fix(custom-tools): add composite index on custom tool names & workspace id (#2131)

packages/db/migrations/0113_calm_tiger_shark.sql

@@ -0,0 +1,10 @@
+-- Step 1: Convert non-UUID IDs to UUIDs (preserve existing UUIDs)
+-- This allows same title in different workspaces by removing function-name-based IDs
+UPDATE "custom_tools"
+SET "id" = gen_random_uuid()::text
+WHERE workspace_id IS NOT NULL  -- Only update workspace-scoped tools
+  AND "id" !~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$';  -- Skip if already UUID
+
+-- Step 2: Add composite unique constraint on (workspace_id, title)
+-- This enforces uniqueness per workspace, not globally
+CREATE UNIQUE INDEX "custom_tools_workspace_title_unique" ON "custom_tools" USING btree ("workspace_id","title");

packages/db/migrations/meta/_journal.json

@@ -785,6 +785,13 @@
       "when": 1764095386986,
       "tag": "0112_tired_blink",
       "breakpoints": true
+    },
+    {
+      "idx": 113,
+      "version": "7",
+      "when": 1764370369484,
+      "tag": "0113_calm_tiger_shark",
+      "breakpoints": true
     }
   ]
 }

packages/db/schema.ts

@@ -656,6 +656,10 @@ export const customTools = pgTable(
   },
   (table) => ({
     workspaceIdIdx: index('custom_tools_workspace_id_idx').on(table.workspaceId),
+    workspaceTitleUnique: uniqueIndex('custom_tools_workspace_title_unique').on(
+      table.workspaceId,
+      table.title
+    ),
   })
 )