17027)
    - Migrate apply-patch verification and application internals to use the
    async `ExecutorFileSystem` abstraction from `exec-server`.
    - Convert apply-patch `cwd` handling to `AbsolutePathBuf` through the
    verifier/parser/handler boundary.
    
    Doesn't change how the tool itself works.
  • [codex] Make AbsolutePathBuf joins infallible (#16981)
    Having to check for errors every time join is called is painful and
    unnecessary.
  • Make AGENTS.md discovery FS-aware (#15826)
    ## Summary
    - make AGENTS.md discovery and loading fully FS-aware and remove the
    non-FS discover helper
    - migrate remote-aware codex-core tests to use TestEnv workspace setup
    instead of syncing a local workspace copy
    - add AGENTS.md corner-case coverage, including directory fallbacks and
    remote-aware integration coverage
    
    ## Testing
    - cargo test -p codex-core project_doc -- --nocapture
    - cargo test -p codex-core hierarchical_agents -- --nocapture
    - cargo test -p codex-core agents_md -- --nocapture
    - cargo test -p codex-tui status -- --nocapture
    - cargo test -p codex-tui-app-server status -- --nocapture
    - just fix
    - just fmt
    - just bazel-lock-update
    - just bazel-lock-check
    - just argument-comment-lint
    - remote Linux executor tests in progress via scripts/test-remote-env.sh
  • Refactor config types into a separate crate (#16962)
    Move config types into a separate crate because their macros expand into
    a lot of new code.
  • fix(guardian): fix ordering of guardian events (#16462)
    Guardian events were emitted a bit out of order for CommandExecution
    items. This would make it hard for the frontend to render a guardian
    auto-review, which has this payload:
    ```
    pub struct ItemGuardianApprovalReviewStartedNotification {
        pub thread_id: String,
        pub turn_id: String,
        pub target_item_id: String,
        pub review: GuardianApprovalReview,
        // FYI this is no longer a json blob
        pub action: Option<JsonValue>,
    }
    ```
    
    There is a `target_item_id` the auto-approval review is referring to,
    but the actual item had not been emitted yet.
    
    Before this PR:
    - `item/autoApprovalReview/started`
    - `item/autoApprovalReview/completed`, and if approved...
    - `item/started`
    - `item/completed`
    
    After this PR:
    - `item/started`
    - `item/autoApprovalReview/started`
    - `item/autoApprovalReview/completed`
    - `item/completed`
    
    This lines up much better with existing patterns (i.e. human review in
    `Default mode`, where app-server would send a server request to prompt
    for user approval after `item/started`), and makes it easier for clients
    to render what guardian is actually reviewing.
    
    We do this following a similar pattern as `FileChange` (aka apply patch)
    items, where we create a FileChange item and emit `item/started` if we
    see the apply patch approval request, before the actual apply patch call
    runs.
  • (tui): Decode percent-escaped bare local file links (#16810)
    Addresses #16622
    
    Problem: bare local file links in TUI markdown render percent-encoded
    path bytes literally, unlike file:// links.
    
    Solution: decode bare path targets before local-path expansion and add
    regression coverage for spaces and Unicode.
  • [codex] add responses proxy JSON dumps (#16753)
    This makes Responses API proxy request/response dumping first-class by
    adding an optional `--dump-dir` flag that emits paired JSON files with
    shared sequence/timestamp prefixes, captures full request and response
    headers and records parsed JSON bodies.