verify-with-andonlisted

# Verify analysis with andon You have just produced (or edited) an analysis artifact: a report workbook, a summary table, a set of claimed figures. Before presenting it, verify it with andon. The verification is deterministic arithmetic — your own confidence in the numbers is not a substitute for it. ## The discipline 1. **Write the spec while the derivation is fresh.** For every number you put in the artifact, you know which source rows and filters produced it. Encode exactly that as a check. If you cannot write the check, you do not actually know where the number came from — treat that as a defect in the analysis, not in the spec. 2. **Cover four layers, in this order:** - `schema.*` — the assumptions about the source data (unique keys, allowed values, date continuity); - `reconcile.*` — every headline figure against the source, with the same filters you used to derive it; - `internal.*` — totals vs parts, percentages vs 100, derived columns vs their formulas; - `excel.integrity` — if the artifact is a workbook. 3. **Run and read:** ``` andon run andon.yaml --json ``` Exit 0 = all pass. Exit 1 = at least one FAIL: the artifact is wrong or the spec is — find out which before touching anything else. Exit 2 = REVIEW flags: report them to the user verbatim; do not resolve them yourself. Exit 3 = nothing was verified (a check could not run, or every check was skipped): fix the spec or say plainly that the claim i