@ai-universe/config-utils

Shared configuration utilities for the AI Universe ecosystem. This package provides centralized configuration management with support for environment variables, GCP Secret Manager, and Firestore-based runtime configuration.

Features

• ConfigManager: Unified configuration loading with GCP Secret Manager fallback
• SecretManager: Google Cloud Secret Manager integration with caching
• RuntimeConfigService: Dynamic configuration stored in Firestore
• Constants & Validation: Shared limits, timeouts, and validation rules
• Type Safety: Full TypeScript support with exported interfaces

Installation

npm install @ai-universe/config-utils

Usage

ConfigManager

import { ConfigManager, configManager } from '@ai-universe/config-utils';

// Load complete application configuration
const config = await configManager.loadConfig();
console.log('Server port:', config.server.port);
console.log('API keys configured:', Object.keys(config.apiKeys));

SecretManager

import { SecretManager } from '@ai-universe/config-utils';

const secretManager = new SecretManager('your-gcp-project');
const apiKey = await secretManager.getSecret('claude-api-key');

RuntimeConfigService

import { runtimeConfigService } from '@ai-universe/config-utils';

// Get current configuration
const runtimeConfig = await runtimeConfigService.getConfig();
console.log('Rate limits:', runtimeConfig.rateLimit);

// Update configuration
await runtimeConfigService.updateConfigValue('features', {
  enableCerebras: true,
  enableClaude: true
});

Constants & conversation defaults

import {
  MAX_QUESTION_LENGTH,
  DEFAULT_TIMEOUT_MS,
  MODEL_SPECIFIC_LIMITS,
  DEFAULT_SECONDARY_MODELS,
  MAX_CLIENT_FINGERPRINT_LENGTH,
  estimateTokens
} from '@ai-universe/config-utils';

// Validate input length
if (userInput.length > MAX_QUESTION_LENGTH) {
  throw new Error('Input too long');
}

// Estimate tokens
const tokenCount = estimateTokens(userInput.length);

All constants from SecondOpinionConfig.ts are available through the package entry point so downstream consumers no longer need to deep import from dist/SecondOpinionConfig.js.

Verifying the public API

After building the package, you can confirm that the published surface matches the TypeScript source by listing the exported keys from Node:

npm run build
npm run check:exports

The check:exports script executes scripts/check-exports.mjs to import the package entry point and print the sorted export keys. This helper is suitable as a lightweight regression check in CI to ensure the build artifact matches the TypeScript source.

Extracted Code

This package contains 874 LOC extracted from AI Universe backend:

• ConfigManager.ts (485 LOC) - Environment/API key/Firebase configuration
• SecretManager.ts (171 LOC) - GCP Secret Manager integration
• RuntimeConfigService.ts (218 LOC) - Dynamic Firestore configuration

API Reference

Types

• AppConfig - Complete application configuration interface
• RuntimeConfig - Dynamic runtime configuration interface
• ConfigSource - Configuration value source tracking
• PrimaryModelName - Supported AI model names

Constants

• Input validation limits (MAX_QUESTION_LENGTH, etc.)
• Timeout configurations (MIN/MAX/DEFAULT_TIMEOUT_MS)
• Model-specific limits (MODEL_SPECIFIC_LIMITS)
• Error messages (ERROR_MESSAGES)

Dependencies

• @google-cloud/secret-manager - GCP Secret Manager client
• @google-cloud/firestore - Firestore client
• winston - Logging

License

MIT