diff --git a/icons/shulker_peek.png b/icons/shulker_peek.png
new file mode 100644
index 0000000..7f88129
Binary files /dev/null and b/icons/shulker_peek.png differ
diff --git a/mods/shulker_peek.toml b/mods/shulker_peek.toml
new file mode 100644
index 0000000..8f153c8
--- /dev/null
+++ b/mods/shulker_peek.toml
@@ -0,0 +1,31 @@
+id = "shulker_peek"
+kind = "native-mod"
+name = "ShulkerPeek"
+summary = "A shulker box's contents as a 9 x 3 grid in its tooltip."
+description = """
+Hover a shulker box to see what's inside: its 27 slots appear as a 9 x 3 grid right in the tooltip, laid out exactly like the box's own screen, with item icons and stack counts.
+
+- Works with the plain shulker box and all 16 dyed ones, whether empty, partly filled or full.
+- Works on every screen with item tooltips: your inventory, chests and other containers, the creative inventory, the item panel, chat item links and trading.
+- Keeps the tooltip's usual lines (name, lore, "64 x Diamond"...); the grid goes underneath.
+- Respects hidden tooltips: a box whose `minecraft:tooltip_display` hides its contents stays hidden.
+- Settings in Options > Mods > ShulkerPeek > Settings: show the grid always or only while holding Shift, show a grid for empty boxes, and tint the grid with the box's dye colour.
+- Uses your resource pack's own shulker box texture.
+
+Works in single player and on LAN worlds you host. Horizon currently leaves a box's contents out of what its built-in server sends to the game window, which is why even the "64 x Diamond" lines are missing there. ShulkerPeek sends the contents the way a vanilla server does. On vanilla servers the grid works too; on other Horizon servers without the mod, boxes look empty.
+
+It never changes items, inventories or worlds. Turn it off any time in Options > Mods.
+
+This is a native mod built for Horizon Nightly 2026-10-29 (`5e391eb`). It builds together with Horizon's official native mods (FPS Counter, Zoom, Minimap, Recipes and others)."""
+authors = ["vstxx"]
+owners = ["vstxx"]
+license = "MIT"
+source = "https://github.com/vstxx/shulkerpeek"
+icon = "icons/shulker_peek.png"
+
+[[versions]]
+version = "0.1.0"
+published = "2026-10-29"
+game = "26.3"
+file = "shulker_peek-0.1.0.hnmod"
+sha256 = "e4e33cb698d91042b2ed2f93a1c935f279d16d83988115d53c0f33530cabeab5"