# 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.
