chore: import upstream snapshot with attribution

apps/sim/lib/api/contracts/tools/custom.ts

@@ -0,0 +1,84 @@
+import { z } from 'zod'
+import { defineRouteContract } from '@/lib/api/contracts/types'
+
+export const customToolFunctionParametersSchema = z
+  .object({
+    type: z.string(),
+    properties: z.record(z.string(), z.unknown()),
+    required: z.array(z.string()).optional(),
+  })
+  .passthrough()
+
+export const customToolSchemaSchema = z
+  .object({
+    type: z.literal('function'),
+    function: z
+      .object({
+        name: z.string().min(1, 'Function name is required'),
+        description: z.string().optional(),
+        parameters: customToolFunctionParametersSchema,
+      })
+      .passthrough(),
+  })
+  .passthrough()
+
+export const customToolUpsertItemSchema = z.object({
+  id: z.string().optional(),
+  title: z.string().min(1, 'Tool title is required'),
+  schema: customToolSchemaSchema,
+  code: z.string(),
+})
+
+export const customToolsQuerySchema = z.object({
+  workspaceId: z.string().optional(),
+  workflowId: z.string().optional(),
+})
+
+export const upsertCustomToolsBodySchema = z.object({
+  tools: z.array(customToolUpsertItemSchema),
+  workspaceId: z.string().optional(),
+  source: z.enum(['settings', 'tool_input']).optional(),
+})
+
+export const deleteCustomToolQuerySchema = z.object({
+  id: z.string().min(1),
+  workspaceId: z.string().optional(),
+  source: z.enum(['settings', 'tool_input']).optional().catch(undefined),
+})
+
+export const listCustomToolsContract = defineRouteContract({
+  method: 'GET',
+  path: '/api/tools/custom',
+  query: customToolsQuerySchema,
+  response: {
+    mode: 'json',
+    schema: z.object({
+      data: z.array(z.unknown()),
+    }),
+  },
+})
+
+export const upsertCustomToolsContract = defineRouteContract({
+  method: 'POST',
+  path: '/api/tools/custom',
+  body: upsertCustomToolsBodySchema,
+  response: {
+    mode: 'json',
+    schema: z.object({
+      success: z.literal(true),
+      data: z.array(z.unknown()),
+    }),
+  },
+})
+
+export const deleteCustomToolContract = defineRouteContract({
+  method: 'DELETE',
+  path: '/api/tools/custom',
+  query: deleteCustomToolQuerySchema,
+  response: {
+    mode: 'json',
+    schema: z.object({
+      success: z.literal(true),
+    }),
+  },
+})