Engineering Standards MCP Server

/** * Tool: standards_list_index * Returns a hierarchical index of all standards grouped by type, tier, and process */ import { ListIndexInput } from '../schemas/metadata.js'; import { ToolResponse } from '../types.js'; import { buildHierarchicalIndex, formatHierarchicalIndexAsMarkdown } from '../services/indexer.js'; /** * Lists all standards in a hierarchical index structure */ export async function listIndex(params: ListIndexInput, _extra?: unknown): Promise<ToolResponse> { try { const { filterType, filterTier, filterProcess, filterStatus, responseFormat } = params; // Build filtered hierarchical index const hierarchicalIndex = buildHierarchicalIndex({ type: filterType, tier: filterTier, process: filterProcess, status: filterStatus, }); // Count total standards let totalCount = 0; for (const tiers of Object.values(hierarchicalIndex)) { for (const processes of Object.values(tiers)) { for (const entries of Object.values(processes)) { totalCount += entries.length; } } } // Format output let outputText: string; let structuredOutput: unknown; if (responseFormat === 'json') { structuredOutput = { totalCount, index: hierarchicalIndex, }; outputText = JSON.stringify(structuredOutput, null, 2); } else { // Markdown format outputText = formatHierarchicalIndexAsMarkdown(hierarchicalIndex); outputText += `\n**Total Standards**: ${totalCount}`; structuredOutput = { totalCount, index: hierarchicalIndex, }; } return { content: [ { type: 'text', text: outputText, }, ], structuredContent: structuredOutput, }; } catch (error) { return { content: [ { type: 'text', text: `Error listing standards index: ${(error as Error).message}`, }, ], isError: true, }; } }