harshaA citation can improve an answer's appearance without improving its accountability. A link to a large document is technically a source, but it may leave the reader searching through hundreds of pages to find the relevant evidence.
The real value of a citation is the path it creates from a claim to material that supports that claim.
Carry identity through the pipeline
A retrieved passage should retain document identity, version, and a useful location. The answer can then point to the same evidence the system actually used.
In an illustrative document assistant, that location might be a page number and passage identifier. In a spreadsheet assistant, it could be a sheet name and row range. The appropriate form depends on the source, but “somewhere in this file” is a weak destination.
The source should also remain accessible to the user who receives the answer. A citation to evidence they cannot open creates an apparent explanation without a practical verification path.
Match claims to evidence
An answer may combine a fact from one passage with an interpretation from another. Those relationships should not collapse into a list of links at the end.
I would review citations claim by claim: does this passage support this statement, does it include the relevant qualification, and is the statement stronger than the evidence? A correct link can still accompany an overstated conclusion.
Evaluation should include misleading citations, unsupported claims with plausible links, and answers that cite an outdated document version. Merely counting source markers will miss these cases.
Allow uncertainty to stay visible
Sometimes the available material does not resolve a question. The answer can name the gap instead of decorating a guess with a citation.
A useful response might explain that the document describes a general rule but does not specify how it applies to the user's case. That keeps interpretation separate from evidence and gives the user a better next step.
My preferred citation experience is simple: a reader can move from answer to passage, understand why it was selected, and decide whether it supports the claim. The link is an invitation to inspect the reasoning, not a badge declaring that the reasoning is finished.