Enum Feature 

pub enum Feature {
    ShellTool,
    CodexHooks,
    SecretAuthStorage,
    CodeMode,
    CodeModeBufferedExec,
    CodeModeHost,
    CodeModeOnly,
    UnifiedExec,
    ShellZshFork,
    UnifiedExecZshFork,
    TerminalResizeReflow,
    TerminalVisualizationInstructions,
    ApplyPatchStreamingEvents,
    ExecPermissionApprovals,
    RequestPermissionsTool,
    WebSearchRequest,
    WebSearchCached,
    StandaloneWebSearch,
    UseLegacyLandlock,
    ShellSnapshot,
    DeferredExecutor,
    RuntimeMetrics,
    MemoryTool,
    ExternalAgentMemoryImport,
    LocalThreadStoreCompression,
    Chronicle,
    EnableRequestCompression,
    NetworkProxy,
    RespectSystemProxy,
    Collab,
    MultiAgentV2,
    MultiAgentMode,
    SpawnCsv,
    Apps,
    EnableMcpApps,
    AppsMcpPathOverride,
    ToolSearch,
    ToolSearchAlwaysDeferMcpTools,
    NonPrefixedMcpToolNames,
    ToolSuggest,
    Plugins,
    ExecutorCapabilityDiscovery,
    PluginHooks,
    InAppBrowser,
    BrowserUse,
    BrowserUseFullCdpAccess,
    BrowserUseExternal,
    ComputerUse,
    RemotePlugin,
    PluginSharing,
    ExternalMigration,
    ImageGeneration,
    ResizeAllImages,
    ItemIds,
    ConcurrentReasoningSummaries,
    SkillMcpDependencyInstall,
    SkillSearch,
    SkillEnvVarDependencyPrompt,
    MentionsV2,
    DefaultModeRequestUserInput,
    GuardianApproval,
    Goals,
    TokenBudget,
    RolloutBudget,
    CurrentTimeReminder,
    ToolCallMcpElicitation,
    AuthElicitation,
    Personality,
    Artifact,
    FastMode,
    RealtimeConversation,
    PreventIdleSleep,
    RemoteCompactionV2,
    UseAgentIdentity,
    WorkspaceDependencies,
    GhostCommit,
    JsRepl,
    JsReplToolsOnly,
    SearchTool,
    UseLinuxSandboxBwrap,
    RequestRule,
    WindowsSandbox,
    WindowsSandboxElevated,
    RemoteModels,
    CodexGitCommit,
    Sqlite,
    ApplyPatchFreeform,
    UnavailableDummyTools,
    Steer,
    CollaborationModes,
    RemoteControl,
    ImageDetailOriginal,
    TuiAppServer,
    WorkspaceOwnerUsageNudge,
    ResponsesWebsockets,
    ResponsesWebsocketsV2,
}

Unique features toggled via configuration.

Variants

ShellTool

Enable the default shell tool.

CodexHooks

Enable Claude-style lifecycle hooks loaded from hooks.json files.

SecretAuthStorage

Store CLI auth in the encrypted local secrets backend when keyring storage is selected.

CodeMode

Enable JavaScript code mode backed by the in-process V8 runtime.

CodeModeBufferedExec

Use a 30-second default yield timeout for code mode exec calls.

CodeModeHost

Run JavaScript code mode in the standalone host process.

CodeModeOnly

Restrict model-visible tools to code mode entrypoints (exec, wait).

UnifiedExec

Use the single unified PTY-backed exec tool.

ShellZshFork

Route shell tool execution through the zsh exec bridge.

UnifiedExecZshFork

Allow unified exec to compose with the zsh exec bridge.

This flag is only a composition gate. Enabling it by itself must not turn on either unified_exec or shell_zsh_fork because those features have separate rollout and enterprise controls.

TerminalResizeReflow

Removed compatibility flag. Transcript scrollback reflow on terminal resize is always on.

TerminalVisualizationInstructions

Add terminal-specific visualization guidance to TUI developer instructions.

ApplyPatchStreamingEvents

Stream structured progress while apply_patch input is being generated.

ExecPermissionApprovals

Allow exec tools to request additional permissions while staying sandboxed.

RequestPermissionsTool

Expose the built-in request_permissions tool.

WebSearchRequest

Allow the model to request web searches that fetch live content.

WebSearchCached

Allow the model to request web searches that fetch cached content. Takes precedence over WebSearchRequest.

StandaloneWebSearch

Expose the extension-backed standalone web search tool.

UseLegacyLandlock

Use the legacy Landlock Linux sandbox fallback instead of the default bubblewrap pipeline.

ShellSnapshot

Experimental shell snapshotting.

DeferredExecutor

Allow turns to start while selected executors are still starting.

RuntimeMetrics

Enable runtime metrics snapshots via a manual reader.

MemoryTool

Enable startup memory extraction and file-backed memory consolidation.

ExternalAgentMemoryImport

Enable importing project-scoped memory from external agents.

LocalThreadStoreCompression

Compress cold local thread-store rollout files.

Chronicle

Enable the Chronicle sidecar for passive screen-context memories.

EnableRequestCompression

Compress request bodies (zstd) when sending streaming requests to codex-backend.

NetworkProxy

Start the managed network proxy for sandboxed sessions.

RespectSystemProxy

Respect host system proxy settings for Codex-owned network clients.

Collab

Enable collab tools.

MultiAgentV2

Enable task-path-based multi-agent routing.

MultiAgentMode

Removed compatibility flag retained as a no-op.

SpawnCsv

Removed compatibility flag for the deleted agent-job tools.

Apps

Enable apps.

EnableMcpApps

Enable MCP apps.

AppsMcpPathOverride

Removed compatibility flag for the legacy Apps MCP path override.

ToolSearch

Removed compatibility flag retained as a no-op now that tool_search is always enabled.

ToolSearchAlwaysDeferMcpTools

Removed compatibility flag. MCP tools are always deferred when tool_search is available.

NonPrefixedMcpToolNames

Expose MCP model-visible namespaces without the legacy mcp__ prefix.

ToolSuggest

Enable discoverable tool suggestions for apps.

Plugins

Enable plugins.

ExecutorCapabilityDiscovery

Discover selected-root plugin and skill manifests through one high-level exec-server RPC.

PluginHooks

Removed compatibility flag for plugin-bundled lifecycle hooks.

InAppBrowser

Allow the in-app browser pane in desktop apps.

Requirements-only gate: this should be set from requirements, not user config.

BrowserUse

Allow Browser Use agent integration in desktop apps.

Requirements-only gate: this should be set from requirements, not user config.

BrowserUseFullCdpAccess

Allow Browser Use integration to access the full Chrome DevTools Protocol surface.

Requirements-only gate: this should be set from requirements, not user config.

BrowserUseExternal

Allow Browser Use integration with external browsers.

Requirements-only gate: this should be set from requirements, not user config.

ComputerUse

Allow Codex Computer Use.

Requirements-only gate: this should be set from requirements, not user config.

RemotePlugin

Enable the PS-backed remote plugin catalog.

PluginSharing

Enable remote plugin sharing flows.

ExternalMigration

Removed compatibility flag retained as a no-op.

ImageGeneration

Enable extension-backed image generation.

ResizeAllImages

Removed compatibility flag for always-on centralized image preparation.

ItemIds

Removed compatibility flag for always-on response item IDs.

ConcurrentReasoningSummaries

Request sequential cutoff reasoning summary delivery.

SkillMcpDependencyInstall

Allow prompting and installing missing MCP dependencies.

SkillSearch

Run cheap skill-search methods in shadow mode and emit experiment metrics.

SkillEnvVarDependencyPrompt

Removed compatibility flag for deleted skill env var dependency prompting.

MentionsV2

Enable the unified mention popup used by default in the TUI.

DefaultModeRequestUserInput

Allow request_user_input in Default collaboration mode.

GuardianApproval

Enable automatic review for approval prompts.

Goals

Enable persisted thread goals and automatic goal continuation.

TokenBudget

Add current context-window metadata to model-visible context.

RolloutBudget

Track and report a shared token budget across a session’s agent threads.

CurrentTimeReminder

Add current-time reminders to model-visible context.

ToolCallMcpElicitation

Route MCP tool approval prompts through the MCP elicitation request path.

AuthElicitation

Prompt Codex Apps connector auth failures through MCP URL elicitations.

Personality

Enable personality selection in the TUI.

Artifact

Enable native artifact tools.

FastMode

Enable Fast mode selection in the TUI and request layer.

RealtimeConversation

Enable experimental realtime voice conversation mode in the TUI.

PreventIdleSleep

Prevent idle system sleep while a turn is actively running.

RemoteCompactionV2

Enable remote compaction v2 over the normal Responses API.

UseAgentIdentity

Use Agent Identity for ChatGPT-authenticated sessions.

WorkspaceDependencies

Enable workspace dependency support.

GhostCommit

Removed compatibility flag retained as a no-op so old configs can still parse undo.

JsRepl

Removed compatibility flag for the deleted JavaScript REPL feature.

JsReplToolsOnly

Removed compatibility flag for the deleted JavaScript REPL tool-only mode.

SearchTool

Legacy search-tool feature flag kept for backward compatibility.

UseLinuxSandboxBwrap

Removed legacy Linux bubblewrap opt-in flag retained as a no-op so old wrappers and config can still parse it.

RequestRule

Allow the model to request approval and propose exec rules.

WindowsSandbox

Enable Windows sandbox (restricted token) on Windows.

WindowsSandboxElevated

Use the elevated Windows sandbox pipeline (setup + runner).

RemoteModels

Legacy remote models flag kept for backward compatibility.

CodexGitCommit

Removed legacy git commit attribution guidance flag.

Sqlite

Persist rollout metadata to a local SQLite database.

ApplyPatchFreeform

Removed compatibility flag for the deleted apply_patch fallback feature.

UnavailableDummyTools

Removed compatibility flag for the deleted unavailable-tool placeholder backfill.

Steer

Steer feature flag - when enabled, Enter submits immediately instead of queuing. Kept for config backward compatibility; behavior is always steer-enabled.

CollaborationModes

Enable collaboration modes (Plan, Default). Kept for config backward compatibility; behavior is always collaboration-modes-enabled.

RemoteControl

Removed compatibility flag for the deleted remote control feature.

ImageDetailOriginal

Removed compatibility flag retained as a no-op so old wrappers can still pass --enable image_detail_original.

TuiAppServer

Removed compatibility flag. The TUI now always uses the app-server implementation.

WorkspaceOwnerUsageNudge

Removed compatibility flag retained as a no-op now that workspace owner usage nudges are always enabled.

ResponsesWebsockets

Legacy rollout flag for Responses API WebSocket transport experiments.

ResponsesWebsocketsV2

Legacy rollout flag for Responses API WebSocket transport v2 experiments.

Implementations

impl Feature

pub fn key(self) -> &'static str

pub fn stage(self) -> Stage

pub fn default_enabled(self) -> bool

Trait Implementations

impl Clone for Feature

fn clone(&self) -> Feature

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Feature

impl Debug for Feature

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Feature

impl Hash for Feature

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Feature

fn cmp(&self, other: &Feature) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Feature

fn eq(&self, other: &Feature) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Feature

fn partial_cmp(&self, other: &Feature) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Feature