diff --git a/backend/agent/sample_responses/1.txt b/backend/agent/sample_responses/1.txt
index 9dd324df..a1ad300b 100644
--- a/backend/agent/sample_responses/1.txt
+++ b/backend/agent/sample_responses/1.txt
@@ -614,11 +614,11 @@ Let me update our todo.md file to reflect our progress:
 - [x] Ensure responsive design
 
 ## Testing
-- [ ] Test game mechanics
-- [ ] Test collision detection
-- [ ] Test scoring
-- [ ] Test on different screen sizes
-- [ ] Final review and adjustments
+- [x] Test game mechanics
+- [x] Test collision detection
+- [x] Test scoring
+- [x] Test on different screen sizes
+- [x] Final review and adjustments
 </full-file-rewrite>
 
 ## Testing the Game
@@ -645,36 +645,20 @@ ls -la
 
 Let's update our todo list to mark the testing as complete:
 
-<full-file-rewrite file_path="todo.md">
-# Pong Game Development Plan
-
-## Project Setup
-- [x] Create basic project structure (HTML, CSS, JS files)
-- [x] Set up the HTML canvas element
-- [x] Create basic styling 
-
-## Game Implementation
-- [x] Implement game canvas and rendering context
-- [x] Create the paddles (player and opponent)
-- [x] Create the ball with movement physics
-- [x] Implement collision detection
-- [x] Add scoring system
-- [x] Implement basic AI for the opponent paddle
-
-## Game Polish
-- [x] Add sound effects
-- [x] Implement start/restart game functionality
-- [x] Add visual effects (ball trails, paddle hits)
-- [x] Add game instructions
-- [x] Ensure responsive design
-
-## Testing
+<str-replace file_path="todo.md">
+    <old_str>## Testing
+- [ ] Test game mechanics
+- [ ] Test collision detection
+- [ ] Test scoring
+- [ ] Test on different screen sizes
+- [ ] Final review and adjustments</old_str>
+    <new_str>## Testing
 - [x] Test game mechanics
 - [x] Test collision detection
 - [x] Test scoring
 - [x] Test on different screen sizes
-- [x] Final review and adjustments
-</full-file-rewrite>
+- [x] Final review and adjustments</new_str>
+</str-replace>
 
 <ask attachments="index.html,style.css,script.js">
 I've built a classic Pong game for you! The game features:
diff --git a/backend/agent/sample_responses/2.txt b/backend/agent/sample_responses/2.txt
index 33399a73..c6c8fa4d 100644
--- a/backend/agent/sample_responses/2.txt
+++ b/backend/agent/sample_responses/2.txt
@@ -71,42 +71,20 @@ Now let's look at transportation options within Japan:
 
 Based on the searches, I'm going to compile information to create your itinerary. First, let me mark some research tasks as complete and update our todo list:
 
-<full-file-rewrite file_path="todo.md">
-# Japan Trip Planning Todo
-
-## Research Phase
+<str-replace file_path="todo.md">
+    <old_str>## Research Phase
+- [ ] Research flight options from Seattle to Japan
+- [ ] Research best cities/regions to visit based on interests (historical sites, hidden gems, cultural experiences)
+- [ ] Research transportation options within Japan
+- [ ] Research accommodation options within budget
+- [ ] Research proposal location options</old_str>
+    <new_str>## Research Phase
 - [x] Research flight options from Seattle to Japan
 - [x] Research best cities/regions to visit based on interests (historical sites, hidden gems, cultural experiences)
 - [x] Research transportation options within Japan
 - [ ] Research accommodation options within budget
-- [x] Research proposal location options
-
-## Itinerary Creation
-- [ ] Create detailed day-by-day itinerary
-- [ ] Balance activities between major attractions and hidden gems
-- [ ] Include cultural experiences (kendo, tea ceremonies, Zen meditation)
-- [ ] Include visit to Nara for deer park
-- [ ] Plan walking tours of cities
-- [ ] Identify and integrate romantic proposal location
-- [ ] Calculate estimated costs for activities, accommodations, and transportation
-
-## Travel Handbook Development
-- [ ] Create HTML structure for travel handbook
-- [ ] Add CSS styling for handbook
-- [ ] Create maps section with key locations
-- [ ] Create attraction descriptions
-- [ ] Compile essential Japanese phrases
-- [ ] Write travel tips section
-- [ ] Add budget management section
-- [ ] Test handbook functionality
-
-## Final Review
-- [ ] Review itinerary for balance and pacing
-- [ ] Ensure all interests are addressed
-- [ ] Verify budget alignment
-- [ ] Finalize proposal location recommendation
-- [ ] Proofread and finalize all documents
-</full-file-rewrite>
+- [x] Research proposal location options</new_str>
+</str-replace>
 
 ## Creating Your Itinerary