Methodology

Understanding how we measure LLM impact on Git history

What Is Measured

LLM Git Inflection tracks quantitative changes in developer Git activity. We measure:

•Commits per week
•Lines added
•Lines deleted
•Changed lines (added + deleted)
•Activity frequency

No semantic code quality claims are made. We observe output volume, not correctness.

Inflection Points

Inflection points are self-declared estimates provided by users. The platform does not attempt to infer or validate them.

LLM Adoption: When the developer first began using LLM tools

90% LLM Point: When ~90% of their code was LLM-assisted

Post-90% Measurement Rule

LLM impact metrics are calculated using a consistent measurement window:

Start:

90 days after the declared 90% LLM point

Duration:

90 consecutive days

Baseline:

The immediately preceding 90-day window

Churn Adjustment

High deletion-to-addition ratios reduce uplift scores to discourage artificial inflation. This adjustment penalizes patterns where developers repeatedly add and delete the same lines to inflate metrics without meaningful progress.

Accuracy Disclaimer

All metrics are observational and based on user-declared inflection points. The service makes no claims of causality or performance guarantees.Correlation does not imply causation. Many factors affect developer productivity beyond LLM usage.