#1:
Model: Opus 4.5 (Claude Code)
Prompt:
You are a React + Typescript developer with extensive experience in analyzing existing codebases and aiding freshly-onboarded developers in understanding the code by analyzing their needs and providing suggestions.
Do not compliment my observations or questions. Do not use conversation filler, get to the point. At the end of each of your outputs, provide an assessment for the amount of confidence you have in the information you provided, as well as your reasoning for this assessment. If you believe a follow-up question on your side would be beneficial, feel free to leave one at the end. By "follow-up question" I mean one that you believe would aid you in me arriving at a better-engineered solution, faster.
I will now provide you with the contents of src/app.tsx, the primary source file in Cloudflare's example Agents AI
app, written in React. At a high level, the app provides a chat window for talking to an AI chatbot. We are going
to be stripping it down and adjusting it to our needs.
Here are my requirements:
- I would like to replace the functionality of talking to a chatbot with the functionality of attaching a resume in PDF format and having the text be extracted, then, this text would be sent to a backend via the fetch API, and the output would be provided in the Chat window. This would proceed in a loop, with the ability to again attach a resume, have its text be extracted, sent to backend; then, the backend's output would be displayed to the user.
- The PDF would be attachable via a button in the UI. Currently, there is the
<div className="absolute bottom-0 right-0 p-2 w-fit flex flex-row justify-end">button, which is used to send a message. The "process the attached PDF" action would proceed by pressing this send button, but again, there would be the "Attach PDF" button on its left to attach the actual PDF. So, to recap: You are required to create a new "Attach PDF button" that attaches the PDF (to store in the browser's memory, whatever is standard practice). The PDF's text is only extracted when the<div className="absolute bottom-0 right-0 p-2 w-fit flex flex-row justify-end">button is pressed, and after extraction, this buttonpress causes the text to be send for processing to the backend.
Overall, I want this procedure to be more similar in style to the work of a tailor, not a renovation company's. That is, you want to identify the "seams" which you can cut in the code to change the desired functionality and not induce unnecessary breakage. We don't want to rework it all at once, "agentic" style - we want to stay in line with the code that was written, safely remove the unnecessary functionality, and then slip in our own. First, understand the entire file, then - show me what conclusions you arrive at through your analysis, and lastly: propose your changes.
#2 (follow-up to #1)
The PDF text extraction will happen client-side. Use Mozilla's pdf.js for that. The API endpoint is that of an
AWS lambda function, the JSON schema for what it accepts (inside the body, loaded in Python through
body = json.loads(event["body"])) is: body["prompt"] - the prompt, which I will preconfigure here;
body["resume-text"] - the text extracted from the resume.
Now, I have looked over your proposed changes and you may proceed with them. I will test the functionality afterwards.
#3 I believe there is one thing that we can do to improve the UX and feel of the application. When the application is processing the resume, that is - when the user hits submit with the URL and the resume, and then text is extracted and a request is sent, etc. - we would want a loading icon to display in the middle. I would like the loading icon to be composed of three square dots in the color orange. The dots change in height would represent loading. At the beginning, the left dot would grow taller, then, while it is at its highest, the second dot begins to grow in height, then, the first begins to decrease in height and when the second one is at its heighest the third one begins to increase in height. This is a classic loading icon scheme, you can think of it acting as a wave, moving to the right, with the crest of the wave corresponding to the square dot being extended in height to its maximum. I want the loading icon to be a 40 px square, when the width of the squares and the space between them as well as the maximum height achieved during loading is taken into account.
#4 Let's improve the UX, make this app shine a little bit. We now have the loading icon in the middle, let's make text appear under it, changing every 4 seconds to rotate through an array of loading captions, such as: "Scouring the web.." "Consulting applicants' advice.." "Compiling sources.." "Reviewing your resume.." These strings can easily be added to, but these 4 will do for now. They should be the same orange color as the loading icon, and the size of the text should be 12 pt.