How to use the content of a Context inside a reducer - react-redux

Question

I load an essentially static configuration from the server using RTK Query which is parsed into a Context and used inside a Provider. I can happily use the configuration in elements with a useConfiguration() hook.
However, I want to use the configuration when processing actions.
Is it possible to get the content of the Context in a reducer?
Of course, I can pass the entire configuration as part of the action payload, but would like to avoid doing this. The reason is that the configuration is large (making the serialised actions large?), and it makes it more difficult to create actions in Storybook stories.
Here is the context:
export const ConfigurationProvider: FC = ({ children }) => {
const { data } = api.useGetConfigurationQuery()
const [state, dispatch] = useReducer(configurationReducer, initialState)
const value = useMemo(
() => ({ configuration: state, dispatch }),
[state, data]
)
useEffect(() => {
if (data) {
dispatch({ type: 'parse', payload: data })
}
}, [data])
return (
<ConfigurationContext.Provider value={value}>
{children}
</ConfigurationContext.Provider>
)
}
Here is where I want to use the configuration:
const mySlice = createSlice({
name: 'mySlice',
initialState,
reducers: {},
extraReducers: (builder) => {
builder.addCase(quoteAction.addItem, (state, action) => {
// How can I get the configuration here.
})
},
})