diff --git a/inventoryClient.lua b/inventoryClient.lua
index 63a4fb9..61ee250 100644
--- a/inventoryClient.lua
+++ b/inventoryClient.lua
@@ -42,7 +42,6 @@ end
 
 -- Override dofile to load modules into our _ENV so they inherit
 -- Opus's require/package (CC:Tweaked dofile uses _G instead).
-local _ccDofile = dofile
 local function dofile(path)                     -- luacheck: ignore
     local fn, err = loadfile(path, nil, _ENV)
     if fn then return fn()
@@ -56,6 +55,7 @@ local CLIENT_CONFIG_FILE = _configPath(".client_config")
 -------------------------------------------------
 
 local log = dofile(_path("lib/log.lua"))
+local ui  = dofile(_path("lib/ui.lua"))
 
 local function loadConfig()
     if not fs.exists(CLIENT_CONFIG_FILE) then return end
@@ -184,46 +184,11 @@ local function getItemTotal(itemName)
     return 0
 end
 
-function ops.getRecipeIngredients(recipe)
-    local ingredients = {}
-    for _, item in ipairs(recipe.grid) do
-        if item then
-            ingredients[item] = (ingredients[item] or 0) + 1
-        end
-    end
-    return ingredients
-end
-
-function ops.canCraftRecipe(recipe)
-    local ingredients = ops.getRecipeIngredients(recipe)
-    for itemName, needed in pairs(ingredients) do
-        if (getItemTotal(itemName) or 0) < needed then return false end
-    end
-    return true
-end
-
-function ops.maxCraftBatches(recipe)
-    local ingredients = ops.getRecipeIngredients(recipe)
-    local minBatches = math.huge
-    for itemName, needed in pairs(ingredients) do
-        local batches = math.floor((getItemTotal(itemName) or 0) / needed)
-        if batches < minBatches then minBatches = batches end
-    end
-    if minBatches == math.huge then return 0 end
-    return minBatches
-end
-
-function ops.getMissingIngredients(recipe)
-    local ingredients = ops.getRecipeIngredients(recipe)
-    local missing = {}
-    for itemName, needed in pairs(ingredients) do
-        local have = getItemTotal(itemName) or 0
-        if have < needed then
-            table.insert(missing, { name = itemName, have = have, need = needed })
-        end
-    end
-    return missing
-end
+-- Delegate recipe helpers to shared lib/ui.lua with local stock lookup.
+function ops.getRecipeIngredients(recipe) return ui.getRecipeIngredients(recipe) end
+function ops.canCraftRecipe(recipe)       return ui.canCraftRecipe(recipe, getItemTotal) end
+function ops.maxCraftBatches(recipe)      return ui.maxCraftBatches(recipe, getItemTotal) end
+function ops.getMissingIngredients(recipe) return ui.getMissingIngredients(recipe, getItemTotal) end
 
 function ops.orderItem(itemName, amount)
     sendToMaster({