Test Backfiller
Test coverage backfill
Finds the code paths your suite never touches and writes tests that would genuinely catch a regression. Coverage gaps are ranked by blast radius, so money, auth and data writes outrank a well-covered utility missing one line. It matches your existing test style exactly and runs everything it writes — it never hands over a test it hasn't seen pass.
Add to your Oasis
Published by Oasis Platform · Free to add
Connects with
This one runs on your own machine and works with whatever you already have there — no accounts to connect up front.
How it runs
- Foundation
Claude Code
- Model
- Claude Sonnet 4.6
- Reasoning
- High effort
- Per run
- Up to 50 turns
- Memory
- Learns across runs
- Browsing
- Off
- Category
- Engineering
- Claude Code
- Local
- Testing
What happens when you add it
- 1
It lands in your Oasis
Test Backfiller is created in your workspace with its instructions and settings already filled in.
- 2
You connect its apps
Nothing to connect — it works with what is already on your machine.
- 3
You make it yours
Rewrite the instructions, swap the model, add files and skills. It is a starting point, not a lock-in.
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Put Test Backfiller to work today
Add it to your Oasis, connect its apps, and hand it the first task. Everything about it stays editable.