diff --git a/src/main.zig b/src/main.zig
index 92f9b62..59aca01 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -100,7 +100,8 @@ fn registerLuaFunctions() void {
         // User-facing functions stay global
         registerFunction("WorldMarker", @intFromPtr(&markers.luaWorldMarker));
         registerFunction("ClearWorldMarker", @intFromPtr(&markers.luaClearWorldMarker));
-        registerFunction("CanSetWorldMarkers", @intFromPtr(&markers.luaCanSetMarkers));
+        registerFunction("GetWorldMarker", @intFromPtr(&markers.luaGetWorldMarker));
+        registerFunction("CanSetWorldMarker", @intFromPtr(&markers.luaCanSetMarkers));
 
         // Internal functions in WorldMarkers table (via luaL_openlib)
         const lib = [_]lua.LuaReg{
diff --git a/src/markers/addon/WorldMarkers.lua b/src/markers/addon/WorldMarkers.lua
index 74f9fd3..a66a701 100644
--- a/src/markers/addon/WorldMarkers.lua
+++ b/src/markers/addon/WorldMarkers.lua
@@ -19,7 +19,7 @@ BINDING_HEADER_WORLDMARKERS = "World Markers"
 -- Permission model: ALL permission checks are enforced DLL-side.
 --   WorldMarker/ClearWorldMarker: DLL checks local player is leader/assist.
 --   SetMarkerDef/ClearMarkerDef: DLL checks sender name against roster.
---   CanSetWorldMarkers(): DLL returns 1 if local player has permission.
+--   CanSetWorldMarker(): DLL returns 1 if local player has permission.
 -- =============================================================================
 
 local MSG_PREFIX = "WMark"
@@ -109,7 +109,7 @@ local function broadcastAllDefs()
     local ch = getChannel()
     if not ch then return end
     for i = 1, NUM_MARKERS do
-        local x, y, z, areaId = WorldMarkers.GetMarkerDef(i)
+        local x, y, z, areaId = GetWorldMarker(i)
         if x then
             local msg = "SF:" .. i .. ":" .. x .. ":" .. y .. ":" .. z .. ":" .. areaId
             SendAddonMessage(MSG_PREFIX, msg, ch)
@@ -155,23 +155,21 @@ end
 
 local RawWorldMarker = WorldMarker
 function WorldMarker(index, ...)
-    local ok = RawWorldMarker(index, unpack(arg))
-    if not ok then
+    local x, y, z, areaId = RawWorldMarker(index, unpack(arg))
+    if x == nil then
         showDenyMessage()
         return
     end
-    if ok < 0 then
+    if x < 0 and (y == nil) then
         showFailMessage()
         return
     end
     denyCount = 0
     local ch = getChannel()
     if ch then
-        local x, y, z, areaId = WorldMarkers.GetMarkerDef(index)
-        if x then
-            broadcastPlace(index, x, y, z, areaId)
-        end
+        broadcastPlace(index, x, y, z, areaId)
     end
+    return x, y, z, areaId
 end
 
 local RawClearWorldMarker = ClearWorldMarker
@@ -222,7 +220,7 @@ local function onAddonMessage(prefix, message, channel, sender)
     local cmd = parts[1]
 
     if cmd == "SR" then
-        if CanSetWorldMarkers() then
+        if CanSetWorldMarker() then
             broadcastAllDefs()
         end
         return
@@ -266,7 +264,7 @@ local function broadcastSyncRequest()
     local ch = getChannel()
     if not ch then return end
     startSyncing()
-    local cmd = CanSetWorldMarkers() and "LSR" or "SR"
+    local cmd = CanSetWorldMarker() and "LSR" or "SR"
     SendAddonMessage(MSG_PREFIX, cmd, ch)
 end
 
@@ -310,7 +308,7 @@ rosterTimer:SetScript("OnUpdate", function()
         rosterTimer:Hide()
         rosterTimer.pending = false
         rosterTimer.extensions = 0
-        if CanSetWorldMarkers() then
+        if CanSetWorldMarker() then
             broadcastAllDefs()
         end
     end
diff --git a/src/markers/markers.zig b/src/markers/markers.zig
index 4a83f4a..f008b31 100644
--- a/src/markers/markers.zig
+++ b/src/markers/markers.zig
@@ -525,8 +525,8 @@ fn clearAllMarkers() void {
 // Lua API
 // =============================================================================
 
-/// Lua: local ok = WorldMarker(index [, x, y, z | "unitId"])
-///   Returns 1 on success, nil on permission denied, -1 on placement failure.
+/// Lua: local x,y,z,areaId = WorldMarker(index [, x, y, z | "unitId"])
+///   Returns x,y,z,areaId on success, nil on permission denied, -1 on placement failure.
 pub fn luaWorldMarker(L: lua.State) callconv(.c) u32 {
     if (!canSetMarkers()) {
         con.print("[worldmarkers] WorldMarker: no permission\n");
@@ -553,7 +553,10 @@ pub fn luaWorldMarker(L: lua.State) callconv(.c) u32 {
         const x: f32 = @floatCast(lua.tonumber(L, 2));
         const y: f32 = @floatCast(lua.tonumber(L, 3));
         const z: f32 = @floatCast(lua.tonumber(L, 4));
-        _ = placeMarker(index, .{ .x = x, .y = y, .z = z });
+        if (!placeMarker(index, .{ .x = x, .y = y, .z = z })) {
+            lua.pushnumber(L, -1.0);
+            return 1;
+        }
     } else if (nargs >= 2 and lua.isstring(L, 2)) {
         const unit_id = lua.tostring(L, 2) orelse {
             con.print("[worldmarkers] WorldMarker: invalid unit string\n");
@@ -565,18 +568,23 @@ pub fn luaWorldMarker(L: lua.State) callconv(.c) u32 {
             lua.pushnumber(L, -1.0);
             return 1;
         };
-        _ = placeMarker(index, pos);
+        if (!placeMarker(index, pos)) {
+            lua.pushnumber(L, -1.0);
+            return 1;
+        }
     } else {
         const pos = getCursorTerrainPosition() orelse {
             con.print("[worldmarkers] no terrain under cursor\n");
             lua.pushnumber(L, -1.0);
             return 1;
         };
-        _ = placeMarker(index, pos);
+        if (!placeMarker(index, pos)) {
+            lua.pushnumber(L, -1.0);
+            return 1;
+        }
     }
 
-    lua.pushnumber(L, 1.0);
-    return 1;
+    return pushMarkerDef(L, index);
 }
 
 /// Lua: local ok = ClearWorldMarker([index])
@@ -756,16 +764,8 @@ pub fn luaClearMarkerDef(L: lua.State) callconv(.c) u32 {
     return 0;
 }
 
-/// Lua: local x, y, z, areaId = GetMarkerDef(index)
-/// Returns position and area ID for an active marker def, or nil if inactive.
-pub fn luaGetMarkerDef(L: lua.State) callconv(.c) u32 {
-    const nargs = lua.gettop(L);
-    if (nargs < 1 or !lua.isnumber(L, 1)) return 0;
-
-    const raw_index = @as(i32, @intFromFloat(lua.tonumber(L, 1)));
-    if (raw_index < 1 or raw_index > NUM_MARKERS) return 0;
-    const index: usize = @intCast(raw_index - 1);
-
+/// Push x, y, z, areaId for a marker slot, or return 0 (nil) if inactive.
+fn pushMarkerDef(L: lua.State, index: usize) u32 {
     if (!marker_defs[index].active) return 0;
 
     lua.pushnumber(L, @floatCast(marker_defs[index].pos.x));
@@ -775,6 +775,24 @@ pub fn luaGetMarkerDef(L: lua.State) callconv(.c) u32 {
     return 4;
 }
 
+/// Lua: local x, y, z, areaId = GetWorldMarker(index)
+/// Returns position and area ID for an active marker, or nil if empty.
+pub fn luaGetWorldMarker(L: lua.State) callconv(.c) u32 {
+    const nargs = lua.gettop(L);
+    if (nargs < 1 or !lua.isnumber(L, 1)) return 0;
+
+    const raw_index = @as(i32, @intFromFloat(lua.tonumber(L, 1)));
+    if (raw_index < 1 or raw_index > NUM_MARKERS) return 0;
+
+    return pushMarkerDef(L, @intCast(raw_index - 1));
+}
+
+/// Lua: local x, y, z, areaId = WorldMarkers.GetMarkerDef(index)
+/// Internal alias kept for addon sync protocol compatibility.
+pub fn luaGetMarkerDef(L: lua.State) callconv(.c) u32 {
+    return luaGetWorldMarker(L);
+}
+
 /// Lua: local ok = CanSetWorldMarkers()
 /// Returns 1 if the local player has permission (leader/assist), nil otherwise.
 /// Used by the addon for broadcast/sync decisions.