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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | 405x 18x 16x 2x 1x 1x 18x | /**
* Shared response builder utilities for MCP tool handlers.
*
* ISMS Policy: SC-002 (Input Validation), AC-003 (Least Privilege)
*/
import type { ToolResult } from './types.js';
/**
* Build a standard success response wrapping data as formatted JSON text.
*
* @param data - Data payload to serialize
* @returns MCP-compliant ToolResult
*/
export function buildToolResponse(data: unknown): ToolResult {
return {
content: [{ type: 'text', text: JSON.stringify(data, null, 2) }]
};
}
/**
* Build an error response from an error value or message string.
* Never exposes raw stack traces to MCP clients.
*
* @param error - Error instance or message string
* @param toolName - Name of the tool that produced the error
* @returns MCP-compliant ToolResult with isError flag set
*/
export function buildErrorResponse(error: unknown, toolName: string): ToolResult {
let message: string;
if (error instanceof Error) {
message = error.message;
} else if (typeof error === 'string') {
message = error;
} else {
message = 'Unknown error occurred';
}
return {
content: [{ type: 'text', text: JSON.stringify({ error: message, toolName }, null, 2) }],
isError: true
};
}
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