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Overview

For Developers tab showing T3AF architecture at a glance Architecture at a glance — extensions call T3AF, which routes to AI providers and MCP clients. T3AF is a shared foundation layer:
Parallel support:

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Main components

  • Request orchestration: AiServiceInterface and AiService
  • Provider adapters: AdapterRegistry and AdapterInterface implementations
  • Statistics processing: AiStatisticsService and OpenAiOrganizationUsageService
  • Engine configuration filtering: AiEngineConfiguration
  • Utility and environment helpers: AiUniverseUtilityHelper
  • HTTP auth helper: HttpAuthUtility

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Configuration model

Runtime AI requests resolve through provider rows in AI Providers. Optional extension settings cover translation helpers, Basic Auth, notifications, and MCP switches. See Configuration. This includes:
  • provider adapters, encrypted API keys, and model IDs
  • default provider selection
  • optional temperature and capability flags on provider rows
  • optional Basic Auth settings for protected URL fetching

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Caching

The extension registers cache nst3af_statistics in ext_localconf.php. Statistics service stores processed data in this cache to reduce repeated usage API calls.

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Constraints

  • No native frontend plugin and no Fluid frontend output in this package.
  • Primary role is reusable service infrastructure.