diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 4a695d78c..16ed576b5 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -60,6 +60,7 @@
 - Changed status line rendering to support left/right segment positioning with separators
 - Changed hardcoded UI symbols to use theme-configurable glyphs throughout the interface
 - Changed tree drawing characters to use theme-defined box-drawing symbols
+- Changed CLI image attachments to resize if larger than 2048px (fit within 1920x1080) and convert >2MB images to JPEG
 
 ### Removed
 
diff --git a/packages/web-ui/CHANGELOG.md b/packages/web-ui/CHANGELOG.md
index e855b8113..fa42cf9e0 100644
--- a/packages/web-ui/CHANGELOG.md
+++ b/packages/web-ui/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Resize large image attachments before sending (max 1920x1080 if dimension exceeds 2048) and convert >2MB images to JPEG
+
 ## [3.14.0] - 2026-01-04
 
 ## [3.13.1337] - 2026-01-04