# RetrieX Patch 6.1 - Audit Gap Cleanup Scope: close the remaining config-source audit gaps that still reported `fallback_accessors_missing_yaml` after Patch 6. This patch intentionally does not remove PHP fallbacks yet and does not change runtime logic. It only adds the missing YAML keys with values copied 1:1 from the current PHP defaults so the following accessors have an explicit YAML source: - `AgentRunnerConfig::getOptimizedShopQueryTrimCharacters()` - `NdjsonHybridRetrieverConfig` retrieval vocabulary lists - `PromptBuilderConfig::getTechnicalProductKeywords()` - `PromptBuilderConfig::getAccessoryRequestKeywords()` Changed files: - `config/retriex/agent.yaml` - `config/retriex/retrieval.yaml` - `config/retriex/prompt.yaml` Recommended checks after applying: ```bash php bin/console cache:clear php bin/console mto:agent:config:validate php bin/console mto:agent:config:audit-source --details php bin/console mto:agent:regression:test ``` Expected audit improvement: - `fallback_accessors_missing_yaml` should drop from `12` to `0`. `constructor_defaults_without_yaml_mapping` may still remain and should be handled separately before strict validation is enabled.