diff --git a/skills/browser/REFERENCE.md b/skills/browser/REFERENCE.md
index 71827a4..ca06c67 100644
--- a/skills/browser/REFERENCE.md
+++ b/skills/browser/REFERENCE.md
@@ -182,6 +182,16 @@ browse select "#country" "United States"
 browse select "#tags" "javascript" "typescript"    # multi-select
 ```
 
+#### `upload <selector> <files...>`
+
+Upload file(s) to an `<input type="file">` element. Works with both local and remote Browserbase sessions (remote uses base64 injection). Supports ref-based selectors from snapshot.
+
+```bash
+browse upload "#fileUpload" ./document.pdf          # single file
+browse upload @0-5 ./photo.png                      # using ref from snapshot
+browse upload "#files" ./a.png ./b.png              # multiple files
+```
+
 #### `press <key>`
 
 Press a keyboard key or key combination.
diff --git a/skills/browser/SKILL.md b/skills/browser/SKILL.md
index 3c4e652..d1f70e2 100644
--- a/skills/browser/SKILL.md
+++ b/skills/browser/SKILL.md
@@ -80,6 +80,7 @@ browse click <ref>                       # Click element by ref from snapshot (e
 browse type <text>                       # Type text into focused element
 browse fill <selector> <value>           # Fill input and press Enter
 browse select <selector> <values...>     # Select dropdown option(s)
+browse upload <selector> <files...>      # Upload file(s) to <input type="file">
 browse press <key>                       # Press key (Enter, Tab, Escape, Cmd+A, etc.)
 browse drag <fromX> <fromY> <toX> <toY>  # Drag from one point to another
 browse scroll <x> <y> <deltaX> <deltaY> # Scroll at coordinates