diff --git a/mcp-gateway/erpnext-mcp/src/tools/core.ts b/mcp-gateway/erpnext-mcp/src/tools/core.ts
deleted file mode 100644
index b762255..0000000
--- a/mcp-gateway/erpnext-mcp/src/tools/core.ts
+++ /dev/null
@@ -1,454 +0,0 @@
-import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
-import { ERPNextClient, truncateResponse, formatDocumentMarkdown, formatListMarkdown } from "../services/erpnext-client.js";
-import {
-  ListDocumentsSchema,
-  GetDocumentSchema,
-  CreateDocumentSchema,
-  UpdateDocumentSchema,
-  DeleteDocumentSchema,
-  SubmitDocumentSchema,
-  CancelDocumentSchema,
-  SearchLinkSchema,
-  GetCountSchema,
-  CallMethodSchema,
-  GetDocTypeMetaSchema,
-  RunReportSchema,
-  BulkUpdateSchema,
-  WorkflowActionSchema,
-} from "../schemas/common.js";
-
-export function registerCoreTools(server: McpServer, client: ERPNextClient): void {
-
-  // ─── 1. List Documents ─────────────────────────────────
-  server.registerTool(
-    "erpnext_list_documents",
-    {
-      title: "List ERPNext Documents",
-      description: `List documents of any DocType with filtering, sorting, pagination and field selection.
-
-Args:
-  - doctype: DocType name (e.g. "Sales Order", "Customer", "Item")
-  - fields: Array of field names to return (default: ["name"])
-  - filters: Array of [field, operator, value] tuples (e.g. [["status","=","Open"]])
-  - order_by: Sort string (e.g. "modified desc")
-  - group_by: Group results by field
-  - limit: Max results (1-100, default 20)
-  - offset: Skip N results for pagination
-
-Returns: Paginated list with total count, items array, and pagination metadata.
-
-Examples:
-  - List open sales orders: doctype="Sales Order", filters=[["status","=","To Deliver and Bill"]]
-  - List customers: doctype="Customer", fields=["name","customer_name","territory"]
-  - List items by group: doctype="Item", filters=[["item_group","=","Products"]]`,
-      inputSchema: ListDocumentsSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const result = await client.listDocuments(params.doctype, {
-          fields: params.fields,
-          filters: params.filters?.map(([f, op, val]) => [params.doctype, f, op, val as string]),
-          order_by: params.order_by,
-          group_by: params.group_by,
-          limit_start: params.offset,
-          limit_page_length: params.limit,
-        });
-
-        const text = formatListMarkdown(result.items, params.doctype, result);
-        return { content: [{ type: "text", text: truncateResponse(text) }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 2. Get Document ───────────────────────────────────
-  server.registerTool(
-    "erpnext_get_document",
-    {
-      title: "Get ERPNext Document",
-      description: `Retrieve a single document by DocType and name with all or selected fields.
-
-Args:
-  - doctype: DocType name
-  - name: Document name/ID
-  - fields: Optional array of specific fields to return
-
-Returns: Full document data including child tables.`,
-      inputSchema: GetDocumentSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const doc = await client.getDocument(params.doctype, params.name, params.fields);
-        const text = formatDocumentMarkdown(doc, params.doctype);
-        return { content: [{ type: "text", text: truncateResponse(text) }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 3. Create Document ────────────────────────────────
-  server.registerTool(
-    "erpnext_create_document",
-    {
-      title: "Create ERPNext Document",
-      description: `Create a new document of any DocType.
-
-Args:
-  - doctype: DocType name
-  - data: Object with field values. For child tables, pass array of objects under the table fieldname.
-
-Returns: Created document with assigned name.
-
-Examples:
-  - Create customer: doctype="Customer", data={"customer_name":"Acme Corp","customer_type":"Company","customer_group":"Commercial","territory":"All Territories"}
-  - Create item: doctype="Item", data={"item_code":"ITEM-001","item_name":"Widget","item_group":"Products","stock_uom":"Nos"}`,
-      inputSchema: CreateDocumentSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: false, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const doc = await client.createDocument(params.doctype, params.data);
-        return { content: [{ type: "text", text: `Created ${params.doctype}: ${doc.name}\n\n${formatDocumentMarkdown(doc, params.doctype)}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 4. Update Document ────────────────────────────────
-  server.registerTool(
-    "erpnext_update_document",
-    {
-      title: "Update ERPNext Document",
-      description: `Update an existing document. Only pass the fields you want to change (PATCH semantics).
-
-Args:
-  - doctype: DocType name
-  - name: Document name/ID
-  - data: Object with fields to update
-
-Returns: Updated document.`,
-      inputSchema: UpdateDocumentSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const doc = await client.updateDocument(params.doctype, params.name, params.data);
-        return { content: [{ type: "text", text: `Updated ${params.doctype}: ${params.name}\n\n${formatDocumentMarkdown(doc, params.doctype)}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 5. Delete Document ────────────────────────────────
-  server.registerTool(
-    "erpnext_delete_document",
-    {
-      title: "Delete ERPNext Document",
-      description: `Permanently delete a document. This cannot be undone.
-
-Args:
-  - doctype: DocType name
-  - name: Document name/ID`,
-      inputSchema: DeleteDocumentSchema,
-      annotations: { readOnlyHint: false, destructiveHint: true, idempotentHint: false, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        await client.deleteDocument(params.doctype, params.name);
-        return { content: [{ type: "text", text: `Deleted ${params.doctype}: ${params.name}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 6. Submit Document ────────────────────────────────
-  server.registerTool(
-    "erpnext_submit_document",
-    {
-      title: "Submit ERPNext Document",
-      description: `Submit a submittable document (sets docstatus=1). Used for Sales Orders, Purchase Orders, Invoices, Journal Entries, etc. Submitted documents are locked from editing.
-
-Args:
-  - doctype: DocType name
-  - name: Document name/ID`,
-      inputSchema: SubmitDocumentSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const doc = await client.submitDocument(params.doctype, params.name);
-        return { content: [{ type: "text", text: `Submitted ${params.doctype}: ${params.name}\n\n${formatDocumentMarkdown(doc, params.doctype)}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 7. Cancel Document ────────────────────────────────
-  server.registerTool(
-    "erpnext_cancel_document",
-    {
-      title: "Cancel ERPNext Document",
-      description: `Cancel a submitted document (sets docstatus=2). Creates reversal entries where applicable (e.g. GL entries for invoices).
-
-Args:
-  - doctype: DocType name
-  - name: Document name/ID`,
-      inputSchema: CancelDocumentSchema,
-      annotations: { readOnlyHint: false, destructiveHint: true, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const doc = await client.cancelDocument(params.doctype, params.name);
-        return { content: [{ type: "text", text: `Cancelled ${params.doctype}: ${params.name}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 8. Search Link ────────────────────────────────────
-  server.registerTool(
-    "erpnext_search_link",
-    {
-      title: "Search ERPNext Link",
-      description: `Search for documents by text — the same search used in Link fields across ERPNext. Returns name + description pairs.
-
-Args:
-  - doctype: DocType to search in
-  - txt: Search text
-  - filters: Optional additional filters
-  - page_length: Max results (default 20)
-
-Examples:
-  - Find customers matching "acme": doctype="Customer", txt="acme"
-  - Find items matching "widget": doctype="Item", txt="widget"`,
-      inputSchema: SearchLinkSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const results = await client.searchLink(
-          params.doctype, params.txt, params.filters, params.page_length
-        );
-        const text = results.length
-          ? results.map((r) => `- **${r.value}** — ${r.description || ""}`).join("\n")
-          : `No ${params.doctype} found matching "${params.txt}"`;
-        return { content: [{ type: "text", text }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 9. Get Count ──────────────────────────────────────
-  server.registerTool(
-    "erpnext_get_count",
-    {
-      title: "Count ERPNext Documents",
-      description: `Get the total count of documents matching optional filters.
-
-Args:
-  - doctype: DocType name
-  - filters: Optional [field, operator, value] tuples
-
-Examples:
-  - Count open sales orders: doctype="Sales Order", filters=[["status","=","To Deliver and Bill"]]
-  - Count all customers: doctype="Customer"`,
-      inputSchema: GetCountSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const count = await client.getCount(
-          params.doctype,
-          params.filters?.map(([f, op, val]) => [params.doctype, f, op, val as string])
-        );
-        return { content: [{ type: "text", text: `Count of ${params.doctype}: ${count}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 10. Call Method ───────────────────────────────────
-  server.registerTool(
-    "erpnext_call_method",
-    {
-      title: "Call ERPNext Method",
-      description: `Call any whitelisted ERPNext/Frappe method via the /api/method/ endpoint. This is the escape hatch for any operation not covered by the other tools.
-
-Args:
-  - method: Dotted method path (e.g. "erpnext.stock.utils.get_stock_balance")
-  - args: Method arguments as key-value object
-
-Common methods:
-  - frappe.client.get_value: Get a field value from a document
-  - frappe.client.set_value: Set a field value on a document
-  - frappe.client.get_list: Alternative list with more options
-  - erpnext.stock.utils.get_stock_balance: Get stock balance for item/warehouse
-  - erpnext.setup.utils.get_exchange_rate: Get currency exchange rate
-  - erpnext.selling.page.point_of_sale.point_of_sale.get_items: POS items
-  - erpnext.stock.get_item_details.get_item_details: Full item details for transactions`,
-      inputSchema: CallMethodSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: false, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const result = await client.callMethod(params.method, params.args);
-        const text = typeof result === "string" ? result : JSON.stringify(result, null, 2);
-        return { content: [{ type: "text", text: truncateResponse(text) }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 11. Get DocType Schema ────────────────────────────
-  server.registerTool(
-    "erpnext_get_doctype_meta",
-    {
-      title: "Get DocType Schema/Meta",
-      description: `Get the field definitions and schema for any DocType. Useful to discover available fields before listing or creating documents.
-
-Args:
-  - doctype: DocType name
-
-Returns: List of fields with fieldname, fieldtype, label, options, reqd (required), read_only, hidden.`,
-      inputSchema: GetDocTypeMetaSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const meta = await client.getDocTypeMeta(params.doctype);
-        const text = JSON.stringify(meta, null, 2);
-        return { content: [{ type: "text", text: truncateResponse(text) }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 12. Run Report ────────────────────────────────────
-  server.registerTool(
-    "erpnext_run_report",
-    {
-      title: "Run ERPNext Report",
-      description: `Run a Script Report or Query Report and return the data.
-
-Args:
-  - report_name: Name of the report (e.g. "General Ledger", "Stock Balance", "Accounts Receivable")
-  - filters: Report filter parameters as key-value object
-
-Examples:
-  - General Ledger: report_name="General Ledger", filters={"company":"My Company","from_date":"2024-01-01","to_date":"2024-12-31"}
-  - Stock Balance: report_name="Stock Balance", filters={"company":"My Company"}
-  - Accounts Receivable: report_name="Accounts Receivable", filters={"company":"My Company"}`,
-      inputSchema: RunReportSchema,
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const result = await client.runReport(params.report_name, params.filters);
-        const text = JSON.stringify(result, null, 2);
-        return { content: [{ type: "text", text: truncateResponse(text) }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 13. List DocTypes ─────────────────────────────────
-  server.registerTool(
-    "erpnext_list_doctypes",
-    {
-      title: "List Available DocTypes",
-      description: `List all available DocTypes in the ERPNext instance. Useful to discover what entities exist.
-
-Returns: Array of DocType names sorted alphabetically.`,
-      inputSchema: {},
-      annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async () => {
-      try {
-        const doctypes = await client.getDocTypeList();
-        return { content: [{ type: "text", text: `Available DocTypes (${doctypes.length}):\n\n${doctypes.join("\n")}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 14. Bulk Update ───────────────────────────────────
-  server.registerTool(
-    "erpnext_bulk_update",
-    {
-      title: "Bulk Update ERPNext Documents",
-      description: `Update multiple documents of the same DocType with the same field values.
-
-Args:
-  - doctype: DocType name
-  - names: Array of document names to update
-  - data: Field values to set on all documents
-
-Example: Set status on multiple issues: doctype="Issue", names=["ISS-001","ISS-002"], data={"status":"Closed"}`,
-      inputSchema: BulkUpdateSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: true, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const results: string[] = [];
-        const errors: string[] = [];
-        for (const name of params.names) {
-          try {
-            await client.updateDocument(params.doctype, name, params.data);
-            results.push(name);
-          } catch (error) {
-            errors.push(`${name}: ${(error as Error).message}`);
-          }
-        }
-        let text = `Updated ${results.length}/${params.names.length} ${params.doctype} documents.`;
-        if (errors.length) {
-          text += `\n\nErrors:\n${errors.join("\n")}`;
-        }
-        return { content: [{ type: "text", text }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-
-  // ─── 15. Workflow Action ───────────────────────────────
-  server.registerTool(
-    "erpnext_workflow_action",
-    {
-      title: "Apply Workflow Action",
-      description: `Apply a workflow action to a document that has a workflow configured.
-
-Args:
-  - doctype: DocType name
-  - name: Document name
-  - action: Workflow action name (e.g. "Approve", "Reject", "Submit")`,
-      inputSchema: WorkflowActionSchema,
-      annotations: { readOnlyHint: false, destructiveHint: false, idempotentHint: false, openWorldHint: true },
-    },
-    async (params) => {
-      try {
-        const result = await client.callMethod("frappe.model.workflow.apply_workflow", {
-          doc: { doctype: params.doctype, name: params.name },
-          action: params.action,
-        });
-        return { content: [{ type: "text", text: `Applied workflow action "${params.action}" on ${params.doctype}: ${params.name}` }] };
-      } catch (error) {
-        return { isError: true, content: [{ type: "text", text: `Error: ${(error as Error).message}` }] };
-      }
-    }
-  );
-}