Merge multiple CSV or Excel files with automatic column matching, deduplication, and conflict resolution. - [Workflow](#workflow) — the step-by-step merge process - [Verification](#verification) — confirm the merge before handing it back - [Special cases](#special-cases) — encoding, compound keys, large files - [Guidelines](#guidelines) — quality and transparency standards - [Example triggers](#example-triggers) - `references/merge_strategies.md` — column matching, conflict resolution, and dedup options - `references/output_template.md` — the merge-report format