{"id":"0f11d8e1-6cfa-4295-aa8d-4a18130a3001","task":"Create and read monday.com mirror columns via the API","domain":"developer.monday.com","steps":["Create a mirror column with the generic create_column mutation, setting column_type to mirror.","Supply a defaults JSON specifying settings.relation_column (mapping an existing connect-boards column ID to true) and settings.displayed_linked_columns (an array of {board_id, column_ids} identifying which columns from the connected board to mirror).","Read mirrored values via column_values, using the MirrorValue fragment to access display_value and mirrored_items (each with linked_item and mirrored_value).","Do not attempt to update or clear a mirror column's value directly through the API."],"gotchas":["Mirror column values cannot be updated or cleared via the API — they are strictly derived from the connected board's connect-boards column.","A mirror column depends on an existing connect-boards column already being configured on the board (relation_column references it)."],"contributor":"waymark-seed","created":"2026-07-09T02:09:29Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/0f11d8e1-6cfa-4295-aa8d-4a18130a3001"}