sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a user clicks on a link embedded in the active tab shown alongside the contextual tasks panel. Always recorded as true. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Records the number of active tasks (tasks that are open in a full tab or in the side panel). This is recorded every time a task is created on the local device. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a navigation to an AI page is intercepted in the contextual tasks framework. Records the source of the initial entrypoint. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a user clicks on a link embedded in the AI response on the contextual tasks page. Split out by the contextual tasks form factor (panel or tab) that the link was clicked on.Always recorded as true. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a user navigates from side panel to full tab using the back button in the browser. Always recorded as true. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a user explicitly adds the active tab after previously deleting the auto-suggestion. Always recorded as true. nguyenbryan@chromium.org chrome-contextual-tasks-eng@google.com Recorded when the user clicks the Lens button inside the contextual tasks composebox. Always recorded as true. sophiechang@chromium.org abhayprakash@google.com Recorded for each candidate tab when retrieving tab signals during Contextual Tasks context calculation. Records whether the candidate tab has embeddings. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is made in the contextual tasks framework and context was calculated successfully. Records the duration it took to calculate context for the query. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is entered by the user (before being sent) in the contextual tasks framework. Records the status of context determination (success or failure reason). sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks. Records seconds (upto 3600) since each of the tab was active. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks. Records 100*best_similarity_score between query embeddings and passage embeddings for the page. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the number of tabs that were explicitly chosen to be uploaded by the user. Note that tabs with the same URL are only counted once. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the number of words that were in common between the query and the tab title. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is made in the contextual tasks framework. Records the duration it took to calculate the query embedding. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the number of tabs that were determined to be relevant to the query. orinj@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a query is made and the active tab eligibility determined. Records the number of site exclusions checked to determine eligibility of active tab. orinj@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a query is made and the active tab eligibility determined. Records whether the active tab was filtered by site exclusions. orinj@chromium.org chrome-contextual-tasks-eng@google.com Recorded when eligibility is determined for all tabs. Records the number of milliseconds spent on site exclusion checking/filtering for all tabs. orinj@chromium.org chrome-contextual-tasks-eng@google.com Recorded when eligibility is determined for all tabs. Records the number of tabs checked for site exclusions. orinj@chromium.org chrome-contextual-tasks-eng@google.com Recorded when eligibility is determined for all tabs. Records the number of tabs filtered out by site exclusions. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the number of tabs with unique URLs that were predicted by the model but were not in the explicitly chosen set. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the number of tabs with unique URLsthat were in both the explicitly chosen set and the set that was predicted by the model. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework and context was calculated successfully. Records the percentage of tabs with unique URLs that were in both the explicitly chosen set and the set that was predicted by the model. This is calculated by dividing the number of tabs that were in both sets by the number of tabs in the explicitly chosen set. sophiechang@chromium.org abhayprakash@google.com Recorded every time a query is successfully made in the contextual tasks framework when using multi-signal scoring. Records the final computed score for each tab, multiplied by 100. dianaou@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time the ephemeral (unpinned) contextual tasks toolbar button becomes visible in the browser toolbar. This occurs when an eligible contextual task is active or suggested and the toolbar button transitions from hidden to shown. Always recorded as true. hujasonx@google.com chrome-contextual-tasks-eng@google.com Logged when the back or forward button is clicked while the user is viewing the Contextual Tasks full tab, causing a task switch. Always recorded as true. juanmojica@google.com chrome-contextual-tasks-eng@google.com Recorded every time the contextual tasks framework navigates the top level of the inner frame contents. Records the HTTP status code of the response when the navigation finishes. juanmojica@google.com chrome-contextual-tasks-eng@google.com Recorded every time the contextual tasks framework navigates the top level of the inner frame contents, excluding zero state loads. Records the HTTP status code of the response when the navigation finishes. mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the total time taken to fetch the OAuth access token for Contextual Tasks, including any retries due to transient errors. Recorded when the fetch process finally completes (either success or persistent failure). Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records initiations of the OAuth access token fetch process for Contextual Tasks. Recorded when the fetch process begins, before any network requests are made, regardless if the token is cached. Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the latency between the WebUI app constructor being called and the first top-level load commit event of the hosted webview. This represents the time from the WebUI being ready, and the top level AIM navigation actually happening. Recorded once per WebUI initialization when the webview commits its first top-level load. mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records whether the OAuth access token fetch for Contextual Tasks completed successfully. Recorded when the fetch process finally completes, meaning no more retries either due to a success or a persistent error. Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the number of attempts (tries) required to complete the OAuth access token fetch for Contextual Tasks. This includes transient error retries. A value of 1 means it succeeded (or failed persistently) on the first try. Recorded when the fetch process finally completes. Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the number of attempts (tries) before the OAuth access token fetch for Contextual Tasks ultimately failed. This includes transient error retries. A value of 1 means it failed persistently on the first try. Recorded when the fetch process finally completes with a persistent failure. Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the number of attempts (tries) required to successfully complete the OAuth access token fetch for Contextual Tasks. This includes transient error retries. A value of 1 means it succeeded on the first try. Recorded when the fetch process finally completes successfully. Slices: {OAuthTrigger} mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records whether the successfully fetched OAuth access token was served from the local cache. This is determined by a heuristic where a response time of less than 50ms is classified as a cache hit. Recorded only upon successful token retrieval. Slices: {OAuthTrigger} sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a cobrowsing session has completed in the contextual tasks framework. This can happen if the side panel is explicitly closed by the user, the window housing the side panel is closed, or the Chrome session has ended. Note that a cobrowsing session is only considered to have started if a user enters a query via the side panel. Always recorded as true. juanmojica@google.com mercerd@chromium.org chrome-contextual-tasks-eng@google.com Recorded when a cobrowsing session opened via AIO2Cobr (AI Overviews to CoBrowse) flows is closed or ended. Measures the time elapsed from when the cobrowse panel was opened until it was closed. nguyenbryan@chromium.org chrome-contextual-tasks-eng@google.com Recorded when the user clicks the side panel close button, for sessions that were entered due to a link click from AI mode. Always recorded as true. juanmojica@google.com mercerd@chromium.org chrome-contextual-tasks-eng@google.com Recorded when the user clicks the side panel close button, for sessions that were entered via AIO2Cobr (AI Overviews to CoBrowse) flows. Always recorded as true. nguyenbryan@chromium.org chrome-contextual-tasks-eng@google.com Recorded when the user clicks the side panel close button, for sessions that were entered via the Lens Overlay. Always recorded as true. nguyenbryan@chromium.org chrome-contextual-tasks-eng@google.com Recorded when the user clicks the side panel close button, for sessions where the entry point was not recorded as another histogram. Always recorded as true. nguyenbryan@google.com chrome-contextual-tasks-eng@google.com Recorded when a user closes a content tab that had an associated contextual task and had the side panel open (either currently active, or logically open before the tab was backgrounded). The value indicates whether the closed tab was the active tab or a background tab. sophiechang@chromium.org nyquist@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a tab is affiliated with a task. Records the number of tabs that are affiliated with the task that has the new affilation. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time a tab change occurs and affects the contextual tasks panel state. {ActionType} Always recorded as true. yuhengh@chromium.org nguyenbryan@google.com chrome-contextual-tasks-eng@google.com Recorded when the user interacts with the contextual tasks toolbar close tab button. Always recorded as true. jamesleung@google.com chrome-contextual-tasks-eng@google.com Tracks user interactions with the voice search feature on the Contextual Tasks composebox. mercerd@chromium.org chrome-contextual-tasks-eng@google.com Records the OAuth error when a token is requested for use in the embedded page of the WebUI. "None" indicates that the request was successful. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time the user interacted with the contextual tasks web UI directly. {ActionType} Always recorded as true. sophiechang@chromium.org chrome-contextual-tasks-eng@google.com Recorded every time the user clicks on {EntrypointType} in the Chrome toolbar to toggle the Contextual Tasks side panel state. {ActionType} Always recorded as true.