Start with the evidence
Ask which supplied record supports the relevant amount, date or conclusion. Open that source and compare its context with the answer instead of relying on a quoted fragment in isolation.
Work through the example
An answer says an invoice is paid, but the source is only a payment reminder. That document supports a follow-up event, not evidence that money was received.
Make the next step clear
Correct the unsupported statement and identify the evidence still needed. Keep the answer at the level the source can support rather than upgrading an assumption into a completed status.
Keep the source context
Eftheia’s unnamed AI agent helps with accounting work, document drafts and finding information. The examples are ways to frame and review a task, not a list of guaranteed tools, autonomous actions or supported external systems.