Fix a broken API website
A published walkthrough shows the Reddit post says Someone used Claude Cowork on their laptop for technical tasks and let it inspect and control work directly, describing it as like a competent IT person remote-controlling the computer. For this case, they say it went into the code of their API website and fixed issues manually after Replit’s agent kept breaking simple additions and not understanding the site. The stated result was that the API website got fixed after repeated problems with the Replit agent.
- Agent or tool
- Claude Cowork
- Topic
- Software Development
- Reported on
- Added
- 2026-10-15
Why it matters
Coding agents are moving from autocomplete to doing whole tasks: reading a codebase, making a plan and changing many files. This case is a concrete example of where that works in practice. It is one of 221 sightings filed under Software Development on Agent Sightings (number 179 by interest), and one of 42 involving Claude Cowork.
How you could try it
Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into Claude Cowork or any similar agent and adjust the details to your situation.
In this repo, fix a broken API website. Read relevant code, apply a minimal patch, run available checks, and summarize the diff. Stop before merge or deploy.
The prompt breaks down into 3 steps you can check as the agent works:
- In this repo, fix a broken API website.
- Read relevant code, apply a minimal patch, run available checks, and summarize the diff.
- Stop before merge or deploy.
Tip: Work on a fresh branch, ask for a plan before edits, and review the diff and test results before merging.
Source
Read the original first-hand account on Reddit: https://www.reddit.com/r/ClaudeAI/comments/1rok3g8/claude_cowork_is_magical. Our summary is a paraphrase; details are in the source.
Built an AI agent? Feature your agent on Agent Sightings, free submission or a featured spot.
Browse more like this
Related sightings
- A contractor's personal Claude Code agent allegedly ran inside a secure Pentagon system for two months
- Claude Code's 3-word status line reportedly burns 15 to 20% of tokens
- Rocket Money on building agents that fix their own code
- Office Hours: Asynchronous coding and the end of the IDE with Spotify
- Fill out insurance paperwork from hospital records
- Do bookkeeping and tax prep from a folder of documents