Goal: turn an MLS export into a field-by-field discrepancy report against the
county's public records, so the appraiser fixes mismatches before the report
ships.
-
Identify the county. It is auto-detected from the CSV County column; if
absent, ask or infer. Confirm it is covered with list_counties. If it is
not, run the onboard-locale skill first (a single county is fine).
-
Run the check with the MCP tool
check_mls_csv(subject_csv, comps_csv, county, state). The subject CSV's
first row is the subject; the comps CSV holds comparables. Standard PPMLS and
RESO/REColorado column names are both understood. (CLI equivalent:
assessor-lookup check subject.csv comps.csv --county "<County>".)
-
Report the discrepancies. For each property, show the flagged fields.
Focus on the stable fields — GLA, beds, baths, year built, basement —
where flag is true; those are the real discrepancies to reconcile. Values,
owner, and taxes drift legitimately year to year, so don't alarm on those.
Include the assessor_url for any flagged property so the appraiser can
verify the record.
-
Explain the common ones. Multi-level homes (tri-level, 4-level) routinely
show a large GLA diff because MLS counts the lower level as basement while
the assessor counts it above-grade — flag it as expected, not an error.
Bath counts often differ (assessor total vs MLS above-grade split).
Report what the records actually say. Note any property that came back
not_found or timeout so the appraiser checks it manually — don't silently
drop it.
