kmg@google.com boujane@google.com koilos@google.com The result of trying to resolve a DomNode's geometry. Recorded when PageTargets are converted. masnoble@google.com johannhof@google.com Recorded when a direct download is triggered by an actor task. masnoble@google.com johannhof@google.com Recorded when a 'save as' download dialog is triggered by an actor task. kmg@google.com boujane@google.com koilos@google.com The result of trying to convert a DomNode to a gfx::Point. Recorded when PageTargets are converted. kmg@google.com boujane@google.com koilos@google.com The type of the PageTarget specified by the model. Recorded when PageTargets are converted from DomNode to gfx::Point. jacobstanley@google.com koilos@google.com The result of retrieving the renderer resolved target. Recorded everytime we compute a MouseMove UI event. This metric is gated behind a feature. kenok@google.com chrstne@google.com koilos@google.com Records the duration of time it takes for a UI event to complete. Note that this metric is only recorded on clients on which a high-resolution clock is available. kenok@google.com chrstne@google.com koilos@google.com Recorded when a UI event fails. kmg@google.com boujane@google.com koilos@google.com Recorded just before ActionResultCallback within ExecutionEngine. Reports the result codes of completed actions. bbetini@google.com ritkagup@google.com Recorded when the Actor foreground service implementation is destroyed. Captures the total duration of when the service was running from the first onStartCommand to onDestroy. Note that this metric is only recorded on Android. bbetini@google.com ritkagup@google.com Records instances where the foreground undergoes a lifecycle change (when the foreground starts, changes pinned notification, or stops). Note that this metric is only recorded on Android. bbetini@google.com ritkagup@google.com Records instances of ActorForegroundService stops. The number of expected stops (stopped) and unexpected stops (task removed, low memory, etc) can be compared to get a sense of how often the service crashes to see how it handles restarts. For example, the number of times the service is stopped because of low memory can be compared to the number of times the service has been destroyed to see how frequently it occurs. Note that this metric is only recorded on Android. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Recorded when the account used to login is automatically selected due to a previous user choice to always allow logging in with that account. Recorded once per actor login request, when the login attempt starts and the account already had a permanent permission granted. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com An enum of the result from a query to get credentials. Recorded once per actor login request, after fetching the accounts from all sources is completed. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Recorded when there was some deduplication performed in order to show the accounts. Recorded at most once per actor request to show accounts to sign in (if multiple accounts are deduplicated in the same request, only one record is made). npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Recorded when the FedCM continuation API is invoked during an actor autologin flow. Recorded when the actor is notified that the user must take over due to the continuation API. This is only ever recorded when the user selects the federated account to login. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Recorded when there is a hanging FedCM request during an actor login request. Recorded at most once per actor login request. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com An enum with the final result from a federated actor login request. Recorded when the login flow completes (successfully or otherwise). npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Returns the time from when a "get credentials" request completes until an account is chosen. Recorded at most once per actor login request. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com Returns the time from actor login request to when the "get credentials" request is completed. Recorded once per actor login request. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com The number of accounts shown to the user during an actor login request. Possible values: 0, 1, 2, 3+. Recorded once per actor login request, when accounts are shown to the user. npm@google.com ioanap@google.com otara@google.com web-identity-eng@google.com An enum of the type of account chosen by the user to login during an actor login request. Recorded once per actor login request. dylancutler@google.com johannhof@google.com Records whether a page transition for a cross-origin navigation would have had origin gating, a safety feature which ensures the actor only interacts with trusted origins, is applied. We origin gate cross-origin client- initiated redirects and server redirects on the last link of the redirect chain. dylancutler@google.com johannhof@google.com Records the size of the allow list of origins which the actor can navigate to for the given task. These origins come from server actions or when a navigation confirmation request is granted. Recorded at the end of every task. dylancutler@google.com johannhof@google.com Records whether navigation gating was applied when the actor tried to navigate the main frame. True means that gating was applied and the navigation was deferred until confirmation. False means the navigation was allowed to continue without gating. Recorded whenever the actor navigates the main frame. dylancutler@google.com johannhof@google.com Records the size of the list of origins that the user confirmed the actor can interact with. Recorded at the end of every task. Warning: this histogram was expired from 2026-08-02 to 2026-08-25; data may be missing. masnoble@google.com dylancutler@google.com Records the latency of the dark launch navigation confirmation request. Recorded when the browser receives the response from the confirmation request in dark launch mode. tquintanilla@google.com dylancutler@google.com Records the outcome of actor navigation gating decisions. Recorded every time the actor attempts to navigate to a new URL and the origin gating feature is enabled. dylancutler@google.com johannhof@google.com Records when actor is given permission to continue navigating after navigation gating has already applied. Recorded when the browser receives the response from its confirmation request. dylancutler@google.com johannhof@google.com cfredric@chromium.org Records whether actor navigation gating is used to evaluate a navigation for which the destination origin and {Origin} origin are same-{Scope}. Recorded when the actor navigates the main frame and origin gating is active, regardless of whether the navigation is allowed or blocked. dylancutler@google.com johannhof@google.com Records how long origin gating processing is taking when it decides if an actor can navigate to a new origin. Includes time for synchronous and asynchronous checks, but does not include time for user prompts. Recorded when the actor navigates the main frame. bbetini@google.com ritikagup@google.com Recorded when the user clicks an Actor notification to bring Chrome to the foreground. Captures the state of the task associated with the notification at the moment the intent is processed. Note that this metric is only recorded on Android. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Records whether the ObservationDelayController's DidStartNaigation() occurred. Recorded when the observation delay is completed. linnan@google.com bokan@google.com chrome-synapse-team@google.com Records whether the ObservationDelayController's Wait() timed out. Recorded when the observation delay is completed. linnan@google.com bokan@google.com chrome-synapse-team@google.com Records whether an additional delay was added by the ObservationDelayController because the Largest Contentful Paint (LCP) had not yet occurred. Not recorded for timeouts. linnan@google.com bokan@google.com chrome-synapse-team@google.com Measures the duration of {State} in the ObservationDelayController's state machine. Not recorded for timeouts. linnan@google.com bokan@google.com chrome-synapse-team@google.com Measures the total time from when Wait() is called until the observation delay completes. Not recorded for timeouts. linnan@google.com shivanisha@google.com chrome-synapse-team@google.com Recorded when a new Annotated Page Content (APC) is fetched by {Source}. Compares the new APC with the immediately preceding fetch from ANY source (e.g. Actor or Glic) and records whether they are identical. This is used to evaluate the potential benefit of a shared APC cache between different features. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Duration of fetching of the annotated page context for the PerformActions response. bokan@google.com chrome-synapse-team@google.com Records the outcome of an page context fetch obeservation. Recorded only for context fetches in response to a performActions call. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Duration of screenshot for the PerformActions response. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Number of tabs to observe in PerformActions response. bokan@google.com chrome-synapse-team@google.com Records the result of a RequestTabObservation for each tab of an observation. Recorded only for context fetches in response to a performActions call. When a failure causes the page context fetch to be retried this histogram records both the failed/successful tab observation results in the initial fetch as well as the the result of the fetch in the retry. jacobstanley@google.com koilos@google.com Records the frame status when TimeOfUseValidation is invoked in PageTool. When the split execution flow is active (requires both the renderer resolved target and magic cursor features to be enabled), the the target frame is resolved and its document is stored earlier during the Validate step. During TimeOfUseValidation, we verify that the current target frame matches the one originally stored. If they are not equivalent, the enum captures whether the original document was destroyed or if the frames simply mismatched. jacobstanley@google.com koilos@google.com Records whether ComputeObservedTargetAndValidateFrame succeeds during TimeOfUseValidation. We can compare the success rates, to determine if computing the observation earlier in the Validate step leads to a higher rate of target invalidation due to the page changing during the initialize and execution gap. bbetini@google.com ritikagup@google.com Recorded when Picture-in-Picture mode for Actor exits, capturing the total time spent in PiP mode. bbetini@google.com ritikagup@google.com Recorded when Picture-in-Picture mode for Actor exits, indicating the reason for the exit. bbetini@google.com ritikagup@google.com Recorded when chrome enters or exits Picture-in-Picture mode based on the actor task state. bbetini@google.com ritikagup@google.com Recorded when the user interacts with the Pause, Resume, or Expand actions on the Picture-in-Picture window. linnan@google.com bokan@google.com chrome-synapse-team@google.com Records the reason for page stability on renderer side. Recorded when the stability check is complete. Only recorded if NotifyWhenStable() is called. linnan@google.com bokan@google.com chrome-synapse-team@google.com The time from when active monitoring starts (kStartMonitoring state) until both the network and main thread are idle. This is recorded regardless of whether the overall stability check completes due to this condition or another. This provides an unbiased measurement for analyzing page quiescence performance. Not recorded when the stability check is aborted because the render frame was destroyed or timeout. linnan@google.com bokan@google.com chrome-synapse-team@google.com The time from when active monitoring starts (kStartMonitoring state) until paint stability is reached. This is recorded regardless of whether the overall stability check completes due to this condition or another. This provides an unbiased measurement for analyzing paint stability performance. Not recorded when the stability check is aborted because the render frame was destroyed or timeout. linnan@google.com bokan@google.com chrome-synapse-team@google.com The time from when active monitoring starts (kStartMonitoring state) until the stability check completes (due to paint or network/main thread idle). Not recorded for timeouts or aborted checks (e.g., Mojo disconnection or the render frame destroyed). It excludes any initial, tool-specific delay. linnan@google.com bokan@google.com chrome-synapse-team@google.com The total time from when NotifyWhenStable() is called until the stability check is aborted because the render frame was destroyed. This may be used to analyze the duration of checks interrupted by a cross-document navigation. linnan@google.com bokan@google.com chrome-synapse-team@google.com The total time from when NotifyWhenStable() is called until the stability check completes (due to paint or network/main thread idle). Not recorded for timeouts or aborted checks (e.g., Mojo disconnection or the render frame destroyed). linnan@google.com bokan@google.com chrome-synapse-team@google.com Counts the number of subsequent interaction contentful paints that occur during a single stability check. The count is recorded when the monitor is destroyed, e.g. when the render frame was destroyed or timeout. linnan@google.com bokan@google.com chrome-synapse-team@google.com The average time between interaction contentful paints since NotifyWhenStable() is called. A single sample, representing the average of all observed paint intervals, is recorded when the monitor is destroyed, e.g. when the render frame was destroyed or timeout. linnan@google.com bokan@google.com chrome-synapse-team@google.com The time from when NotifyWhenStable() is called until the first interaction contentful paint occurs. Not recorded when the stability check is aborted because the render frame was destroyed or timeout. tquintanilla@google.com dylancutler@google.com Records the outcome of parsing the navigation allowed static safety list. Recorded every time an attempt is made to parse a navigation static safety lists JSON, regardless of whether or not the parse was successful. tquintanilla@google.com dylancutler@google.com Records the outcome of parsing the navigation blocked static safety list. Recorded every time an attempt is made to parse a navigation static safety lists JSON, regardless of whether or not the parse was successful. dtapuska@google.com erikchen@google.com chrome-synapse-team@google.com Recorded when a task is stopped with {StoppedReason}. This captures the number of the actions in the task. yuhengh@chromium.org nyquist@chromium.org dtrainor@chromium.org Recorded when a task is stopped with {StoppedReason}. This captures the number of the actions in the task. Only recorded when ActorRecordInvocationSourceCompletionMetrics is enabled and the task was created through Glic with a supported invocation source. Sources not listed in GlicInvocationSourceForActor are bucketed as Other. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task is triggered for the first time. If the browser has actuation capability, this will be recorded as true, else it will be false. rosiey@google.com sauski@google.com Tracks the reason why the Browser Agent might be blocked from performing an actuation on a web page. This is recorded every time a new task is initiated via GlicActorTaskManager::CreateTask. The logged value comes from the GlicActorPolicyChecker::CannotActReason enum, detailing the specific policy or capability issue (e.g., kDisabledByPolicy, kAccountCapabilityIneligible). Note that if a domain is exempted from a block via a URL allowlist, the actuation succeeds and logs kNone. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task is stopped with {StoppedReason}. This captures the total time the task was actuating while all of its controlled tabs are not visible (when tab contents are OCCLUDED or HIDDEN). This excludes time spent in paused states. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task is stopped with {StoppedReason}. This captures the total time the task was actuating while at least one of its controlled tabs is visible. This excludes time spent in paused states. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Recorded when a task is stopped with {StoppedReason}. This captures the runtime of the task including any paused state. yuhengh@chromium.org nyquist@chromium.org dtrainor@chromium.org Recorded when a task is stopped with {StoppedReason}. This captures the runtime of the task including any paused state. Broken down by the invocation source that initially opened the Glic instance which created the task. Only recorded when ActorRecordInvocationSourceCompletionMetrics is enabled and the task was created through Glic with a supported invocation source. Sources not listed in GlicInvocationSourceForActor are bucketed as Other. dtapuska@google.com erikchen@google.com chrome-synapse-team@google.com Recorded when a task is stopped with {StoppedReason}. This captures the runtime of the task excluding any paused state. yuhengh@chromium.org nyquist@chromium.org dtrainor@chromium.org Recorded when a task is stopped with {StoppedReason}. This captures the runtime of the task excluding any paused state. Only recorded when ActorRecordInvocationSourceCompletionMetrics is enabled and the task was created through Glic with a supported invocation source. Sources not listed in GlicInvocationSourceForActor are bucketed as Other. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com Recorded when a task is stopped with {StoppedReason}. This captures the number of times the task was interrupted. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task makes a state transition from the old state ({OldState}) to the new state ({NewState}). This captures the number of actions the task made in the first state ({OldState}) before the transition. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task makes a state transition. This captures the duration of time the task spent in the {ActorTaskState} state. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com The reason the task was stopped. linnan@google.com bokan@google.com chrome-synapse-team@google.com Counts the total number of subsequent Waits per task. A subsequent wait is a solitary Wait action that follows a successful act sequence since the task was created or last resumed. Recorded once at the end of a task's life. linnan@google.com bokan@google.com chrome-synapse-team@google.com Counts the number of subsequent Waits that occurred after a specific tool per task. A subsequent wait is a solitary Wait action that follows a successful act sequence where {ToolRequest} was the last tool. Recorded once at the end of a task's life. bbetini@google.com ritkagup@google.com Recorded when a task is completed (Finished, Failed, or Cancelled). This captures the cumulative duration the task spent in the {ActorTaskState} state while Chrome was in {ActorMode} mode. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com The duration of how long a given tool took to execute when it was successful. dtapuska@google.com bokan@google.com chrome-synapse-team@google.com The duration of how long a given tool took to stabilize after execution when it was successful. jacobstanley@google.com koilos@google.com Records the result code of the tool's revalidation. This occurs when the tool's validation logic is invoked as part of the InitializeTool method, and we need to validate a second time during execution to make sure that we are executing the tool as close to validation as possible. mfoltz@google.com agentic-web-platform-team@google.com Recorded for every script tool invocation. Reports the outcome of the script tool, using the ActionResultCode from the ActionResult. mfoltz@google.com agentic-web-platform-team@google.com Recorded for every script tool invocation. Measures the size of the input arguments string in bytes. mfoltz@google.com agentic-web-platform-team@google.com Recorded whenever a script tool is invoked. Indicates whether the invocation succeeded or failed. Success means ActionResult.code is kOk. mfoltz@google.com agentic-web-platform-team@google.com Recorded for successful script tool invocations. Measures the size of the result string returned by the script tool in bytes. jacobstanley@google.com koilos@google.com The result of Time-Of-Check Time-Of-Use validation performed before a tool is invoked on a DOM element in a Web page. This validation is done a second time when the initial validation was performed as part of InitializeTool and not ExecuteTool. mfoltz@google.com rodneyding@google.com The result of Time-Of-Check Time-Of-Use validation performed before a tool is invoked on a DOM element in a Web page. kenok@google.com chrstne@google.com koilos@google.com Recorded when a global task indicator nudge is shown. kenok@google.com chrstne@google.com koilos@google.com Recorded when an error happens in the ActorUiTabController. chrstne@google.com aashnas@google.com koilos@google.com Recorded when an invalid task is encountered within ActorUiTaskIcon or related component creation. kenok@google.com mjenn@google.com koilos@google.com Records the number of rows in the Task List Bubble when it is shown or updated. kenok@google.com chrstne@google.com koilos@google.com Recorded when a task nudge is shown. chrstne@google.com kenok@google.com koilos@google.com Reports the number of pending callbacks for async ui calls before the callbacks are invoked in ActorUiTabController.