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Engineering acceleration
The named mechanism behind VC Deal Flow Signal. Five deterministic steps: (1) pull 14-day commit volume per organization from the public GitHub REST API with the bot filter applied, (2) compute the percentage delta against the prior 14-day window, (3) require two-period confirmation before a breakout becomes actionable, (4) score contributor concentration with the Gini coefficient, (5) classify the breakout into one of four signal types (Hiring Burst, Infrastructure Buildout, Deploy Spike, Framework Migration). The engine is published, sourced, and reproducible — see /mechanism for the full formula and the SSRN proof panel. The engine is the formal implementation of the broader category: Code-Side Sourcing.
Metrics, signal types, and decision rules from the methodology.
The total number of commits to a startup's most active public GitHub repository over a rolling 14-day window.
The percentage change in commit velocity compared to the preceding 14-day window.
A sustained increase in a startup's engineering output relative to its own historical baseline.
Any data-driven indicator that helps an investor identify a promising startup before traditional deal sourcing channels surface it.
The change in the number of unique contributors to a startup's GitHub repository over time.
A signal type indicating that a startup's contributor growth rate exceeds 50% in a short window.
A signal type indicating that a startup has created three or more new public repositories in 30 days.
A signal type indicating that a startup's commit velocity has increased 150% or more versus its baseline.
This definition is published under CC BY 4.0. Cite as:
The Data Nerd. "Commit-Velocity Acceleration Engine." VC Deal Flow Signal Glossary, https://signals.gitdealflow.com/define/commit-velocity-acceleration-engine.
The free Acceleration Watch turns terms like Commit-Velocity Acceleration Engine into five named, accelerating startups every Sunday — translated into plain English, 21 to 47 days before the deck circulates. No code-reading, no card.