WHOOP for AI-Assisted Development

There is no ETA in vibe coding. We fix that.

Claude thinks your project takes 2 months. It takes 16 hours of vibe coding + 2 weeks of debugging. CodeStrain knows the difference.

Join the Waitlist View on GitHub
19%
Slower with AI tools — yet developers believe they're 20% faster
METR RCT, 2025 · n=16 devs, 246 tasks
43pt
Perception gap — the difference between how fast you feel and how fast you are
METR RCT, 2025 · arXiv:2507.09089
83%
Of software developers report experiencing burnout
Haystack/Survation, 2021

Know your actual output

Three core metrics that turn vibe coding chaos into measurable, recoverable work.

DRS Score

Your Developer Recovery Score. A 0-100 composite of strain, recovery, and readiness — modeled after WHOOP. Green means go. Red means step away.

strain 0-21

ETA Predictions

Phase-aware ML predictions. You estimate generation time. Our model learns your personal multipliers across planning, debugging, iteration, and integration.

6-phase model

Break Personas

Context-aware break nudges with personality. Drill Sergeant, Gentle Princess, Sarcastic AI. Pick the character that actually makes you stop coding at 3 AM.

5 personas

How it works

1

Install the menu bar app

macOS native. Watches your Claude Code sessions via JSONL logs. Zero configuration.

2

Code like you always do

CodeStrain runs silently in the background. No workflow changes. No extra clicks.

3

Get your DRS

Recovery score, predicted ETAs, and smart break nudges. All data stays on your Mac.

Get early access

Free tier is fully local, no server needed. PRO adds ML predictions and encrypted cloud sync.

No spam. Unsubscribe anytime. Privacy Policy