diff --git a/actions/pbis.ts b/actions/pbis.ts
index d98b85b..ec09e07 100644
--- a/actions/pbis.ts
+++ b/actions/pbis.ts
@@ -7,7 +7,8 @@ import { z } from 'zod'
 import { prisma } from '@/lib/prisma'
 import { SessionData, sessionOptions } from '@/lib/session'
 import { getAccessibleProduct } from '@/lib/product-access'
-import { generateNextPbiCode, isValidCode, MAX_CODE_LENGTH, normalizeCode } from '@/lib/code'
+import { isValidCode, MAX_CODE_LENGTH, normalizeCode } from '@/lib/code'
+import { generateNextPbiCode } from '@/lib/code-server'
 
 async function getSession() {
   return getIronSession<SessionData>(await cookies(), sessionOptions)
diff --git a/actions/stories.ts b/actions/stories.ts
index 35acb1b..32f1751 100644
--- a/actions/stories.ts
+++ b/actions/stories.ts
@@ -8,7 +8,8 @@ import { prisma } from '@/lib/prisma'
 import { SessionData, sessionOptions } from '@/lib/session'
 import { getAccessibleProduct, productAccessFilter } from '@/lib/product-access'
 import { requireProductWriter } from '@/lib/auth'
-import { generateNextStoryCode, isValidCode, MAX_CODE_LENGTH, normalizeCode } from '@/lib/code'
+import { isValidCode, MAX_CODE_LENGTH, normalizeCode } from '@/lib/code'
+import { generateNextStoryCode } from '@/lib/code-server'
 
 async function getSession() {
   return getIronSession<SessionData>(await cookies(), sessionOptions)
diff --git a/lib/code-server.ts b/lib/code-server.ts
new file mode 100644
index 0000000..f78f4fa
--- /dev/null
+++ b/lib/code-server.ts
@@ -0,0 +1,35 @@
+import { prisma } from '@/lib/prisma'
+
+const STORY_AUTO_RE = /^ST-(\d+)$/
+const PBI_AUTO_RE = /^PBI-(\d+)$/
+
+function nextSequential(existing: (string | null)[], pattern: RegExp): number {
+  let max = 0
+  for (const c of existing) {
+    if (!c) continue
+    const m = c.match(pattern)
+    if (m) {
+      const n = Number.parseInt(m[1], 10)
+      if (!Number.isNaN(n) && n > max) max = n
+    }
+  }
+  return max + 1
+}
+
+export async function generateNextStoryCode(productId: string): Promise<string> {
+  const stories = await prisma.story.findMany({
+    where: { product_id: productId },
+    select: { code: true },
+  })
+  const next = nextSequential(stories.map((s) => s.code), STORY_AUTO_RE)
+  return `ST-${String(next).padStart(3, '0')}`
+}
+
+export async function generateNextPbiCode(productId: string): Promise<string> {
+  const pbis = await prisma.pbi.findMany({
+    where: { product_id: productId },
+    select: { code: true },
+  })
+  const next = nextSequential(pbis.map((p) => p.code), PBI_AUTO_RE)
+  return `PBI-${next}`
+}
diff --git a/lib/code.ts b/lib/code.ts
index 6f1fb8c..1ce387a 100644
--- a/lib/code.ts
+++ b/lib/code.ts
@@ -1,7 +1,5 @@
-import { prisma } from '@/lib/prisma'
-
-const STORY_AUTO_RE = /^ST-(\d+)$/
-const PBI_AUTO_RE = /^PBI-(\d+)$/
+// Pure helpers — safe to import from client components.
+// DB-backed helpers (generateNextStoryCode/PbiCode) live in lib/code-server.ts.
 
 const VALID_CODE_RE = /^[A-Za-z0-9._-]+$/
 
@@ -17,37 +15,6 @@ export function normalizeCode(input: string | null | undefined): string | null {
   return trimmed === '' ? null : trimmed
 }
 
-function nextSequential(existing: (string | null)[], pattern: RegExp): number {
-  let max = 0
-  for (const c of existing) {
-    if (!c) continue
-    const m = c.match(pattern)
-    if (m) {
-      const n = Number.parseInt(m[1], 10)
-      if (!Number.isNaN(n) && n > max) max = n
-    }
-  }
-  return max + 1
-}
-
-export async function generateNextStoryCode(productId: string): Promise<string> {
-  const stories = await prisma.story.findMany({
-    where: { product_id: productId },
-    select: { code: true },
-  })
-  const next = nextSequential(stories.map((s) => s.code), STORY_AUTO_RE)
-  return `ST-${String(next).padStart(3, '0')}`
-}
-
-export async function generateNextPbiCode(productId: string): Promise<string> {
-  const pbis = await prisma.pbi.findMany({
-    where: { product_id: productId },
-    select: { code: true },
-  })
-  const next = nextSequential(pbis.map((p) => p.code), PBI_AUTO_RE)
-  return `PBI-${next}`
-}
-
 export function deriveTaskCode(storyCode: string | null, indexOneBased: number): string | null {
   if (!storyCode) return null
   return `${storyCode}.${indexOneBased}`