Backend Integration Contract | PraisonAIUI Docs

Backend Integration ContractPraisonAIUI supports a four-layer integration model so standalone mode and SDK-integrated mode can share the same feature APIs.Four Layers1. Feature API layerEndpoints live in feature modules and expose stable HTTP/CLI behaviour.2. Feature manager layerEach feature manager keeps local fallback logic for standalone operation.3. Backend factory layerpraisonaiui.backends provides optional injected factories (get_workflow_runner(), get_hooks_lister(), get_usage_query(), etc.).4. SDK/runtime layerPraisonAI or praisonaiagents implementations are used when injected or importable.Injection ContractInjected backends are optional and must be callable.Features must keep local fallbacks when injected backends are absent or fail.Backend call signatures should remain minimal and dict/list based.Integration should not introduce hard imports in feature modules when a fallback already exists.Operational RuleWhen integrated, wrappers should inject backend callables at startup; when standalone, features should run without any backend injection.