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Implements AI-driven performance regression detection system that analyzes performance metric trends and code changes to detect regressions before they impact users. Integrates with CI/CD pipeline for automated detection.#706

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@aliybabsi

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Closes #624
Features:

  • Statistical baseline calculation with rolling 14-day window
  • Z-score deviation analysis (2.5σ threshold)
  • Confidence scoring and severity classification
  • Git commit correlation with PII sanitization
  • IndexedDB persistence for baselines
  • AlertCenter integration for warnings
  • CI integration with automatic build failures
  • 80% detection rate validated via property-based tests

Implementation:

  • 6 core modules (baseline, detector, correlation, storage, warnings, API)
  • 6 comprehensive test suites (90%+ coverage)
  • CI script for Lighthouse metric analysis
  • Complete documentation and developer guides

Testing:

  • Unit tests for all components
  • Integration tests for end-to-end workflow
  • Property-based tests validating 80% detection rate
  • Security tests for PII sanitization

Implements AI-driven performance regression detection system that analyzes
performance metric trends and code changes to detect regressions before
they impact users. Integrates with CI/CD pipeline for automated detection.

Features:
- Statistical baseline calculation with rolling 14-day window
- Z-score deviation analysis (2.5σ threshold)
- Confidence scoring and severity classification
- Git commit correlation with PII sanitization
- IndexedDB persistence for baselines
- AlertCenter integration for warnings
- CI integration with automatic build failures
- 80% detection rate validated via property-based tests

Implementation:
- 6 core modules (baseline, detector, correlation, storage, warnings, API)
- 6 comprehensive test suites (90%+ coverage)
- CI script for Lighthouse metric analysis
- Complete documentation and developer guides

Testing:
- Unit tests for all components
- Integration tests for end-to-end workflow
- Property-based tests validating 80% detection rate
- Security tests for PII sanitization

No new dependencies required - uses existing TensorFlow.js infrastructure,
IndexedDB storage, and AlertCenter patterns.

Closes Nanle-code#624
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@drips-wave

drips-wave Bot commented Jul 24, 2026

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@aliybabsi Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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Predictive Performance Regression Detection

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