diff --git a/XEOSIterativeSegmentation.s4ext b/XEOSIterativeSegmentation.s4ext
new file mode 100644
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+++ b/XEOSIterativeSegmentation.s4ext
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+scm git
+scmurl https://github.com/YazdanSalimi/XEOSIterativeSegmentation.git
+scmrevision main
+
+build_subdirectory .
+
+homepage https://github.com/YazdanSalimi/XEOSIterativeSegmentation
+category Quantification
+iconurl
+description Iterative PET lesion segmentation with plateau-detection thresholding, interactive convergence curve, MIP GIF export, and Excel metrics. Loads DICOM directly in 3D Slicer.
+contributors Yazdan Salimi
+status
+depends NA