diff --git a/TODO.md b/TODO.md
index 9132f94..a502922 100644
--- a/TODO.md
+++ b/TODO.md
@@ -4,6 +4,10 @@ Remaining tasks sorted by priority for a working 1.0 release.
 
 ## P0: Critical for 1.0
 
+### Image Processing
+- [ ] Add WebP encoding support (currently returns error)
+- [ ] Add AVIF encoding support (currently returns error)
+
 ### Manual Testing (verify auth/encrypted URLs work)
 - [ ] Manual test: visit `/`, see login form
 - [ ] Manual test: enter wrong key, see error