CodeRabbit Secure Delta Scans Keep Coverage Current

This is the right model for continuous AI security: establish an expensive baseline, then maintain it incrementally. The important caveat is that coverage targets and billing guardrails require careful configuration.

• –Scans run after merges and can trigger by commit count, elapsed days, or coverage percentage.
• –A full Deep Scan remains necessary at least every 30 days; deltas are not a replacement for a fresh baseline.
• –If more than 40% of scanned source files change, CodeRabbit requires a full scan instead.
• –Cost depends on changed, stale, and unverified code, while automation still needs budget for the full-scan estimate.
• –The feature is especially useful for teams shipping AI-generated code rapidly, where stale security evidence can accumulate quickly.