{
  "$comment": "CalEmbed #83 / calee-hub-core#558 D1a cross-client recurrence qualification matrix. Each case is one RRULE plus the SOURCE DTSTART evidence (value, all-day-ness, TZID presence) and the state and diagnostic reasons the pure classifier must return. Semantics mirror the merged Hub Core D1a classifier (calee-hub-core d505746, public/lib/core_calendar_recurrence_qualification.php); the goal is identical externally meaningful classification, not identical source. Consumed by tools/check-calendar-recurrence-qualification.php. The `integer_bound` group is calee-hub-core#582: COUNT and INTERVAL are valid only in 1..2147483647 (RFC 5545 3.3.8 INTEGER, narrowed to positive by 3.3.10). Its case names are shared verbatim with Hub Core's tests/calendar_recurrence_qualification_test.php section I and with the merged CaleeAdmin/CaleeMobile#611 fixtures, so the three engines' matrices stay mechanically comparable without sharing a file. The `duplicate_rrule` group is CaleeMobile#612: `rruleCount` is the number of LOGICAL RRULE properties the source component carried (after line unfolding); above one the classifier answers degraded_invalid / duplicate_rrule before reading the rule, whichever duplicate `rrule` holds. Cases without `rruleCount` are one property, as before.",
  "version": 1,
  "states": [
    "not_recurring",
    "supported",
    "degraded_unsupported",
    "degraded_invalid"
  ],
  "cases": [
    {
      "name": "control_daily",
      "rrule": "FREQ=DAILY",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_daily_interval",
      "rrule": "FREQ=DAILY;INTERVAL=2",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_daily_count",
      "rrule": "FREQ=DAILY;COUNT=3",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_daily_until_utc",
      "rrule": "FREQ=DAILY;UNTIL=20260410T090000Z",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_weekly",
      "rrule": "FREQ=WEEKLY",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_weekly_byday",
      "rrule": "FREQ=WEEKLY;BYDAY=MO,WE,FR",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_weekly_interval",
      "rrule": "FREQ=WEEKLY;INTERVAL=2;BYDAY=TU",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_weekly_byday_count",
      "rrule": "FREQ=WEEKLY;BYDAY=TU,TH;COUNT=4",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_monthly_day_15",
      "rrule": "FREQ=MONTHLY",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_monthly_day_1",
      "rrule": "FREQ=MONTHLY;INTERVAL=3",
      "dtstart": "20260301T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_monthly_day_28",
      "rrule": "FREQ=MONTHLY;COUNT=6",
      "dtstart": "20260128T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_yearly",
      "rrule": "FREQ=YEARLY",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_yearly_dec_31",
      "rrule": "FREQ=YEARLY;INTERVAL=2",
      "dtstart": "20261231T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_yearly_feb_28",
      "rrule": "FREQ=YEARLY",
      "dtstart": "20240228T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_all_day_daily_until_date",
      "rrule": "FREQ=DAILY;UNTIL=20260410",
      "dtstart": "20260310",
      "tzid": null,
      "allDay": true,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_floating_until_floating",
      "rrule": "FREQ=DAILY;UNTIL=20260410T100000",
      "dtstart": "20260310T100000",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_tzid_until_utc",
      "rrule": "FREQ=DAILY;UNTIL=20260410T020000Z",
      "dtstart": "20260310T100000",
      "tzid": "Australia/Perth",
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_unknown_tzid_until_utc",
      "rrule": "FREQ=DAILY;UNTIL=20260410T020000Z",
      "dtstart": "20260310T100000",
      "tzid": "Made Up Time",
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_trailing_semicolon",
      "rrule": "FREQ=DAILY;",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "control_lowercase",
      "rrule": "freq=weekly;byday=mo",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "supported",
      "reasons": [],
      "group": "supported_controls"
    },
    {
      "name": "hourly",
      "rrule": "FREQ=HOURLY;COUNT=4",
      "dtstart": "20260310T020000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "sub_daily_freq"
      ],
      "group": "sub_daily"
    },
    {
      "name": "minutely",
      "rrule": "FREQ=MINUTELY;INTERVAL=30",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "sub_daily_freq"
      ],
      "group": "sub_daily"
    },
    {
      "name": "secondly",
      "rrule": "FREQ=SECONDLY",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "sub_daily_freq"
      ],
      "group": "sub_daily"
    },
    {
      "name": "ordinal_byday_monthly_2TU",
      "rrule": "FREQ=MONTHLY;BYDAY=2TU",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "ordinal_byday",
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "ordinal_byday_weekly_2MO",
      "rrule": "FREQ=WEEKLY;BYDAY=2MO",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "ordinal_byday"
      ],
      "group": "byday"
    },
    {
      "name": "ordinal_byday_monthly_-1FR",
      "rrule": "FREQ=MONTHLY;BYDAY=-1FR",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "ordinal_byday",
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "ordinal_byday_weekly_+1MO",
      "rrule": "FREQ=WEEKLY;BYDAY=+1MO",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "ordinal_byday"
      ],
      "group": "byday"
    },
    {
      "name": "ordinal_byday_yearly_53MO",
      "rrule": "FREQ=YEARLY;BYDAY=53MO",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "ordinal_byday",
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "byday_monthly_TU",
      "rrule": "FREQ=MONTHLY;BYDAY=TU",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "byday_yearly_TU",
      "rrule": "FREQ=YEARLY;BYDAY=TU",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "byday_daily_MO",
      "rrule": "FREQ=DAILY;BYDAY=MO",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "byday_outside_weekly"
      ],
      "group": "byday"
    },
    {
      "name": "bysetpos",
      "rrule": "FREQ=MONTHLY;BYDAY=FR;BYSETPOS=-1",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "byday_outside_weekly",
        "unsupported_part:BYSETPOS"
      ],
      "group": "by_parts"
    },
    {
      "name": "bysetpos_alone",
      "rrule": "FREQ=MONTHLY;BYSETPOS=-1",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYSETPOS"
      ],
      "group": "by_parts"
    },
    {
      "name": "bymonth",
      "rrule": "FREQ=YEARLY;BYMONTH=3,9",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYMONTH"
      ],
      "group": "by_parts"
    },
    {
      "name": "bymonthday_list",
      "rrule": "FREQ=MONTHLY;BYMONTHDAY=1,15",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYMONTHDAY"
      ],
      "group": "by_parts"
    },
    {
      "name": "bymonthday_single_matching_dtstart",
      "rrule": "FREQ=MONTHLY;BYMONTHDAY=15",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYMONTHDAY"
      ],
      "group": "by_parts"
    },
    {
      "name": "bymonthday_negative",
      "rrule": "FREQ=MONTHLY;BYMONTHDAY=-1",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYMONTHDAY"
      ],
      "group": "by_parts"
    },
    {
      "name": "byyearday",
      "rrule": "FREQ=YEARLY;BYYEARDAY=100",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYYEARDAY"
      ],
      "group": "by_parts"
    },
    {
      "name": "byweekno",
      "rrule": "FREQ=YEARLY;BYWEEKNO=20",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYWEEKNO"
      ],
      "group": "by_parts"
    },
    {
      "name": "byhour",
      "rrule": "FREQ=DAILY;BYHOUR=9",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYHOUR"
      ],
      "group": "by_parts"
    },
    {
      "name": "byminute",
      "rrule": "FREQ=DAILY;BYMINUTE=30",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYMINUTE"
      ],
      "group": "by_parts"
    },
    {
      "name": "bysecond",
      "rrule": "FREQ=DAILY;BYSECOND=0",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYSECOND"
      ],
      "group": "by_parts"
    },
    {
      "name": "wkst",
      "rrule": "FREQ=WEEKLY;BYDAY=MO;WKST=SU",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:WKST"
      ],
      "group": "by_parts"
    },
    {
      "name": "rscale",
      "rrule": "FREQ=YEARLY;RSCALE=HEBREW",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:RSCALE"
      ],
      "group": "by_parts"
    },
    {
      "name": "skip",
      "rrule": "FREQ=MONTHLY;SKIP=BACKWARD",
      "dtstart": "20260315T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:SKIP"
      ],
      "group": "by_parts"
    },
    {
      "name": "vendor_x_part",
      "rrule": "FREQ=DAILY;X-CALEE-FOO=1",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:X-CALEE-FOO"
      ],
      "group": "by_parts"
    },
    {
      "name": "unknown_part",
      "rrule": "FREQ=DAILY;BYFOO=1",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "unsupported_part:BYFOO"
      ],
      "group": "by_parts"
    },
    {
      "name": "monthly_day_29",
      "rrule": "FREQ=MONTHLY",
      "dtstart": "20260129T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "monthly_dtstart_day_29_31"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "monthly_day_30",
      "rrule": "FREQ=MONTHLY",
      "dtstart": "20260130T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "monthly_dtstart_day_29_31"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "monthly_day_31",
      "rrule": "FREQ=MONTHLY;COUNT=4",
      "dtstart": "20260131T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "monthly_dtstart_day_29_31"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "monthly_day_31_all_day",
      "rrule": "FREQ=MONTHLY",
      "dtstart": "20260331",
      "tzid": null,
      "allDay": true,
      "state": "degraded_unsupported",
      "reasons": [
        "monthly_dtstart_day_29_31"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "monthly_day_31_floating",
      "rrule": "FREQ=MONTHLY",
      "dtstart": "20260731T020000",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "monthly_dtstart_day_29_31"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "yearly_feb_29",
      "rrule": "FREQ=YEARLY",
      "dtstart": "20240229T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "yearly_dtstart_leap_day"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "yearly_feb_29_all_day",
      "rrule": "FREQ=YEARLY;COUNT=3",
      "dtstart": "20240229",
      "tzid": null,
      "allDay": true,
      "state": "degraded_unsupported",
      "reasons": [
        "yearly_dtstart_leap_day"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "monthly_no_dtstart_evidence",
      "rrule": "FREQ=MONTHLY",
      "dtstart": null,
      "tzid": null,
      "allDay": false,
      "state": "degraded_unsupported",
      "reasons": [
        "dtstart_unreadable"
      ],
      "group": "dtstart_shape"
    },
    {
      "name": "missing_freq",
      "rrule": "INTERVAL=2",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "missing_freq"
      ],
      "group": "malformed"
    },
    {
      "name": "missing_freq_count_only",
      "rrule": "COUNT=3",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "missing_freq"
      ],
      "group": "malformed"
    },
    {
      "name": "unknown_freq",
      "rrule": "FREQ=FORTNIGHTLY",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "unknown_freq"
      ],
      "group": "malformed"
    },
    {
      "name": "interval_zero",
      "rrule": "FREQ=DAILY;INTERVAL=0",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_interval"
      ],
      "group": "malformed"
    },
    {
      "name": "interval_negative",
      "rrule": "FREQ=DAILY;INTERVAL=-1",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_interval"
      ],
      "group": "malformed"
    },
    {
      "name": "interval_alpha",
      "rrule": "FREQ=DAILY;INTERVAL=ABC",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_interval"
      ],
      "group": "malformed"
    },
    {
      "name": "interval_decimal",
      "rrule": "FREQ=DAILY;INTERVAL=1.5",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_interval"
      ],
      "group": "malformed"
    },
    {
      "name": "interval_plus",
      "rrule": "FREQ=DAILY;INTERVAL=+2",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_interval"
      ],
      "group": "malformed"
    },
    {
      "name": "count_zero",
      "rrule": "FREQ=DAILY;COUNT=0",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_count"
      ],
      "group": "malformed"
    },
    {
      "name": "count_alpha",
      "rrule": "FREQ=DAILY;COUNT=ABC",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_count"
      ],
      "group": "malformed"
    },
    {
      "name": "count_negative",
      "rrule": "FREQ=DAILY;COUNT=-3",
      "dtstart": "20260310T090000Z",
      "tzid": null,
      "allDay": false,
      "state": "degraded_invalid",
      "reasons": [
        "invalid_count"
      ],
      "group": "malformed"
    },
    {
      "name": "count_and_until",
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    {
      "name": "integer_bound_interval_999999999999999999999999_invalid",
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    {
      "name": "integer_bound_count_999999999999999999999999_invalid",
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    {
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      "name": "integer_bound_interval_oversized_with_sub_daily",
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    {
      "name": "duplicate_rrule_two_distinct_first_daily",
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    {
      "name": "duplicate_rrule_two_distinct_first_weekly",
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      "name": "duplicate_rrule_identical",
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    {
      "name": "duplicate_rrule_three_properties",
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    {
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    {
      "name": "duplicate_rrule_byday_repeated_token_twice_is_two_properties",
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    {
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    {
      "name": "duplicate_rrule_same_part_twice_is_duplicate_part_not_duplicate_rrule",
      "rrule": "FREQ=DAILY;COUNT=3;COUNT=3",
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  ]
}