Commit Graph

45 Commits

  • Split features into codex-features crate (#15253)
    - Split the feature system into a new `codex-features` crate.
    - Cut `codex-core` and workspace consumers over to the new config and
    warning APIs.
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • fix(subagents) share execpolicy by default (#13702)
    ## Summary
    If a subagent requests approval, and the user persists that approval to
    the execpolicy, it should (by default) propagate. We'll need to rethink
    this a bit in light of coming Permissions changes, though I think this
    is closer to the end state that we'd want, which is that execpolicy
    changes to one permissions profile should be synced across threads.
    
    ## Testing
    - [x] Added integration test
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Stabilize approval matrix write-file command (#14968)
    ## What is flaky
    The approval-matrix `WriteFile` scenario is flaky. It sometimes fails in
    CI even though the approval logic is unchanged, because the test
    delegates the file write and readback to shell parsing instead of
    deterministic file I/O.
    
    ## Why it was flaky
    The test generated a command shaped like `printf ... > file && cat
    file`. That means the scenario depended on shell quoting, redirection,
    newline handling, and encoding behavior in addition to the approval
    system it was actually trying to validate. If the shell interpreted the
    payload differently, the test would report an approval failure even
    though the product logic was fine.
    
    That also made failures hard to diagnose, because the test did not log
    the exact generated command or the parsed result payload.
    
    ## How this PR fixes it
    This PR replaces the shell-redirection path with a deterministic
    `python3 -c` script that writes the file with `Path.write_text(...,
    encoding='utf-8')` and then reads it back with the same UTF-8 path. It
    also logs the generated command and the resulting exit code/stdout for
    the approval scenario so any future failure is directly attributable.
    
    ## Why this fix fixes the flakiness
    The scenario no longer depends on shell parsing and redirection
    semantics. The file contents are produced and read through explicit
    UTF-8 file I/O, so the approval test is measuring approval behavior
    instead of shell behavior. The added diagnostics mean a future failure
    will show the exact command/result pair instead of looking like a
    generic intermittent mismatch.
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • Add diagnostics for read_only_unless_trusted timeout flake (#14518)
    ## Summary
    - add targeted diagnostic logging for the
    read_only_unless_trusted_requires_approval scenarios in
    approval_matrix_covers_all_modes
    - add a scoped timeout buffer only for ro_unless_trusted write-file
    scenarios: 1000ms -> 2000ms
    - keep all other write-file scenarios at 1000ms
    
    ## Why
    The last two main failures were both in codex-core::all
    suite::approvals::approval_matrix_covers_all_modes with exit_code=124 in
    the same scenario. This points to execution-time jitter in CI rather
    than a semantic approval-policy mismatch.
    
    ## Notes
    - This does not introduce any >5s timeout and does not
    disable/quarantine tests.
    - The timeout increase is tightly scoped to the single flaky path and
    keeps the matrix deterministic under CI scheduling variance.
  • fix: follow up on linux sandbox review nits (#14440)
    ## Summary
    - address the follow-up review nits from #13996 in a separate PR
    - make the approvals test command a raw string and keep the
    managed-network path using env proxy routing
    - inline `--apply-seccomp-then-exec` in the Linux sandbox inner command
    builder
    - remove the bubblewrap-specific sandbox metric tag path and drop the
    `use_legacy_landlock` shim from `sandbox_tag`/`TurnMetadataState::new`
    - restore the `Feature` import that `origin/main` currently still needs
    in `connectors.rs`
    
    ## Testing
    - `cargo test -p codex-linux-sandbox`
    - focused `codex-core` tests were rerun/started, but the final
    verification pass was interrupted when I pushed at request
  • refactor: make bubblewrap the default Linux sandbox (#13996)
    ## Summary
    - make bubblewrap the default Linux sandbox and keep
    `use_legacy_landlock` as the only override
    - remove `use_linux_sandbox_bwrap` from feature, config, schema, and
    docs surfaces
    - update Linux sandbox selection, CLI/config plumbing, and related
    tests/docs to match the new default
    - fold in the follow-up CI fixes for request-permissions responses and
    Linux read-only sandbox error text
  • config: add initial support for the new permission profile config language in config.toml (#13434)
    ## Why
    
    `SandboxPolicy` currently mixes together three separate concerns:
    
    - parsing layered config from `config.toml`
    - representing filesystem sandbox state
    - carrying basic network policy alongside filesystem choices
    
    That makes the existing config awkward to extend and blocks the new TOML
    proposal where `[permissions]` becomes a table of named permission
    profiles selected by `default_permissions`. (The idea is that if
    `default_permissions` is not specified, we assume the user is opting
    into the "traditional" way to configure the sandbox.)
    
    This PR adds the config-side plumbing for those profiles while still
    projecting back to the legacy `SandboxPolicy` shape that the current
    macOS and Linux sandbox backends consume.
    
    It also tightens the filesystem profile model so scoped entries only
    exist for `:project_roots`, and so nested keys must stay within a
    project root instead of using `.` or `..` traversal.
    
    This drops support for the short-lived `[permissions.network]` in
    `config.toml` because now that would be interpreted as a profile named
    `network` within `[permissions]`.
    
    ## What Changed
    
    - added `PermissionsToml`, `PermissionProfileToml`,
    `FilesystemPermissionsToml`, and `FilesystemPermissionToml` so config
    can parse named profiles under `[permissions.<profile>.filesystem]`
    - added top-level `default_permissions` selection, validation for
    missing or unknown profiles, and compilation from a named profile into
    split `FileSystemSandboxPolicy` and `NetworkSandboxPolicy` values
    - taught config loading to choose between the legacy `sandbox_mode` path
    and the profile-based path without breaking legacy users
    - introduced `codex-protocol::permissions` for the split filesystem and
    network sandbox types, and stored those alongside the legacy projected
    `sandbox_policy` in runtime `Permissions`
    - modeled `FileSystemSpecialPath` so only `ProjectRoots` can carry a
    nested `subpath`, matching the intended config syntax instead of
    allowing invalid states for other special paths
    - restricted scoped filesystem maps to `:project_roots`, with validation
    that nested entries are non-empty descendant paths and cannot use `.` or
    `..` to escape the project root
    - kept existing runtime consumers working by projecting
    `FileSystemSandboxPolicy` back into `SandboxPolicy`, with an explicit
    error for profiles that request writes outside the workspace root
    - loaded proxy settings from top-level `[network]`
    - regenerated `core/config.schema.json`
    
    ## Verification
    
    - added config coverage for profile deserialization,
    `default_permissions` selection, top-level `[network]` loading, network
    enablement, rejection of writes outside the workspace root, rejection of
    nested entries for non-`:project_roots` special paths, and rejection of
    parent-directory traversal in `:project_roots` maps
    - added protocol coverage for the legacy bridge rejecting non-workspace
    writes
    
    ## Docs
    
    - update the Codex config docs on developers.openai.com/codex to
    document named `[permissions.<profile>]` entries, `default_permissions`,
    scoped `:project_roots` syntax, the descendant-path restriction for
    nested `:project_roots` entries, and top-level `[network]` proxy
    configuration
    
    
    
    
    
    
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/13434).
    * #13453
    * #13452
    * #13451
    * #13449
    * #13448
    * #13445
    * #13440
    * #13439
    * __->__ #13434
  • Clarify sandbox permission override helper semantics (#13703)
    ## Summary
    Today `SandboxPermissions::requires_additional_permissions()` does not
    actually mean "is `WithAdditionalPermissions`". It returns `true` for
    any non-default sandbox override, including `RequireEscalated`. That
    broad behavior is relied on in multiple `main` callsites.
    
    The naming is security-sensitive because `SandboxPermissions` is used on
    shell-like tool calls to tell the executor how a single command should
    relate to the turn sandbox:
    - `UseDefault`: run with the turn sandbox unchanged
    - `RequireEscalated`: request execution outside the sandbox
    - `WithAdditionalPermissions`: stay sandboxed but widen permissions for
    that command only
    
    ## Problem
    The old helper name reads as if it only applies to the
    `WithAdditionalPermissions` variant. In practice it means "this command
    requested any explicit sandbox override."
    
    That ambiguity made it easy to read production checks incorrectly and
    made the guardian change look like a standalone `main` fix when it is
    not.
    
    On `main` today:
    - `shell` and `unified_exec` intentionally reject any explicit
    `sandbox_permissions` request unless approval policy is `OnRequest`
    - `exec_policy` intentionally treats any explicit sandbox override as
    prompt-worthy in restricted sandboxes
    - tests intentionally serialize both `RequireEscalated` and
    `WithAdditionalPermissions` as explicit sandbox override requests
    
    So changing those callsites from the broad helper to a narrow
    `WithAdditionalPermissions` check would be a behavior change, not a pure
    cleanup.
    
    ## What This PR Does
    - documents `SandboxPermissions` as a per-command sandbox override, not
    a generic permissions bag
    - adds `requests_sandbox_override()` for the broad meaning: anything
    except `UseDefault`
    - adds `uses_additional_permissions()` for the narrow meaning: only
    `WithAdditionalPermissions`
    - keeps `requires_additional_permissions()` as a compatibility alias to
    the broad meaning for now
    - updates the current broad callsites to use the accurately named broad
    helper
    - adds unit coverage that locks in the semantics of all three helpers
    
    ## What This PR Does Not Do
    This PR does not change runtime behavior. That is intentional.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • config: enforce enterprise feature requirements (#13388)
    ## Why
    
    Enterprises can already constrain approvals, sandboxing, and web search
    through `requirements.toml` and MDM, but feature flags were still only
    configurable as managed defaults. That meant an enterprise could suggest
    feature values, but it could not actually pin them.
    
    This change closes that gap and makes enterprise feature requirements
    behave like the other constrained settings. The effective feature set
    now stays consistent with enterprise requirements during config load,
    when config writes are validated, and when runtime code mutates feature
    flags later in the session.
    
    It also tightens the runtime API for managed features. `ManagedFeatures`
    now follows the same constraint-oriented shape as `Constrained<T>`
    instead of exposing panic-prone mutation helpers, and production code
    can no longer construct it through an unconstrained `From<Features>`
    path.
    
    The PR also hardens the `compact_resume_fork` integration coverage on
    Windows. After the feature-management changes,
    `compact_resume_after_second_compaction_preserves_history` was
    overflowing the libtest/Tokio thread stacks on Windows, so the test now
    uses an explicit larger-stack harness as a pragmatic mitigation. That
    may not be the ideal root-cause fix, and it merits a parallel
    investigation into whether part of the async future chain should be
    boxed to reduce stack pressure instead.
    
    ## What Changed
    
    Enterprises can now pin feature values in `requirements.toml` with the
    requirements-side `features` table:
    
    ```toml
    [features]
    personality = true
    unified_exec = false
    ```
    
    Only canonical feature keys are allowed in the requirements `features`
    table; omitted keys remain unconstrained.
    
    - Added a requirements-side pinned feature map to
    `ConfigRequirementsToml`, threaded it through source-preserving
    requirements merge and normalization in `codex-config`, and made the
    TOML surface use `[features]` (while still accepting legacy
    `[feature_requirements]` for compatibility).
    - Exposed `featureRequirements` from `configRequirements/read`,
    regenerated the JSON/TypeScript schema artifacts, and updated the
    app-server README.
    - Wrapped the effective feature set in `ManagedFeatures`, backed by
    `ConstrainedWithSource<Features>`, and changed its API to mirror
    `Constrained<T>`: `can_set(...)`, `set(...) -> ConstraintResult<()>`,
    and result-returning `enable` / `disable` / `set_enabled` helpers.
    - Removed the legacy-usage and bulk-map passthroughs from
    `ManagedFeatures`; callers that need those behaviors now mutate a plain
    `Features` value and reapply it through `set(...)`, so the constrained
    wrapper remains the enforcement boundary.
    - Removed the production loophole for constructing unconstrained
    `ManagedFeatures`. Non-test code now creates it through the configured
    feature-loading path, and `impl From<Features> for ManagedFeatures` is
    restricted to `#[cfg(test)]`.
    - Rejected legacy feature aliases in enterprise feature requirements,
    and return a load error when a pinned combination cannot survive
    dependency normalization.
    - Validated config writes against enterprise feature requirements before
    persisting changes, including explicit conflicting writes and
    profile-specific feature states that normalize into invalid
    combinations.
    - Updated runtime and TUI feature-toggle paths to use the constrained
    setter API and to persist or apply the effective post-constraint value
    rather than the requested value.
    - Updated the `core_test_support` Bazel target to include the bundled
    core model-catalog fixtures in its runtime data, so helper code that
    resolves `core/models.json` through runfiles works in remote Bazel test
    environments.
    - Renamed the core config test coverage to emphasize that effective
    feature values are normalized at runtime, while conflicting persisted
    config writes are rejected.
    - Ran `compact_resume_after_second_compaction_preserves_history` inside
    an explicit 8 MiB test thread and Tokio runtime worker stack, following
    the existing larger-stack integration-test pattern, to keep the Windows
    `compact_resume_fork` test slice from aborting while a parallel
    investigation continues into whether some of the underlying async
    futures should be boxed.
    
    ## Verification
    
    - `cargo test -p codex-config`
    - `cargo test -p codex-core feature_requirements_ -- --nocapture`
    - `cargo test -p codex-core
    load_requirements_toml_produces_expected_constraints -- --nocapture`
    - `cargo test -p codex-core
    compact_resume_after_second_compaction_preserves_history -- --nocapture`
    - `cargo test -p codex-core compact_resume_fork -- --nocapture`
    - Re-ran the built `codex-core` `tests/all` binary with
    `RUST_MIN_STACK=262144` for
    `compact_resume_after_second_compaction_preserves_history` to confirm
    the explicit-stack harness fixes the deterministic low-stack repro.
    - `cargo test -p codex-core`
    - This still fails locally in unrelated integration areas that expect
    the `codex` / `test_stdio_server` binaries or hit existing `search_tool`
    wiremock mismatches.
    
    ## Docs
    
    `developers.openai.com/codex` should document the requirements-side
    `[features]` table for enterprise and MDM-managed configuration,
    including that it only accepts canonical feature keys and that
    conflicting config writes are rejected.
  • add fast mode toggle (#13212)
    - add a local Fast mode setting in codex-core (similar to how model id
    is currently stored on disk locally)
    - send `service_tier=priority` on requests when Fast is enabled
    - add `/fast` in the TUI and persist it locally
    - feature flag
  • core: adopt host_executable() rules in zsh-fork (#13046)
    ## Why
    
    [#12964](https://github.com/openai/codex/pull/12964) added
    `host_executable()` support to `codex-execpolicy`, but the zsh-fork
    interception path in `unix_escalation.rs` was still evaluating commands
    with the default exact-token matcher.
    
    That meant an intercepted absolute executable such as `/usr/bin/git
    status` could still miss basename rules like `prefix_rule(pattern =
    ["git", "status"])`, even when the policy also defined a matching
    `host_executable(name = "git", ...)` entry.
    
    This PR adopts the new matching behavior in the zsh-fork runtime only.
    That keeps the rollout intentionally narrow: zsh-fork already requires
    explicit user opt-in, so it is a safer first caller to exercise the new
    `host_executable()` scheme before expanding it to other execpolicy call
    sites.
    
    It also brings zsh-fork back in line with the current `prefix_rule()`
    execution model. Until prefix rules can carry their own permission
    profiles, a matched `prefix_rule()` is expected to rerun the intercepted
    command unsandboxed on `allow`, or after the user accepts `prompt`,
    instead of merely continuing inside the inherited shell sandbox.
    
    ## What Changed
    
    - added `evaluate_intercepted_exec_policy()` in
    `core/src/tools/runtimes/shell/unix_escalation.rs` to centralize
    execpolicy evaluation for intercepted commands
    - switched intercepted direct execs in the zsh-fork path to
    `check_multiple_with_options(...)` with `MatchOptions {
    resolve_host_executables: true }`
    - added `commands_for_intercepted_exec_policy()` so zsh-fork policy
    evaluation works from intercepted `(program, argv)` data instead of
    reconstructing a synthetic command before matching
    - left shell-wrapper parsing intentionally disabled by default behind
    `ENABLE_INTERCEPTED_EXEC_POLICY_SHELL_WRAPPER_PARSING`, so
    path-sensitive matching relies on later direct exec interception rather
    than shell-script parsing
    - made matched `prefix_rule()` decisions rerun intercepted commands with
    `EscalationExecution::Unsandboxed`, while unmatched-command fallback
    keeps the existing sandbox-preserving behavior
    - extracted the zsh-fork test harness into
    `core/tests/common/zsh_fork.rs` so both the skill-focused and
    approval-focused integration suites can exercise the same runtime setup
    - limited this change to the intercepted zsh-fork path rather than
    changing every execpolicy caller at once
    - added runtime coverage in
    `core/src/tools/runtimes/shell/unix_escalation_tests.rs` for allowed and
    disallowed `host_executable()` mappings and the wrapper-parsing modes
    - added integration coverage in `core/tests/suite/approvals.rs` to
    verify a saved `prefix_rule(pattern=["touch"], decision="allow")` reruns
    under zsh-fork outside a restrictive `WorkspaceWrite` sandbox
    
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/13046).
    * #13065
    * __->__ #13046
  • Allow clients not to send summary as an option (#12950)
    Summary is a required parameter on UserTurn. Ideally we'd like the core
    to decide the appropriate summary level.
    
    Make the summary optional and don't send it when not needed.
  • feat(ui): add network approval persistence plumbing (#12358)
    ## Summary
    - add TUI approval options for persistent network host rules
    - add app-server v2 approval payload plumbing for network approval
    context + proposed network policy amendments
    - add app-server handling to translate `applyNetworkPolicyAmendment`
    decisions back into core review decisions
    - update docs/test client output and generated app-server schemas/types
  • feat(core) Introduce Feature::RequestPermissions (#11871)
    ## Summary
    Introduces the initial implementation of Feature::RequestPermissions.
    RequestPermissions allows the model to request that a command be run
    inside the sandbox, with additional permissions, like writing to a
    specific folder. Eventually this will include other rules as well, and
    the ability to persist these permissions, but this PR is already quite
    large - let's get the core flow working and go from there!
    
    <img width="1279" height="541" alt="Screenshot 2026-02-15 at 2 26 22 PM"
    src="https://github.com/user-attachments/assets/0ee3ec0f-02ec-4509-91a2-809ac80be368"
    />
    
    ## Testing
    - [x] Added tests
    - [x] Tested locally
    - [x] Feature
  • feat(core): persist network approvals in execpolicy (#12357)
    ## Summary
    Persist network approval allow/deny decisions as `network_rule(...)`
    entries in execpolicy (not proxy config)
    
    It adds `network_rule` parsing + append support in `codex-execpolicy`,
    including `decision="prompt"` (parse-only; not compiled into proxy
    allow/deny lists)
    - compile execpolicy network rules into proxy allow/deny lists and
    update the live proxy state on approval
    - preserve requirements execpolicy `network_rule(...)` entries when
    merging with file-based execpolicy
    - reject broad wildcard hosts (for example `*`) for persisted
    `network_rule(...)`
  • chore: remove codex-core public protocol/shell re-exports (#12432)
    ## Why
    
    `codex-rs/core/src/lib.rs` re-exported a broad set of types and modules
    from `codex-protocol` and `codex-shell-command`. That made it easy for
    workspace crates to import those APIs through `codex-core`, which in
    turn hides dependency edges and makes it harder to reduce compile-time
    coupling over time.
    
    This change removes those public re-exports so call sites must import
    from the source crates directly. Even when a crate still depends on
    `codex-core` today, this makes dependency boundaries explicit and
    unblocks future work to drop `codex-core` dependencies where possible.
    
    ## What Changed
    
    - Removed public re-exports from `codex-rs/core/src/lib.rs` for:
    - `codex_protocol::protocol` and related protocol/model types (including
    `InitialHistory`)
      - `codex_protocol::config_types` (`protocol_config_types`)
    - `codex_shell_command::{bash, is_dangerous_command, is_safe_command,
    parse_command, powershell}`
    - Migrated workspace Rust call sites to import directly from:
      - `codex_protocol::protocol`
      - `codex_protocol::config_types`
      - `codex_protocol::models`
      - `codex_shell_command`
    - Added explicit `Cargo.toml` dependencies (`codex-protocol` /
    `codex-shell-command`) in crates that now import those crates directly.
    - Kept `codex-core` internal modules compiling by using `pub(crate)`
    aliases in `core/src/lib.rs` (internal-only, not part of the public
    API).
    - Updated the two utility crates that can already drop a `codex-core`
    dependency edge entirely:
      - `codex-utils-approval-presets`
      - `codex-utils-cli`
    
    ## Verification
    
    - `cargo test -p codex-utils-approval-presets`
    - `cargo test -p codex-utils-cli`
    - `cargo check --workspace --all-targets`
    - `just clippy`
  • fix(core) Filter non-matching prefix rules (#12314)
    ## Summary
    `gpt-5.3-codex` really likes to write complicated shell scripts, and
    suggest a partial prefix_rule that wouldn't actually approve the
    command. We should only show the `prefix_rule` suggestion from the model
    if it would actually fully approve the command the user is seeing.
    
    This will technically cause more instances of overly-specific
    suggestions when we fallback, but I think the UX is clearer,
    particularly when the model doesn't necessarily understand the current
    limitations of execpolicy parsing.
    
    ## Testing
     - [x] Add unit tests
     - [x] Add integration tests
  • feat(core): plumb distinct approval ids for command approvals (#12051)
    zsh fork PR stack:
    - https://github.com/openai/codex/pull/12051 👈 
    - https://github.com/openai/codex/pull/12052
    
    With upcoming support for a fork of zsh that allows us to intercept
    `execve` and run execpolicy checks for each subcommand as part of a
    `CommandExecution`, it will be possible for there to be multiple
    approval requests for a shell command like `/path/to/zsh -lc 'git status
    && rg \"TODO\" src && make test'`.
    
    To support that, this PR introduces a new `approval_id` field across
    core, protocol, and app-server so that we can associate approvals
    properly for subcommands.
  • fix(core) exec_policy parsing fixes (#11951)
    ## Summary
    Fixes a few things in our exec_policy handling of prefix_rules:
    1. Correctly match redirects specifically for exec_policy parsing. i.e.
    if you have `prefix_rule(["echo"], decision="allow")` then `echo hello >
    output.txt` should match - this should fix #10321
    2. If there already exists any rule that would match our prefix rule
    (not just a prompt), then drop it, since it won't do anything.
    
    
    ## Testing
    - [x] Updated unit tests, added approvals ScenarioSpecs
  • chore(approvals) More approvals scenarios (#11660)
    ## Summary
    Add some additional tests to approvals flow
    
    ## Testing
    - [x] these are tests
  • feat: introduce Permissions (#11633)
    ## Why
    We currently carry multiple permission-related concepts directly on
    `Config` for shell/unified-exec behavior (`approval_policy`,
    `sandbox_policy`, `network`, `shell_environment_policy`,
    `windows_sandbox_mode`).
    
    Consolidating these into one in-memory struct makes permission handling
    easier to reason about and sets up the next step: supporting named
    permission profiles (`[permissions.PROFILE_NAME]`) without changing
    behavior now.
    
    This change is mostly mechanical: it updates existing callsites to go
    through `config.permissions`, but it does not yet refactor those
    callsites to take a single `Permissions` value in places where multiple
    permission fields are still threaded separately.
    
    This PR intentionally **does not** change the on-disk `config.toml`
    format yet and keeps compatibility with legacy config keys.
    
    ## What Changed
    - Introduced `Permissions` in `core/src/config/mod.rs`.
    - Added `Config::permissions` and moved effective runtime permission
    fields under it:
      - `approval_policy`
      - `sandbox_policy`
      - `network`
      - `shell_environment_policy`
      - `windows_sandbox_mode`
    - Updated config loading/building so these effective values are still
    derived from the same existing config inputs and constraints.
    - Updated Windows sandbox helpers/resolution to read/write via
    `permissions`.
    - Threaded the new field through all permission consumers across core
    runtime, app-server, CLI/exec, TUI, and sandbox summary code.
    - Updated affected tests to reference `config.permissions.*`.
    - Renamed the struct/field from
    `EffectivePermissions`/`effective_permissions` to
    `Permissions`/`permissions` and aligned variable naming accordingly.
    
    ## Verification
    - `just fix -p codex-core -p codex-tui -p codex-cli -p codex-app-server
    -p codex-exec -p codex-utils-sandbox-summary`
    - `cargo build -p codex-core -p codex-tui -p codex-cli -p
    codex-app-server -p codex-exec -p codex-utils-sandbox-summary`
  • feat: make sandbox read access configurable with ReadOnlyAccess (#11387)
    `SandboxPolicy::ReadOnly` previously implied broad read access and could
    not express a narrower read surface.
    This change introduces an explicit read-access model so we can support
    user-configurable read restrictions in follow-up work, while preserving
    current behavior today.
    
    It also ensures unsupported backends fail closed for restricted-read
    policies instead of silently granting broader access than intended.
    
    ## What
    
    - Added `ReadOnlyAccess` in protocol with:
      - `Restricted { include_platform_defaults, readable_roots }`
      - `FullAccess`
    - Updated `SandboxPolicy` to carry read-access configuration:
      - `ReadOnly { access: ReadOnlyAccess }`
      - `WorkspaceWrite { ..., read_only_access: ReadOnlyAccess }`
    - Preserved existing behavior by defaulting current construction paths
    to `ReadOnlyAccess::FullAccess`.
    - Threaded the new fields through sandbox policy consumers and call
    sites across `core`, `tui`, `linux-sandbox`, `windows-sandbox`, and
    related tests.
    - Updated Seatbelt policy generation to honor restricted read roots by
    emitting scoped read rules when full read access is not granted.
    - Added fail-closed behavior on Linux and Windows backends when
    restricted read access is requested but not yet implemented there
    (`UnsupportedOperation`).
    - Regenerated app-server protocol schema and TypeScript artifacts,
    including `ReadOnlyAccess`.
    
    ## Compatibility / rollout
    
    - Runtime behavior remains unchanged by default (`FullAccess`).
    - API/schema changes are in place so future config wiring can enable
    restricted read access without another policy-shape migration.
  • Fix: update parallel tool call exec approval to approve on request id (#11162)
    ### Summary
    
    In parallel tool call, exec command approvals were not approved at
    request level but at a turn level. i.e. when a single request is
    approved, the system currently treats all requests in turn as approved.
    
    ### Before
    
    https://github.com/user-attachments/assets/d50ed129-b3d2-4b2f-97fa-8601eb11f6a8
    
    ### After
    
    https://github.com/user-attachments/assets/36528a43-a4aa-4775-9e12-f13287ef19fc
  • feat(core) RequestRule (#9489)
    ## Summary
    Instead of trying to derive the prefix_rule for a command mechanically,
    let's let the model decide for us.
    
    ## Testing
    - [x] tested locally
  • feat(core) update Personality on turn (#9644)
    ## Summary
    Support updating Personality mid-Thread via UserTurn/OverwriteTurn. This
    is explicitly unused by the clients so far, to simplify PRs - app-server
    and tui implementations will be follow-ups.
    
    ## Testing
    - [x] added integration tests
  • Add text element metadata to types (#9235)
    Initial type tweaking PR to make the diff of
    https://github.com/openai/codex/pull/9116 smaller
    
    This should not change any behavior, just adds some fields to types
  • fix: implement 'Allow this session' for apply_patch approvals (#8451)
    **Summary**
    This PR makes “ApprovalDecision::AcceptForSession / don’t ask again this
    session” actually work for `apply_patch` approvals by caching approvals
    based on absolute file paths in codex-core, properly wiring it through
    app-server v2, and exposing the choice in both TUI and TUI2.
    - This brings `apply_patch` calls to be at feature-parity with general
    shell commands, which also have a "Yes, and don't ask again" option.
    - This also fixes VSCE's "Allow this session" button to actually work.
    
    While we're at it, also split the app-server v2 protocol's
    `ApprovalDecision` enum so execpolicy amendments are only available for
    command execution approvals.
    
    **Key changes**
    - Core: per-session patch approval allowlist keyed by absolute file
    paths
    - Handles multi-file patches and renames/moves by recording both source
    and destination paths for `Update { move_path: Some(...) }`.
    - Extend the `Approvable` trait and `ApplyPatchRuntime` to work with
    multiple keys, because an `apply_patch` tool call can modify multiple
    files. For a request to be auto-approved, we will need to check that all
    file paths have been approved previously.
    - App-server v2: honor AcceptForSession for file changes
    - File-change approval responses now map AcceptForSession to
    ReviewDecision::ApprovedForSession (no longer downgraded to plain
    Approved).
    - Replace `ApprovalDecision` with two enums:
    `CommandExecutionApprovalDecision` and `FileChangeApprovalDecision`
    - TUI / TUI2: expose “don’t ask again for these files this session”
    - Patch approval overlays now include a third option (“Yes, and don’t
    ask again for these files this session (s)”).
        - Snapshot updates for the approval modal.
    
    **Tests added/updated**
    - Core:
    - Integration test that proves ApprovedForSession on a patch skips the
    next patch prompt for the same file
    - App-server:
    - v2 integration test verifying
    FileChangeApprovalDecision::AcceptForSession works properly
    
    **User-visible behavior**
    - When the user approves a patch “for session”, future patches touching
    only those previously approved file(s) will no longer prompt gain during
    that session (both via app-server v2 and TUI/TUI2).
    
    **Manual testing**
    Tested both TUI and TUI2 - see screenshots below.
    
    TUI:
    <img width="1082" height="355" alt="image"
    src="https://github.com/user-attachments/assets/adcf45ad-d428-498d-92fc-1a0a420878d9"
    />
    
    
    TUI2:
    <img width="1089" height="438" alt="image"
    src="https://github.com/user-attachments/assets/dd768b1a-2f5f-4bd6-98fd-e52c1d3abd9e"
    />
  • feat: support allowed_sandbox_modes in requirements.toml (#8298)
    This adds support for `allowed_sandbox_modes` in `requirements.toml` and
    provides legacy support for constraining sandbox modes in
    `managed_config.toml`. This is converted to `Constrained<SandboxPolicy>`
    in `ConfigRequirements` and applied to `Config` such that constraints
    are enforced throughout the harness.
    
    Note that, because `managed_config.toml` is deprecated, we do not add
    support for the new `external-sandbox` variant recently introduced in
    https://github.com/openai/codex/pull/8290. As noted, that variant is not
    supported in `config.toml` today, but can be configured programmatically
    via app server.
  • feat: Constrain values for approval_policy (#7778)
    Constrain `approval_policy` through new `admin_policy` config.
    
    This PR will:
    1. Add a `admin_policy` section to config, with a single field (for now)
    `allowed_approval_policies`. This list constrains the set of
    user-settable `approval_policy`s.
    2. Introduce a new `Constrained<T>` type, which combines a current value
    and a validator function. The validator function ensures disallowed
    values are not set.
    3. Change the type of `approval_policy` on `Config` and
    `SessionConfiguration` from `AskForApproval` to
    `Constrained<AskForApproval>`. The validator function is set by the
    values passed into `allowed_approval_policies`.
    4. `GenericDisplayRow`: add a `disabled_reason: Option<String>`. When
    set, it disables selection of the value and indicates as such in the
    menu. This also makes it unselectable with arrow keys or numbers. This
    is used in the `/approvals` menu.
    
    Follow ups are:
    1. Do the same thing to `sandbox_policy`.
    2. Propagate the allowed set of values through app-server for the
    extension (though already this should prevent app-server from setting
    this values, it's just that we want to disable UI elements that are
    unsettable).
    
    Happy to split this PR up if you prefer, into the logical numbered areas
    above. Especially if there are parts we want to gavel on separately
    (e.g. admin_policy).
    
    Disabled full access:
    <img width="1680" height="380" alt="image"
    src="https://github.com/user-attachments/assets/1fb61c8c-1fcb-4dc4-8355-2293edb52ba0"
    />
    
    Disabled `--yolo` on startup:
    <img width="749" height="76" alt="image"
    src="https://github.com/user-attachments/assets/0a1211a0-6eb1-40d6-a1d7-439c41e94ddb"
    />
    
    CODEX-4087
  • fix: policy/*.codexpolicy -> rules/*.rules (#7888)
    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!
  • refactoring with_escalated_permissions to use SandboxPermissions instead (#7750)
    helpful in the future if we want more granularity for requesting
    escalated permissions:
    e.g when running in readonly sandbox, model can request to escalate to a
    sandbox that allows writes
  • Refactor execpolicy fallback evaluation (#7544)
    ## 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.
  • whitelist command prefix integration in core and tui (#7033)
    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
  • Update defaults to gpt-5.1 (#6652)
    ## Summary
    - update documentation, example configs, and automation defaults to
    reference gpt-5.1 / gpt-5.1-codex
    - bump the CLI and core configuration defaults, model presets, and error
    messaging to the new models while keeping the model-family/tool coverage
    for legacy slugs
    - refresh tests, fixtures, and TUI snapshots so they expect the upgraded
    defaults
    
    ## Testing
    - `cargo test -p codex-core
    config::tests::test_precedence_fixture_with_gpt5_profile`
    
    
    ------
    [Codex
    Task](https://chatgpt.com/codex/tasks/task_i_6916c5b3c2b08321ace04ee38604fc6b)
  • Add unified exec escalation handling and tests (#6492)
    Similar implementation to the shell tool
  • Add ItemStarted/ItemCompleted events for UserInputItem (#5306)
    Adds a new ItemStarted event and delivers UserMessage as the first item
    type (more to come).
    
    
    Renames `InputItem` to `UserInput` considering we're using the `Item`
    suffix for actual items.