DefaultConfigurationProvider class

Default provider that returns environment-based configuration.

Multi-tenant considerations: This provider creates a single configuration instance at construction time, shared across all requests in a process. The default module-level providers (e.g., defaultRuntimeConfigurationProvider) are singletons.

For multi-tenant scenarios, two approaches are supported:

1. Dynamic override functions (recommended): Pass override functions that read from async context (e.g., OpenTelemetry baggage) at runtime. The same Configuration instance returns different values per request.

   const config = new ToolingConfiguration({
     mcpPlatformEndpoint: () => {
       const tenantConfig = context.active().getValue(TENANT_KEY);
       return tenantConfig?.endpoint ?? 'https://default.endpoint';
     }
   });
   

2. Per-tenant providers: Create separate provider instances for each tenant when different tenants need different override functions entirely.