chore: import upstream snapshot with attribution

apps/sim/tools/grain/create_hook.ts

@@ -0,0 +1,104 @@
+import type { GrainCreateHookParams, GrainCreateHookResponse } from '@/tools/grain/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const grainCreateHookTool: ToolConfig<GrainCreateHookParams, GrainCreateHookResponse> = {
+  id: 'grain_create_hook',
+  name: 'Grain Create Webhook',
+  description: 'Create a webhook to receive recording events',
+  version: '1.0.0',
+
+  params: {
+    apiKey: {
+      type: 'string',
+      required: true,
+      visibility: 'user-only',
+      description: 'Grain API key (Personal Access Token)',
+    },
+    hookUrl: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Webhook endpoint URL (e.g., "https://example.com/webhooks/grain")',
+    },
+    viewId: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Grain view ID from GET /_/public-api/views',
+    },
+    actions: {
+      type: 'array',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Optional list of actions to subscribe to: added, updated, removed',
+      items: {
+        type: 'string',
+      },
+    },
+  },
+
+  request: {
+    url: 'https://api.grain.com/_/public-api/hooks',
+    method: 'POST',
+    headers: (params) => ({
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${params.apiKey}`,
+    }),
+    body: (params) => {
+      const body: Record<string, any> = {
+        version: 2,
+        hook_url: params.hookUrl,
+        view_id: params.viewId,
+      }
+      if (params.actions && params.actions.length > 0) {
+        body.actions = params.actions
+      }
+
+      return body
+    },
+  },
+
+  transformResponse: async (response) => {
+    const data = await response.json()
+
+    if (!response.ok) {
+      throw new Error(data.error || data.message || 'Failed to create webhook')
+    }
+
+    if (!data?.id) {
+      throw new Error('Grain webhook created but response did not include a webhook id')
+    }
+
+    return {
+      success: true,
+      output: data,
+    }
+  },
+
+  outputs: {
+    id: {
+      type: 'string',
+      description: 'Hook UUID',
+    },
+    enabled: {
+      type: 'boolean',
+      description: 'Whether hook is active',
+    },
+    hook_url: {
+      type: 'string',
+      description: 'The webhook URL',
+    },
+    view_id: {
+      type: 'string',
+      description: 'Grain view ID for the webhook',
+    },
+    actions: {
+      type: 'array',
+      description: 'Configured actions for the webhook',
+    },
+    inserted_at: {
+      type: 'string',
+      description: 'ISO8601 creation timestamp',
+    },
+  },
+}