diff --git a/app/controllers/admin/prompt_sandboxes_controller.rb b/app/controllers/admin/prompt_sandboxes_controller.rb
index 32c37ae13..88fe6a7d8 100644
--- a/app/controllers/admin/prompt_sandboxes_controller.rb
+++ b/app/controllers/admin/prompt_sandboxes_controller.rb
@@ -5,10 +5,10 @@ class Admin::PromptSandboxesController < AdminController
     @llm_model = params[:llm_model] || Event::Summarizer::LLM_MODEL
 
     if @prompt = cookies[:prompt].presence
-      @activity_summary = build_activity_summary
+      @period_highlights = build_period_highlights
       cookies.delete :prompt
     else
-      @activity_summary = @day_timeline.summary
+      @period_highlights = @day_timeline.weekly_highlights
       @prompt = Event::Summarizer::PROMPT
     end
   end
@@ -21,9 +21,10 @@ class Admin::PromptSandboxesController < AdminController
   end
 
   private
-    def build_activity_summary
-      summarizer = Event::Summarizer.new(@day_timeline.events, prompt: @prompt, llm_model: @llm_model)
-      content, cost_in_microcents = summarizer.summarize
-      Event::ActivitySummary.new(content: content, cost_in_microcents: cost_in_microcents)
+    def build_period_highlights
+      period = PeriodHighlights::Period.new(Current.user.collections, starts_at: @day_timeline.day.utc.beginning_of_week(:sunday), duration: 1.week)
+      summarizer = Event::Summarizer.new(period.events, prompt: @prompt, llm_model: @llm_model)
+      content = summarizer.summarized_content
+      PeriodHighlights.new(content: content, cost_in_microcents: summarizer.cost.in_microcents)
     end
 end
diff --git a/app/views/admin/prompt_sandboxes/show.html.erb b/app/views/admin/prompt_sandboxes/show.html.erb
index be745ae53..6b82e5de5 100644
--- a/app/views/admin/prompt_sandboxes/show.html.erb
+++ b/app/views/admin/prompt_sandboxes/show.html.erb
@@ -28,16 +28,7 @@
   <div class="margin-block fill-shade txt-ink border border-radius pad">
     <h2 class="margin-block">Summary</h2>
     <div class="summary-content">
-      <%= @activity_summary&.to_html %>
-    </div>
-  </div>
-
-  <div class="margin-block fill-shade txt-ink border border-radius pad">
-    <h2 class="margin-block">Summarized Contents</h2>
-    <div class="summary-content">
-    <pre>
-<%= @day_timeline.summarizable_content %>
-    </pre>
+      <%= @period_highlights&.to_html %>
     </div>
   </div>
 </div>
diff --git a/app/views/events/_weekly_highlights.html.erb b/app/views/events/_weekly_highlights.html.erb
index 8c4566fd4..f2788c6ab 100644
--- a/app/views/events/_weekly_highlights.html.erb
+++ b/app/views/events/_weekly_highlights.html.erb
@@ -13,5 +13,12 @@
 
   <div class="events__activity-summary txt-small">
     <%= day_timeline.weekly_highlights.to_html %>
+
+    <% if Current.user.staff? %>
+      <%= link_to admin_prompt_sandbox_path(day: day_timeline.day), class: "btn txt-xx-small events__activity-prompt-edit" do %>
+        <%= icon_tag "bolt" %>
+        <span class="for-screen-reader">Prompt sandbox</span>
+      <% end %>
+    <% end %>
   </div>
 <% end %>