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    • diff --git a/Document-Processing/Excel/Spreadsheet/React/webmcp.md b/Document-Processing/Excel/Spreadsheet/React/webmcp.md new file mode 100644 index 0000000000..d2826b50f9 --- /dev/null +++ b/Document-Processing/Excel/Spreadsheet/React/webmcp.md @@ -0,0 +1,521 @@ +--- +layout: post +title: WebMCP Integration in React Spreadsheet | Syncfusion +description: Integrate WebMCP with React Spreadsheet to enable AI agents and external tools to automate spreadsheet operations programmatically. +platform: document-processing +control: WebMCP +documentation: ug +--- + +# WebMCP Integration in React Spreadsheet + +## Overview + +**WebMCP (Model Context Protocol)** is a powerful integration framework that exposes your Syncfusion Spreadsheet as a set of standardized tools accessible to AI agents, LLMs, and external applications. Instead of building custom APIs for each tool integration, WebMCP provides a universal interface that enables seamless interoperability between your spreadsheet and any MCP-compatible client. + +## Why WebMCP? + +### Key Benefits + +| Benefit | Description | +|---------|-------------| +| **Universal Tool Access** | Expose spreadsheet operations as standardized MCP tools that any AI agent or LLM can discover and invoke. | +| **Zero Custom Code** | No need to build proprietary APIs or middleware — WebMCP handles the integration automatically. | +| **Secure & Controlled** | Selectively register only the tools your application needs, ensuring a focused and secure interface. | +| **Multi-Instance Support** | Run multiple spreadsheets on the same page, each with independently scoped tools to prevent naming conflicts. | +| **Undo/Redo Compatible** | All tool operations integrate with the spreadsheet's native undo/redo history for seamless user control. | +| **Real-Time Feedback** | Tools provide immediate, actionable feedback and confirmation messages via the MCP protocol. | + +### Use Cases + +- **AI-Powered Assistants**: Enable LLMs and chatbots to perform spreadsheet tasks autonomously +- **Enterprise Automation**: Integrate with enterprise AI systems and workflow orchestration platforms +- **External Tool Integration**: Connect third-party applications and services to your spreadsheet +- **Multi-Agent Workflows**: Build distributed workflows where multiple AI agents collaborate on spreadsheet data +- **Custom Data Processing**: Allow external systems to read data, analyze it, and apply transformations + + +## Getting Started + +### Inject the WebMCP Module + +Import and inject the `WebMcpAdapter` module into your Spreadsheet component: + +```ts +import { Spreadsheet, WebMcpAdapter } from '@syncfusion/ej2-react-spreadsheet'; + +// Inject the WebMCP module to expose MCP tools +Spreadsheet.Inject(WebMcpAdapter); +``` + +### Enable WebMCP + +Set the `enableWebMcp` property to `true` in the Spreadsheet configuration: + +```ts +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, // Enable WebMCP integration + sheets: [{ + name: 'Sales Data', + ranges: [{ dataSource: myData }] + }], + // ... other configuration +}); +``` + +### Register Tools on the Application + +Once WebMCP is enabled, retrieve the available tools and register them with the MCP client (typically the `document.modelContext` global object): + +```ts +/** + * Registers Spreadsheet WebMCP tools on document.modelContext. + * + * @param parent The Spreadsheet instance to bind tools to. + * @param instanceName Unique prefix for tool names (e.g. 'sales', 'gdp'). + * Avoids collisions when multiple spreadsheets are on the page. + * @param toolNames Optional allowlist of tool names to register. + * When omitted, ALL tools are registered. + * Example: ['getCellData', 'editCell', 'formatCells'] + */ +function registerSpreadsheetTools(parent: Spreadsheet, instanceName: string, toolNames?: string[]): void { + const modelContext: any = (document as any).modelContext; + if (!modelContext || typeof modelContext.registerTool !== 'function') { + return; + } + const tools: WebMcpTool[] = parent.getWebMcpTools(toolNames); + for (const tool of tools) { + tool.name = `${instanceName}_${tool.name}`; + tool.execute = async (args: any) => parent.executeWebMcpTool(tool.name, args || {}); + modelContext.registerTool(tool); + } +} +``` + +### Use in Your Application + +Call the registration function after your Spreadsheet is initialized: + +```ts +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, + sheets: [{ + name: 'Price Details', + ranges: [{ dataSource: defaultData }] + }], + created: (): void => { + // Register all WebMCP tools with instance prefix 'sales' + registerSpreadsheetTools(spreadsheet, 'sales'); + } +}); + +spreadsheet.appendTo('#spreadsheet'); +``` + +## WebMCP Customization + +### Selective Tool Registration + +By default, all available WebMCP tools are registered. To expose only specific tools, pass an array of tool names: + +```ts +// Register only data reading and editing tools +registerSpreadsheetTools(spreadsheet, 'sales', [ + 'getCellData', + 'getRangeData', + 'editCell', + 'formatCells' +]); +``` + +### Multiple Spreadsheet Instances + +When hosting multiple spreadsheets on the same page, use unique instance names to prevent tool name collisions: + +```ts +// First spreadsheet instance +registerSpreadsheetTools(spreadsheet1, 'sales'); + +// Second spreadsheet instance +registerSpreadsheetTools(spreadsheet2, 'gdp'); +``` + +Now MCP clients can call `sales_getCellData`, `sales_editCell`, `gdp_getCellData`, etc., distinguishing between instances automatically. + +### Event Handling + +Implement the `beforeWebMcpToolExecute` event to validate, monitor, or control tool execution: + +```ts +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, + beforeWebMcpToolExecute: (args: WebMcpToolExecuteEventArgs): void => { + console.log(`Tool: ${args.toolName}, Args:`, args.toolArgs); + + // Example: Cancel risky operations + if (args.toolName.includes('delete')) { + args.cancel = true; // Prevent execution + console.warn('Delete operations are not allowed'); + } + + // Example: Show confirmation dialog for critical operations + if (args.toolName.includes('formatCells')) { + args.showConfirmationDialog = true; + } + } +}); +``` + +## Spreadsheet WebMCP Tools + +WebMCP exposes the following tools that any MCP client can discover and invoke: + +### Data Reading Tools + +| Tool | Description | +|------|-------------| +| **getCellData** | Retrieve the value of a single cell by address (e.g., "A1", "Sheet2!B3"). | +| **getRangeData** | Retrieve values, formulas, and formatting from a cell range (e.g., "A1:C10"). | +| **getSheetInfo** | Get metadata about a sheet including name, dimensions, and row/column counts. | +| **evaluateFormula** | Evaluate a formula string and return the computed result. | +| **find** | Find all cell addresses matching a search value within a range. | + +### Data Editing Tools + +| Tool | Description | +|------|-------------| +| **editCell** | Set the value or formula of a single cell. | +| **formatCells** | Apply formatting (bold, italic, color, alignment, etc.) to a range. | +| **numberFormat** | Apply number formatting (currency, percentage, date, etc.) to a range. | +| **clearRange** | Clear contents and/or formatting from a range. | + +### Spreadsheet Structure Tools + +| Tool | Description | +|------|-------------| +| **insertRows** | Insert new rows at a specified position. | +| **insertColumns** | Insert new columns at a specified position. | +| **deleteRows** | Delete rows from a specified range. | +| **deleteColumns** | Delete columns from a specified range. | +| **mergeCells** | Merge cells in a range. | +| **freezePanes** | Freeze rows and columns to keep them visible during scrolling. | + +### Data Transformation Tools + +| Tool | Description | +|------|-------------| +| **sortRange** | Sort a range by one or more columns (ascending/descending). | +| **filterRange** | Apply or clear AutoFilter on a range. | +| **autoFill** | Fill cells following a pattern or series. | +| **findReplace** | Find and replace all occurrences of a value in a range. | + +### Visualization & Analytics Tools + +| Tool | Description | +|------|-------------| +| **insertChart** | Insert a chart (Column, Line, Pie, etc.) for a data range. | +| **conditionalFormat** | Apply conditional formatting rules (e.g., highlight cells greater than a threshold). | + +### Utility & Integration Tools + +| Tool | Description | +|------|-------------| +| **dataValidation** | Add data validation rules (dropdown lists, number ranges, date ranges). | +| **hyperlink** | Insert hyperlinks into cells. | +| **cut** / **copy** / **paste** | Perform clipboard operations. | + + +## Best Practices + +### 1. **Scope Tools Appropriately** + +Register only the tools your application requires. This reduces exposure and simplifies the MCP client's interface: + +```ts +// GOOD: Expose only read and edit tools +registerSpreadsheetTools(spreadsheet, 'app', [ + 'getCellData', 'getRangeData', 'editCell', 'formatCells' +]); + +// AVOID: Exposing all tools including potentially risky operations +registerSpreadsheetTools(spreadsheet, 'app'); // All tools registered +``` + +### 2. **Use Unique Instance Names** + +When multiple spreadsheets share the page, always assign unique instance names to avoid tool name conflicts: + +```ts +registerSpreadsheetTools(salesSheet, 'sales'); +registerSpreadsheetTools(inventorySheet, 'inventory'); +registerSpreadsheetTools(reportSheet, 'reports'); +``` + +### 3. **Monitor Tool Execution** + +Use the `beforeWebMcpToolExecute` event to audit, validate, or restrict tool usage: + +```ts +beforeWebMcpToolExecute: (args: WebMcpToolExecuteEventArgs): void => { + if (args.toolName.includes('edit')) { + console.log('Edit command is not allowed'); + args.cancel = true; + } +} +``` + +## Troubleshooting + +### WebMCP Tools Not Appearing + +**Problem**: Tools are not registered on `document.modelContext`. + +**Solution**: +- Verify `enableWebMcp: true` is set on the Spreadsheet configuration. +- Ensure `WebMcpAdapter` is injected via `Spreadsheet.Inject(WebMcpAdapter)`. +- Check browser console for errors in the `registerSpreadsheetTools` function. + +### Tool Execution Fails + +**Problem**: MCP client calls a tool but receives an error. + +**Solution**: +- Verify the tool name is correct (use instance prefix: `sales_editCell`, not just `editCell`). +- Check the `beforeWebMcpToolExecute` event — the command may have been cancelled. +- Review the `CommandResult` error object for specific failure reason. + +### Multiple Spreadsheets Conflict + +**Problem**: Tool names collide when running multiple spreadsheets. + +**Solution**: +- Use unique `instanceName` values for each spreadsheet in `registerSpreadsheetTools`. +- Example: `registerSpreadsheetTools(sheet1, 'report_q1')`, `registerSpreadsheetTools(sheet2, 'report_q2')`. + +## Integration Examples + +### Example 1: Simple Tool Registration (All Tools) + +```ts +import { Spreadsheet, WebMcpAdapter } from '@syncfusion/ej2-react-spreadsheet'; + +Spreadsheet.Inject(WebMcpAdapter); + +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, + sheets: [{ + name: 'Sales', + ranges: [{ dataSource: salesData }] + }], + created: (): void => { + registerSpreadsheetTools(spreadsheet, 'sales'); // All tools registered + } +}); +``` + +### Example 2: Selective Tool Registration + +```ts +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, + sheets: [{ + name: 'Inventory', + ranges: [{ dataSource: inventoryData }] + }], + created: (): void => { + // Register only safe, read-only tools + registerSpreadsheetTools(spreadsheet, 'inventory', [ + 'getCellData', + 'getRangeData', + 'find', + 'evaluateFormula' + ]); + } +}); +``` + +### Example 3: With Event Validation + +```ts +const spreadsheet = new Spreadsheet({ + enableWebMcp: true, + sheets: [{ + name: 'Financial', + ranges: [{ dataSource: financialData }] + }], + beforeWebMcpToolExecute: (args: WebMcpToolExecuteEventArgs): void => { + // Audit log + console.log(`[AUDIT] Tool: ${args.toolName}`, args.toolArgs); + + // Restrict delete operations + if (args.toolName.includes('delete')) { + args.cancel = true; + console.error('Delete operations are disabled for security.'); + } + }, + created: (): void => { + registerSpreadsheetTools(spreadsheet, 'finance', [ + 'getCellData', 'getRangeData', 'editCell', 'formatCells' + ]); + } +}); +``` + +## Real-World Usage Examples + +This section demonstrates how AI agents use WebMCP tools to handle practical spreadsheet tasks through natural language prompts. + +### Example 1: Search and Retrieve + +**User Prompt:** "What is the price of formal shoes?" + +**AI Tool Execution Flow:** +``` +AI calls: find({findValue: "formal shoes"}) + ↓ +Tool returns: addresses: ["Price Details!A4"] + ↓ +AI calls: getRangeData({range: "A1:Z1"}) // Get headers + ↓ +AI identifies that column E contains "Price" + ↓ +AI calls: getCellData({address: "E4"}) + ↓ +Tool returns: value: 15 + ↓ +AI responds: "The price of formal shoes is 15" +``` + +**Key Insight:** Complex tasks require multiple tool calls. The AI chains tools together — find → identify structure → retrieve data. + +### Example 2: Data Analysis with Conditional Formatting + +**User Prompt:** "Highlight the profit values greater than 30" + +**AI Tool Execution Flow:** +``` +AI calls: find({findValue: "Profit"}) + ↓ +Tool returns: addresses: ["Price Details!H1"] + ↓ +AI calls: getSheetInfo({sheetName: "Price Details"}) + ↓ +Tool returns: full sheet structure with row/column info + ↓ +AI calls: conditionalFormat({ + range: "H2:H11", + type: "GreaterThan", + value: "30", + color: "GreenFT" +}) + ↓ +Tool returns: message: "Applied conditional format to H2:H11" + ↓ +AI responds: "Profit values > 30 in H2:H11 are now highlighted" +``` + +**Key Insight:** Data analysis tasks often require sheet introspection first, then applying formatting based on discovered data ranges. + +### Example 3: Formula Evaluation + +**User Prompt:** "What is the result of =SUM(H2:H11)?" + +**AI Tool Execution Flow:** +``` +AI calls: evaluateFormula({formula: "=SUM(H2:H11)"}) + ↓ +Tool returns: value: 554 + ↓ +AI responds: "The result is 554" +``` + +**Key Insight:** Formula evaluation is one of the fastest operations — direct calculation without iterating cells. + +### Example 4: Data Modification + +**User Prompt:** "Change the quantity of Sneakers from 40 to 45" + +**AI Tool Execution Flow:** +``` +AI calls: find({findValue: "Sneakers"}) + ↓ +Tool returns: addresses: ["Price Details!A7"] // Row 7 + ↓ +AI calls: getRangeData({range: "A1:E10"}) // Retrieve headers + data + ↓ +Tool returns: Column D is "Quantity" + ↓ +AI calls: editCell({address: "D7", value: "45"}) + ↓ +Tool returns: message: "Updated D7 to 45" + ↓ +Action added to undo/redo history + ↓ +AI responds: "Updated quantity of Sneakers in D7 from 40 to 45" +``` + +**Key Insight:** Even simple edits require context discovery. AI must locate the item and identify the correct column before editing. + +### Example 5: Formatting Operations + +**User Prompt:** "Apply bold and blue background to the header row" + +**AI Tool Execution Flow:** +``` +AI calls: formatCells({ + range: "A1:H1", + formatting: { + bold: true, + backgroundColor: "#0000FF" + } +}) + ↓ +Tool returns: message: "Applied cell style to A1:H1" + ↓ +AI responds: "Header row (A1:H1) is now bold with blue background" +``` + +**Key Insight:** Multiple formatting attributes can be applied in a single tool call for efficiency. + +### Example 6: Number Format Application + +**User Prompt:** "Apply currency format to the Price and Amount columns" + +**AI Tool Execution Flow:** +``` +AI calls: find({findValue: "Price"}) + ↓ +Tool returns: addresses: ["Price Details!E1"] + ↓ +AI calls: find({findValue: "Amount"}) + ↓ +Tool returns: addresses: ["Price Details!F1"] + ↓ +AI calls: getSheetInfo() // Determine data range extent + ↓ +AI calls: setNumberFormat({ + range: "E2:E11", + format: "Currency" +}) + ↓ +AI calls: setNumberFormat({ + range: "F2:F11", + format: "Currency" +}) + ↓ +AI responds: "Applied currency format to Price (E2:E11) and Amount (F2:F11)" +``` + +**Key Insight:** AI discovers target columns first, then applies formatting to the relevant data rows only. + +## Limitations + +* **Single Sheet Scope**: WebMCP tools operate on the currently active sheet only. +* **Synchronous Communication**: Most tools execute synchronously; plan accordingly for performance-critical operations. +* **Data Size**: Large range operations (e.g., formatting 100,000 rows) may impact performance. + +## See Also + +* [AI Assist in React Spreadsheet](../ai-assist/overview) +* [Open Excel Files](../open-excel-files) +* [Save Excel Files](../save-excel-files) \ No newline at end of file