juliusbrussee/caveman
Compressed caveman-style prose for AI coding agents — cuts ~65% output tokens while keeping full technical accuracy
96
100%
Does it follow best practices?
Impact
96%
1.00xAverage score across 38 eval scenarios
Passed
No known issues
task.mdevals/scenario-15/
Java Thread Safety
Problem
This Java singleton is used in a multi-threaded web server, and users are occasionally seeing each other's data:
public class UserContext {
private static UserContext instance;
private String currentUserId;
public static UserContext getInstance() {
if (instance == null) instance = new UserContext();
return instance;
}
public void setUser(String userId) { this.currentUserId = userId; }
public String getUser() { return this.currentUserId; }
}Identify the bugs and provide the fix.
evals
scenario-1
scenario-2
scenario-3
scenario-4
scenario-5
scenario-6
scenario-7
scenario-8
scenario-9
scenario-10
scenario-11
scenario-12
scenario-13
scenario-14
scenario-15
scenario-16
scenario-17
scenario-18
scenario-19
scenario-20
scenario-21
scenario-22
scenario-23
scenario-24
scenario-25
scenario-26
scenario-27
scenario-28
scenario-29
scenario-30
scenario-31
scenario-32
scenario-33
scenario-34
scenario-35
scenario-36
scenario-37