diff --git a/app/controllers/admin/prompt_sandboxes_controller.rb b/app/controllers/admin/prompt_sandboxes_controller.rb
index 0c90d0aea..d59e0453c 100644
--- a/app/controllers/admin/prompt_sandboxes_controller.rb
+++ b/app/controllers/admin/prompt_sandboxes_controller.rb
@@ -2,13 +2,13 @@ class Admin::PromptSandboxesController < AdminController
   include DayTimelinesScoped
 
   MODELS = %w[
-      chatgpt-4o-latest
-      gpt-4.1
-      gpt-3.5-turbo
-      gpt-4.1-mini
-      gpt-4.1-nano
-      gpt-4o-mini
-    ]
+    chatgpt-4o-latest
+    gpt-4.1
+    gpt-3.5-turbo
+    gpt-4.1-mini
+    gpt-4.1-nano
+    gpt-4o-mini
+  ]
 
   def show
     @llm_models = MODELS.map { |model| [ model, model ] }
diff --git a/app/models/event/summarizer.rb b/app/models/event/summarizer.rb
index 723d55da6..cd7cb2fb7 100644
--- a/app/models/event/summarizer.rb
+++ b/app/models/event/summarizer.rb
@@ -9,11 +9,11 @@ class Event::Summarizer
   # LLM_MODEL = "gpt-4.1"
 
   PROMPT = <<~PROMPT
-    You are an expert in writing summaries of activity for a general purpose bug/issues tracker.  
+    You are an expert in writing summaries of activity for a general purpose bug/issues tracker.#{'  '}
     Transform a chronological list of **issue-tracker events** (cards + comments) into a **concise, high-signal summary**.
 
     ## What to include
-    - **Key outcomes** – insights, decisions, blockers created/removed.  
+    - **Key outcomes** – insights, decisions, blockers created/removed.#{'  '}
     - **Notable discussion points** that affect scope, timeline, or technical approach.
     - How things are looking.
     - Newly created cards.
@@ -21,27 +21,27 @@ class Event::Summarizer
 
     ## Writing style
     - Instead of using passive voice, prefer referring to users (authors and creators) as the subjects doing things.
-    - Aggregate related items into thematic clusters; avoid repeating card titles verbatim.  
+    - Aggregate related items into thematic clusters; avoid repeating card titles verbatim.#{'  '}
     - Prefer compact paragraphs over bullet lists.
-    - Refer to people by first name (or full name if duplicates exist).  
-      - e.g. “Ann closed …”, not “Card 123 was closed by Ann.”  
-    
+    - Refer to people by first name (or full name if duplicates exist).#{'  '}
+      - e.g. “Ann closed …”, not “Card 123 was closed by Ann.”#{'  '}
+
     ## Formatting rules
-    - Output **Markdown** only.  
+    - Output **Markdown** only.#{'  '}
     - Keep the summary around **#{MAX_WORDS} words**.
         * For links, count the anchor text words, but ignore the target path.
     - Write 2 paragraphs at most.
-    - Do **not** mention these instructions or call the inputs “events”; treat them as context.  
+    - Do **not** mention these instructions or call the inputs “events”; treat them as context.#{'  '}
     - Prioritise relevance and meaning over completeness.
-    
+
     ## Linking rules
     - **When possible, embed every card or comment reference inside the sentence that summarises it.*
       - Use a natural phrase from the sentence as the **anchor text**.
       - If can't link the card with a natural phrase, don't link it at all.
-        * **IMPORTANT**: The card ID is not a natural phrase. Don't use it.  
-    - Markdown link format: [anchor text](/full/path/).  
+        * **IMPORTANT**: The card ID is not a natural phrase. Don't use it.#{'  '}
+    - Markdown link format: [anchor text](/full/path/).#{'  '}
       - Preserve the path exactly as provided (including the leading "/").
-    - Example:  
+    - Example:#{'  '}
       - ✅ [Ann closed the stale login-flow fix](<card path>)
       - ✅ Ann [pointed out how to fix the layout problem](<comment path>)
       - ❌ Ann closed card 123. (<card path>)