noaa-marine-mcp-server

Previous value: -"Maximum number of stations to return. Defaults to 20."New value: +"Stations to return on this page. Default 20; a larger value returns at most 200 and says so."

Removed value: -200

Added value: +1

Previous value: -"integer"New value: +"number"

Added value: +{
+  "default": 0,
+  "description": "Index of the first match to return, for reading a result larger than one page. 0 (default) starts at the first match; pass the next_offset from a previous call to continue. An offset past the last match returns an empty page rather than an error.",
+  "minimum": 0,
+  "multipleOf": 1,
+  "type": "number"
+}

Added value: +{
+  "description": "Offset to pass as offset for the next page. Present only while matches remain past this page.",
+  "type": "number"
+}

Previous value: -"Guidance about the result set: why a search matched nothing, which catalog did not answer, or that the list was capped."New value: +"Guidance about the result set: why a search matched nothing, which catalog did not answer, that limit was clamped to its cap, or which matches this page carries and the offset that reaches the rest."

Previous value: -"Stations matching the search criteria, sorted by distance (if lat/lon provided) or by exact ID match then name. Empty when nothing matched."New value: +"The page of matching stations starting at offset, sorted by distance (if lat/lon provided) or by exact ID match then name, with ties ordered by source and then station ID so every call orders the matches the same way. Empty when nothing matched or offset is past the last match."

Previous value: -"Total stations matching the filters before the limit was applied. Zero when nothing matched."New value: +"Total stations matching the filters, across every page. Zero when nothing matched."

Previous value: -"True when total_found exceeds the limit and not all matching stations are returned. Increase limit or narrow filters to see more."New value: +"True when matches remain past this page; next_offset reaches them. Absent on the last page."

Previous value: -"NDBC buoy station ID (5-character alphanumeric, e.g. \"46041\" for Cape Elizabeth). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"met\"]."New value: +"NDBC station ID (e.g. \"46041\" for Cape Elizabeth). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"met\"]. A 7-digit CO-OPS station ID (e.g. \"8654467\") also works when NDBC relays that gauge's met sensors under a station ID of its own."

Added value: +{
+  "description": "The CO-OPS station ID that was requested, present only when it was read through the NDBC relay in station_id. Use it with the CO-OPS tools (tides, water level, currents); use station_id for NDBC reads. Absent when station_id is the ID requested.",
+  "type": "string"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `buoy_not_found`: NDBC returned 404 for the station ID. `no_sensor_data`: Buoy file exists but all sensor fields are MM (missing) — buoy offline or sensor failure. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `buoy_not_found`: NDBC has no observation file for the station ID and no NDBC station relays it as a CO-OPS gauge; the NDBC station relaying the CO-OPS ID has no observation file either; or several NDBC stations relay it and the met flag does not single one out. `no_sensor_data`: Buoy file exists but all sensor fields are MM (missing) — buoy offline or sensor failure. Also raised for the NDBC relay of a CO-OPS station ID, naming both IDs. Other values are possible when a failure originates below the handler."

Previous value: -"Present when a sensor block other than waves was read from a row older than observed_at, naming each such block, the output fields it fills, and the time those values were measured. Absent when every block outside the wave columns came from the newest row."New value: +"Present when a CO-OPS station ID was read through its NDBC relay (naming both IDs), when a sensor block other than waves was read from a row older than observed_at (naming each such block, the output fields it fills, and the time those values were measured), or both, in one string. Absent for a station read under its own ID whose blocks outside the wave columns all came from the newest row."

Previous value: -"Station ID echoed from the request — for chaining."New value: +"ID of the NDBC station these observations come from: the requested ID, uppercased, or — when a CO-OPS station ID was requested — the NDBC station that relays that gauge's met sensors."

Previous value: -"NDBC station ID (5-character alphanumeric, e.g. \"44033\"). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"current_profile\"]."New value: +"NDBC station ID (mostly 5-character alphanumeric codes, e.g. \"44033\"; some are 7-digit numbers). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"current_profile\"]."

Added value: +50

Previous value: -"Maximum prediction rows to return on this page — max/slack events or 6-minute rows, whichever the interval selects — for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page."New value: +"Prediction rows to return on this page — max/slack events or 6-minute rows, whichever the interval selects. Default 50; a larger value returns at most 1,000 and says so."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Row offset into the matched prediction series — the max/slack events on the MAX_SLACK interval, the 6-minute curve on 6min — for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."New value: +"Row offset into the matched prediction series — the max/slack events on the MAX_SLACK interval, the 6-minute curve on 6min — for reading a range longer than one page. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Max flood, max ebb, and slack events — the whole matched series when it fits one response, otherwise the leading page starting at offset. Present for MAX_SLACK interval, and empty when CO-OPS answered with a statement instead of events — read notice for its wording."New value: +"Max flood, max ebb, and slack events — up to limit events starting at offset, and the whole matched series when it fits one page. Present for MAX_SLACK interval, and empty when CO-OPS answered with a statement instead of events — read notice for its wording."

Previous value: -"CO-OPS's own statement about the station when it returned that instead of prediction events — the answer to report, not a failure — or what this page of the prediction series covers and how to reach the next one."New value: +"CO-OPS's own statement about the station when it returned that instead of prediction events — the answer to report, not a failure — or what this page of the prediction series covers and how to reach the next one. Opens with the requested and applied values when limit was clamped to its cap."

Previous value: -"6-minute continuous current predictions — the whole curve when it fits one response, otherwise the leading page starting at offset. Present for 6min interval, and empty when CO-OPS answered with a statement instead of a curve — read notice for its wording."New value: +"6-minute continuous current predictions — up to limit rows starting at offset, and the whole curve when it fits one page. Present for 6min interval, and empty when CO-OPS answered with a statement instead of a curve — read notice for its wording."

Previous value: -"Datum the monthly heights are referenced to. MLLW (default) is the US nautical chart datum; MHHW, MHW, MTL, MSL, and MLW are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and reads any station. IGLD and LWD apply at Great Lakes stations only, which carry no tidal datum, and CRD at Columbia River stations only. A datum this station does not carry comes back as datum_unavailable."New value: +"Datum the monthly heights are referenced to. MLLW (default) is the US nautical chart datum; MHHW, MHW, MTL, MSL, and MLW are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and reads any station. IGLD and LWD apply at Great Lakes stations only, which carry no tidal datum, and CRD at Columbia River stations only. A datum this station does not carry comes back as datum_unavailable, whose hint names a datum to retry with, and a station with no water-level gauge at all as no_gauge."

Added value: +24

Previous value: -"Maximum months to return on this page, for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page."New value: +"Months to return on this page. Default 24; a larger value returns at most 1,000 and says so."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Month offset into the matched series, for reading a range whose months do not fit one response. 0 (default) starts at the first month; pass the next_offset from a previous call to continue. An offset past the last month returns an empty page rather than an error."New value: +"Month offset into the matched series, for reading a range longer than one page. 0 (default) starts at the first month; pass the next_offset from a previous call to continue. An offset past the last month returns an empty page rather than an error."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: The requested range spans more than 73,000 days, the CO-OPS limit for monthly means. `station_not_found`: CO-OPS rejected the station ID as not a valid station. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and IGLD and LWD apply at Great Lakes stations only. `verified_data_lag`: CO-OPS returned no months for a window ending on or after the first day of the prior month, which it may not have verified yet. `no_data`: CO-OPS returned no months for a window ending before the prior month — the station has no monthly means for it. `upstream_throttled`: CO-OPS answered the monthly-mean request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: The requested range spans more than 73,000 days, the CO-OPS limit for monthly means. `station_not_found`: CO-OPS rejected the station ID as not a valid station. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and IGLD and LWD apply at Great Lakes stations only. `no_gauge`: CO-OPS rejected the datum at a station that is in neither its active nor its historic water-level station list, so the station has never had a water-level gauge and publishes no monthly means at any datum. `verified_data_lag`: CO-OPS returned no months for a window ending on or after the first day of the prior month, which it may not have verified yet. `no_data`: CO-OPS returned no months for a window ending before the prior month — the station has no monthly means for it. `upstream_throttled`: CO-OPS answered the monthly-mean request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_date_range",
-  "date_range_exceeded",
-  "station_not_found",
-  "datum_unavailable",
-  "verified_data_lag",
-  "no_data",
-  "upstream_throttled"
-]New value: +[
+  "invalid_date_range",
+  "date_range_exceeded",
+  "station_not_found",
+  "datum_unavailable",
+  "no_gauge",
+  "verified_data_lag",
+  "no_data",
+  "upstream_throttled"
+]

Previous value: -"One row per station-month in the requested range, oldest first — the whole matched series when it fits one response, otherwise the leading page starting at offset. rows_matched and next_offset report what a page left behind."New value: +"One row per station-month in the requested range, oldest first — the whole matched series when it holds at most limit months, otherwise the page of up to limit months starting at offset. rows_matched and next_offset report what a page left behind."

Previous value: -"What this page of the monthly series covers and how to reach the next page."New value: +"That limit was clamped to its cap, then what this page of the monthly series covers and how to reach the next page — whichever apply, composed into one string."

Previous value: -"NDBC station ID (5-character alphanumeric, e.g. \"44033\" or \"TIBC1\"). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"water_quality\"]."New value: +"NDBC station ID (mostly 5-character alphanumeric codes, e.g. \"44033\" or \"TIBC1\"; some are 7-digit numbers). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"water_quality\"]."

Previous value: -"Datum the predicted heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, MLW, and DTL (diurnal tide level) are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. CRD applies at Columbia River stations only. A datum this station does not carry comes back as datum_unavailable naming the ones it does."New value: +"Datum the predicted heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, MLW, and DTL (diurnal tide level) are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. CRD applies at Columbia River stations only. A datum this station does not carry comes back as datum_unavailable, whose hint names a datum to retry with."

Added value: +50

Previous value: -"Maximum prediction rows to return on this page, for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page."New value: +"Prediction rows to return on this page. Default 50; a larger value returns at most 1,000 and says so."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Row offset into the matched prediction series, for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."New value: +"Row offset into the matched prediction series, for reading a range longer than one page. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"What this page of the prediction series covers and how to reach the next one. Present only when the response is a page rather than the whole matched series."New value: +"What this page of the prediction series covers and how to reach the next one, opening with the requested and applied values when limit was clamped to its cap. Present when the response is a page rather than the whole matched series, or limit was clamped."

Previous value: -"Tide predictions for the requested date range — the whole series when it fits one response, otherwise the leading page starting at offset. rows_matched and next_offset report what a page left behind."New value: +"Tide predictions for the requested date range — up to limit rows starting at offset, and the whole series when it fits one page. rows_matched and next_offset report what a page left behind."

Previous value: -"Datum the observed heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, and MLW are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. IGLD and LWD apply at Great Lakes stations only, CRD at Columbia River stations only, and LWI and HWI are lunitidal intervals rather than heights. A datum this station does not carry comes back as datum_unavailable naming the ones it does."New value: +"Datum the observed heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, and MLW are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. IGLD and LWD apply at Great Lakes stations only, CRD at Columbia River stations only, and LWI and HWI are lunitidal intervals rather than heights. A datum this station does not carry comes back as datum_unavailable, whose hint names a datum to retry with, and a station with no water-level gauge at all as no_gauge."

Added value: +50

Previous value: -"Maximum observation rows to return on this page, for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page."New value: +"Observation rows to return on this page; predictions cover the same time span. Default 50; a larger value returns at most 1,000 and says so."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Row offset into the matched observation series, for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."New value: +"Row offset into the matched observation series, for reading a range longer than one page. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error."

Removed value: -9007199254740991

Added value: +1

Previous value: -"integer"New value: +"number"

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range — including an hourly, high_low, or daily_mean window ending before the prior month, which is not a verification lag. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for a window ending on or after the first day of the prior month, which CO-OPS may not have verified yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range — including an hourly, high_low, or daily_mean window ending before the prior month, which is not a verification lag. `future_window`: begin_date is after the station's current date in the zone CO-OPS reads the dates in — the UTC date under time_zone gmt, the station's local date under lst and lst_ldt and on interval daily_mean — so no observation in the window exists yet. `no_gauge`: CO-OPS rejected the datum at a station that is in neither its active nor its historic water-level station list, so the station has never had a water-level gauge and holds no observed water levels at any datum. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for a window ending on or after the first day of the prior month, which CO-OPS may not have verified yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_data",
-  "great_lakes_only",
-  "verified_data_lag",
-  "datum_unavailable",
-  "upstream_throttled"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_data",
+  "future_window",
+  "no_gauge",
+  "great_lakes_only",
+  "verified_data_lag",
+  "datum_unavailable",
+  "upstream_throttled"
+]

Previous value: -"Why the paired prediction series is missing or carries no residual, how many sample slots were dropped, and what this page of the observed series covers — whichever of those apply, composed into one string."New value: +"That limit was clamped to its cap, why the paired prediction series is missing or carries no residual, how many sample slots were dropped, and what this page of the observed series covers — whichever of those apply, composed into one string in that order."

Previous value: -"Observed water level readings at the requested cadence — the whole matched series when it fits one response, otherwise the leading page starting at offset. rows_matched and next_offset report what a page left behind."New value: +"Observed water level readings at the requested cadence — the whole matched series when it holds at most limit rows, otherwise the page of up to limit rows starting at offset. rows_matched and next_offset report what a page left behind."

Previous value: -"Paired tide predictions covering the same period as the returned observations, at the interval matching the observed cadence. Always empty on the daily_mean interval, which has no paired series. Otherwise empty when CO-OPS returned no predictions for this station and range, or when the prediction fetch failed — predictions_status says which."New value: +"Paired tide predictions covering the same period as the returned observations, at the interval matching the observed cadence. Every prediction in the page span is included and none repeats across pages, so a page whose span crosses a sensor outage carries more predictions than observations. Always empty on the daily_mean interval, which has no paired series. Otherwise empty when CO-OPS returned no predictions for this station and range, or when the prediction fetch failed — predictions_status says which."

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS rejected the station ID as unknown or invalid — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the requested date range. `predictions_unavailable`: The station is in the current-predictions catalog, but CO-OPS publishes no current predictions for it at any date. `bin_unavailable`: CO-OPS rejected the requested bin because the station publishes no predictions at that bin. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS rejected the station ID as unknown or invalid — current stations require alphanumeric IDs. `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the requested date range. `predictions_unavailable`: The station is in the current-predictions catalog, but CO-OPS publishes no current predictions for it at any date. `bin_unavailable`: CO-OPS rejected the requested bin because the station publishes no predictions at that bin. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: The requested range spans more than 73,000 days, the CO-OPS limit for monthly means. `station_not_found`: CO-OPS rejected the station ID as not a valid station. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and IGLD and LWD apply at Great Lakes stations only. `verified_data_lag`: CO-OPS returned no months for a window ending on or after the first day of the prior month, which it may not have verified yet. `no_data`: CO-OPS returned no months for a window ending before the prior month — the station has no monthly means for it. `upstream_throttled`: CO-OPS answered the monthly-mean request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: The requested range spans more than 73,000 days, the CO-OPS limit for monthly means. `station_not_found`: CO-OPS rejected the station ID as not a valid station. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and IGLD and LWD apply at Great Lakes stations only. `verified_data_lag`: CO-OPS returned no months for a window ending on or after the first day of the prior month, which it may not have verified yet. `no_data`: CO-OPS returned no months for a window ending before the prior month — the station has no monthly means for it. `upstream_throttled`: CO-OPS answered the monthly-mean request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. `subordinate_no_6min`: interval=\"6min\" was requested for a subordinate station, whose predictions are high and low events derived from a reference station. `datum_unavailable`: The station does not carry the requested datum — NAVD reads only where the station has an NAVD88 tie, and CRD only on the Columbia River. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. `subordinate_no_6min`: interval=\"6min\" was requested for a subordinate station, whose predictions are high and low events derived from a reference station. `datum_unavailable`: The station does not carry the requested datum — NAVD reads only where the station has an NAVD88 tie, and CRD only on the Columbia River. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range — including an hourly, high_low, or daily_mean window ending before the prior month, which is not a verification lag. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for a window ending on or after the first day of the prior month, which CO-OPS may not have verified yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date or end_date is not a real calendar date, or the range starts after it ends. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range — including an hourly, high_low, or daily_mean window ending before the prior month, which is not a verification lag. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for a window ending on or after the first day of the prior month, which CO-OPS may not have verified yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -"Filter value. Six are data capabilities, matched against a station's capabilities list: tide (CO-OPS tide predictions → noaa_marine_get_tide_predictions), current (CO-OPS tidal-current predictions → noaa_marine_get_currents), water_level (CO-OPS observed water levels → noaa_marine_get_water_level), met (NDBC meteorological → noaa_marine_get_conditions), current_profile (NDBC observed ocean-current depth profile → noaa_marine_get_current_profile; note this is a different data product and source than CO-OPS `current`), water_quality (NDBC sub-surface water-column sensors → noaa_marine_get_ocean_observations). The seventh, buoy, is a physical-platform filter (NDBC platform class equals buoy), not a data capability — use it to select buoy-class platforms regardless of what data they serve."New value: +"Filter value. Six are data capabilities, matched against a station's capabilities list: tide (CO-OPS tide predictions → noaa_marine_get_tide_predictions), current (CO-OPS tidal-current predictions → noaa_marine_get_currents), water_level (CO-OPS observed water levels → noaa_marine_get_water_level, and their verified monthly means → noaa_marine_get_monthly_means), met (NDBC meteorological → noaa_marine_get_conditions), current_profile (NDBC observed ocean-current depth profile → noaa_marine_get_current_profile; note this is a different data product and source than CO-OPS `current`), water_quality (NDBC sub-surface water-column sensors → noaa_marine_get_ocean_observations). The seventh, buoy, is a physical-platform filter (NDBC platform class equals buoy), not a data capability — use it to select buoy-class platforms regardless of what data they serve."

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for the window, which CO-OPS has not published yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range — including an hourly, high_low, or daily_mean window ending before the prior month, which is not a verification lag. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for a window ending on or after the first day of the prior month, which CO-OPS may not have verified yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -"Filter by 2-letter US state or territory code. Applies to CO-OPS stations only — providing it restricts results to CO-OPS and excludes NDBC buoys (which carry no state). E.g. \"WA\", \"CA\", \"PR\"."New value: +"Filter by 2-letter US state or territory code. Applies to CO-OPS stations only — providing it restricts results to CO-OPS and excludes NDBC buoys (which carry no state). A station matches on its own catalog code, or — when its catalog rows carry none, as with every current station — on the state of the nearest state-bearing CO-OPS tide or water-level station within 25 km, which can be wrong on waters shared across a state or national border. E.g. \"WA\", \"CA\", \"PR\"."

Previous value: -"The state filter applied. Restricts results to CO-OPS and excludes NDBC."New value: +"The state filter applied, matched against each station's resolved state: its own catalog code, or for a station publishing none the state of the nearest state-bearing CO-OPS tide or water-level station within 25 km. Restricts results to CO-OPS and excludes NDBC."

Previous value: -"US state or territory code (CO-OPS stations only)."New value: +"US state or territory code (CO-OPS stations only): the station's own catalog code, or — when its catalog rows carry none, as with every current station — the state of the nearest state-bearing CO-OPS tide or water-level station within 25 km, marked by state_derived. A derived state can be wrong on waters shared across a state or national border. When neither applies, the station's own non-code catalog value (e.g. FM) is shown as published and unmarked — no state filter returns such a station, since the filter takes codes only. Omitted when the station publishes nothing at all and no state-bearing station is that close."

Added value: +{
+  "description": "True when state was derived from the nearest state-bearing CO-OPS tide or water-level station within 25 km, because the station's own catalog rows carry no state code. Omitted when state is the station's own.",
+  "type": "boolean"
+}

Previous value: -"Start date in YYYYMMDD format, e.g. \"20240601\"."New value: +"Start date, YYYYMMDD or YYYY-MM-DD, e.g. \"20240601\" or \"2024-06-01\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"End date in YYYYMMDD format (inclusive), e.g. \"20240607\"."New value: +"End date (inclusive), YYYYMMDD or YYYY-MM-DD, e.g. \"20240607\" or \"2024-06-07\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS rejected the station ID as unknown or invalid — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the requested date range. `predictions_unavailable`: The station is in the current-predictions catalog, but CO-OPS publishes no current predictions for it at any date. `bin_unavailable`: CO-OPS rejected the requested bin because the station publishes no predictions at that bin. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS rejected the station ID as unknown or invalid — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the requested date range. `predictions_unavailable`: The station is in the current-predictions catalog, but CO-OPS publishes no current predictions for it at any date. `bin_unavailable`: CO-OPS rejected the requested bin because the station publishes no predictions at that bin. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_predictions",
-  "predictions_unavailable",
-  "bin_unavailable"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_predictions",
+  "predictions_unavailable",
+  "bin_unavailable",
+  "upstream_throttled"
+]

Previous value: -"Start date in YYYYMMDD format, e.g. \"20240601\"."New value: +"Start date, YYYYMMDD or YYYY-MM-DD, e.g. \"20240601\" or \"2024-06-01\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"End date in YYYYMMDD format (inclusive), e.g. \"20240607\"."New value: +"End date (inclusive), YYYYMMDD or YYYY-MM-DD, e.g. \"20240607\" or \"2024-06-07\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. `subordinate_no_6min`: interval=\"6min\" was requested for a subordinate station, whose predictions are high and low events derived from a reference station. `datum_unavailable`: The station does not carry the requested datum — NAVD reads only where the station has an NAVD88 tie, and CRD only on the Columbia River. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. `subordinate_no_6min`: interval=\"6min\" was requested for a subordinate station, whose predictions are high and low events derived from a reference station. `datum_unavailable`: The station does not carry the requested datum — NAVD reads only where the station has an NAVD88 tie, and CRD only on the Columbia River. `upstream_throttled`: CO-OPS answered HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_predictions",
-  "subordinate_no_6min",
-  "datum_unavailable"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_predictions",
+  "subordinate_no_6min",
+  "datum_unavailable",
+  "upstream_throttled"
+]

Previous value: -"Start date in YYYYMMDD format, e.g. \"20240601\"."New value: +"Start date, YYYYMMDD or YYYY-MM-DD, e.g. \"20240601\" or \"2024-06-01\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"End date in YYYYMMDD format (inclusive), e.g. \"20240601\"."New value: +"End date (inclusive), YYYYMMDD or YYYY-MM-DD, e.g. \"20240601\" or \"2024-06-01\"."

Previous value: -"^\\d{8}$"New value: +"^(\\d{8}|\\d{4}-\\d{2}-\\d{2})$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for the window, which CO-OPS has not published yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date. `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for the window, which CO-OPS has not published yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. `upstream_throttled`: CO-OPS answered the observed-series request with HTTP 403, which it returns for about two minutes while it throttles a burst of requests from one address. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_data",
-  "great_lakes_only",
-  "verified_data_lag",
-  "datum_unavailable"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_data",
+  "great_lakes_only",
+  "verified_data_lag",
+  "datum_unavailable",
+  "upstream_throttled"
+]

Previous value: -"Maximum negative residual magnitude in the requested units (feet for english, meters for metric) — anomalous drawdown indicator."New value: +"Maximum negative residual magnitude in the requested units (feet for english, meters for metric) — anomalous drawdown indicator. 0 when the observed level never fell below prediction in the range."

Previous value: -"Maximum positive residual (observed − predicted) in the requested units (feet for english, meters for metric) — storm surge indicator."New value: +"Maximum positive residual (observed − predicted) in the requested units (feet for english, meters for metric) — storm surge indicator. 0 when the observed level never rose above prediction in the range."

Added value: +{
+  "description": "Depth bins this current station publishes predictions for, in the order CO-OPS publishes them. Each bin has its own depth and prediction class, and its bin number is what noaa_marine_get_currents takes as bin. Omitted for a station with no current-prediction rows.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One depth bin CO-OPS publishes current predictions for at this station, with its depth and prediction class.",
+    "properties": {
+      "bin": {
+        "description": "CO-OPS bin number — pass it as the bin input of noaa_marine_get_currents. Omitting bin there selects the shallowest bin.",
+        "type": "number"
+      },
+      "depth": {
+        "description": "Bin depth in FEET. The catalog publishes one figure with no unit switch, unlike the depth noaa_marine_get_currents echoes, which follows that call's units. Null when CO-OPS publishes no depth for the bin, which is usual where depth_type is U.",
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "depth_type": {
+        "description": "CO-OPS depth-reference code as published: B, S, or U. A U bin usually carries no depth. Omitted when the catalog row has none.",
+        "type": "string"
+      },
+      "prediction_class": {
+        "description": "CO-OPS prediction class for this bin: harmonic (predicted from the bin's own harmonic analysis) or subordinate (derived by offsets from a reference station) both serve the normal flood/ebb/slack series, while weak_and_variable may instead answer noaa_marine_get_currents with a coverage statement and no events, or report that no predictions are published at all. The class is per bin because one station can mix classes across its bins. An unrecognized catalog code is passed through verbatim.",
+        "type": "string"
+      }
+    },
+    "required": [
+      "bin",
+      "depth"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "CO-OPS TIDE-prediction class: reference (predicted from the station's own harmonic analysis, serving both hilo and the 6-minute curve) or subordinate (high and low events derived as offsets from a reference station, hilo only — noaa_marine_get_tide_predictions rejects interval=\"6min\" for it). A third axis beside type/capabilities (data products) and platform (NDBC physical class). Omitted for a station with no tide-prediction row; a current station carries its class per bin in bins[], where subordinate means something different. An unrecognized catalog code is passed through verbatim.",
+  "type": "string"
+}

Added value: +{
+  "description": "The reference station a subordinate tide station derives its offsets from — the station to request a 6-minute curve from. Omitted for a reference station and for any station with no tide-prediction row.",
+  "type": "string"
+}

Added value: +{
+  "description": "Depth bin to predict for, taken from the bins[] array on a noaa_marine_find_stations current row (e.g. 15, 10 or 1 at PUG1515). Omit to take the CO-OPS default, which is the shallowest bin. A bin the station does not publish comes back as bin_unavailable naming the bins it does.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "Maximum prediction rows to return on this page — max/slack events or 6-minute rows, whichever the interval selects — for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page.",
+  "maximum": 9007199254740991,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +{
+  "default": 0,
+  "description": "Row offset into the matched prediction series — the max/slack events on the MAX_SLACK interval, the 6-minute curve on 6min — for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

Previous value: -"Unit system: english = knots; metric = m/s."New value: +"Unit system: english = knots for speed and feet for the echoed depth; metric = cm/s for speed (not m/s) and meters for the echoed depth."

Previous value: -[
-  {
-    "not": {
-      "required": [
-        "error"
-      ]
-    },
-    "required": [
-      "station_id",
-      "station_name",
-      "units"
-    ]
-  },
-  {
-    "required": [
-      "error"
-    ]
-  }
-]New value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "units",
+      "bin",
+      "depth"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "description": "Depth bin CO-OPS answered with — the requested bin, or its default shallowest bin when none was requested. Null when the response carried no prediction rows.",
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Depth of the returned bin, in the requested units: feet under english, meters under metric. Distinct from the bins[].depth on a noaa_marine_find_stations row, which the catalog always publishes in feet. Null when CO-OPS publishes no depth for the bin, or when the response carried no prediction rows.",
+  "type": [
+    "number",
+    "null"
+  ]
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the date range. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS rejected the station ID as unknown or invalid — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the requested date range. `predictions_unavailable`: The station is in the current-predictions catalog, but CO-OPS publishes no current predictions for it at any date. `bin_unavailable`: CO-OPS rejected the requested bin because the station publishes no predictions at that bin. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_predictions"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_predictions",
+  "predictions_unavailable",
+  "bin_unavailable"
+]

Previous value: -"Max flood, max ebb, and slack events. Present for MAX_SLACK interval."New value: +"Max flood, max ebb, and slack events — the whole matched series when it fits one response, otherwise the leading page starting at offset. Present for MAX_SLACK interval, and empty when CO-OPS answered with a statement instead of events — read notice for its wording."

Previous value: -"True bearing direction in degrees (0–360). Absent for slack events."New value: +"The station's mean flood direction on a flood event and its mean ebb direction on an ebb event, as a true bearing in degrees (0–360). A station constant, not an instantaneous heading. Absent for slack events and wherever CO-OPS reports no mean direction."

Previous value: -"Current speed in the requested units. Absent for slack events."New value: +"Peak speed as a non-negative magnitude, in the requested units. Absent when CO-OPS reports no speed for the event, which is the usual case at slack water — though a slack event can carry a small residual speed under metric units."

Added value: +{
+  "anyOf": [
+    {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Offset to pass as offset on the next call, or null when this page reaches the last matched row. Absent when the whole matched series was returned."
+}

Added value: +{
+  "description": "CO-OPS's own statement about the station when it returned that instead of prediction events — the answer to report, not a failure — or what this page of the prediction series covers and how to reach the next one.",
+  "type": "string"
+}

Added value: +{
+  "description": "Row offset this page starts at, echoed from the request. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Previous value: -"6-minute continuous current predictions. Present for 6min interval."New value: +"6-minute continuous current predictions — the whole curve when it fits one response, otherwise the leading page starting at offset. Present for 6min interval, and empty when CO-OPS answered with a statement instead of a curve — read notice for its wording."

Previous value: -"True bearing direction in degrees (0–360). Null when CO-OPS does not report direction for this station type."New value: +"The station's mean flood direction on a flood row and its mean ebb direction on an ebb row, as a true bearing in degrees (0–360). A station constant, not an instantaneous heading. Null on a slack row and wherever CO-OPS reports no mean direction."

Previous value: -"Current speed in the requested units."New value: +"Current speed as a non-negative magnitude, in the requested units."

Added value: +{
+  "description": "Flow sense at this row, from the sign of the speed CO-OPS predicts: flood (inbound), ebb (outbound), or slack (zero). speed is a non-negative magnitude, so this is what carries which way the water is moving.",
+  "enum": [
+    "flood",
+    "ebb",
+    "slack"
+  ],
+  "type": "string"
+}

Previous value: -[
-  "time",
-  "speed",
-  "direction"
-]New value: +[
+  "time",
+  "type",
+  "speed",
+  "direction"
+]

Added value: +{
+  "description": "Prediction rows the requested date range matched, before the page was cut. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "Prediction rows this page carries — the length of events on the MAX_SLACK interval, of predictions on 6min. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "True when this page stops short of the last matched row, so further rows remain at next_offset. False on the final page and on a page past the end. Absent when the whole matched series was returned.",
+  "type": "boolean"
+}

Previous value: -"Speed units: \"english\" (knots) or \"metric\" (m/s)."New value: +"Unit system these values are in: \"english\" (speed in knots, depth in feet) or \"metric\" (speed in cm/s, depth in meters)."

Previous value: -"Tidal datum reference plane. MLLW (default) is the US nautical chart datum. MSL = mean sea level; MHHW = mean higher high water (flooding reference)."New value: +"Datum the predicted heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, MLW, and DTL (diurnal tide level) are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. CRD applies at Columbia River stations only. A datum this station does not carry comes back as datum_unavailable naming the ones it does."

Previous value: -[
-  "MLLW",
-  "MHHW",
-  "MSL",
-  "MTL",
-  "MHW",
-  "MLW",
-  "CD",
-  "STND"
-]New value: +[
+  "MLLW",
+  "MHHW",
+  "MHW",
+  "MTL",
+  "MSL",
+  "MLW",
+  "DTL",
+  "NAVD",
+  "STND",
+  "CRD"
+]

Previous value: -"Prediction interval: hilo (default) returns only high and low tide events; 6min returns a continuous prediction curve at 6-minute intervals."New value: +"Prediction interval: hilo (default) returns only high and low tide events; 6min returns a continuous prediction curve at 6-minute intervals, and is served only by a reference station — a subordinate station has no 6-minute curve."

Added value: +{
+  "description": "Maximum prediction rows to return on this page, for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page.",
+  "maximum": 9007199254740991,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +{
+  "default": 0,
+  "description": "Row offset into the matched prediction series, for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. `subordinate_no_6min`: interval=\"6min\" was requested for a subordinate station, whose predictions are high and low events derived from a reference station. `datum_unavailable`: The station does not carry the requested datum — NAVD reads only where the station has an NAVD88 tie, and CRD only on the Columbia River. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_predictions"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_predictions",
+  "subordinate_no_6min",
+  "datum_unavailable"
+]

Added value: +{
+  "anyOf": [
+    {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Offset to pass as offset on the next call, or null when this page reaches the last matched row. Absent when the whole matched series was returned."
+}

Added value: +{
+  "description": "What this page of the prediction series covers and how to reach the next one. Present only when the response is a page rather than the whole matched series.",
+  "type": "string"
+}

Added value: +{
+  "description": "Row offset this page starts at, echoed from the request. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Previous value: -"Tide predictions for the requested date range."New value: +"Tide predictions for the requested date range — the whole series when it fits one response, otherwise the leading page starting at offset. rows_matched and next_offset report what a page left behind."

Added value: +{
+  "description": "Prediction rows the requested date range matched, before the page was cut. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "Prediction rows this page carries — the length of predictions. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "True when this page stops short of the last matched row, so further rows remain at next_offset. False on the final page and on a page past the end. Absent when the whole matched series was returned.",
+  "type": "boolean"
+}

Previous value: -"Tidal datum reference plane. MLLW (default) is the US nautical chart datum. MSL = mean sea level; MHHW = mean higher high water (flooding reference)."New value: +"Datum the observed heights are referenced to. MLLW (default) is the US nautical chart datum, and MHHW (mean higher high water) is the flooding reference; MHW, MTL, MSL, and MLW are the other tidal planes. NAVD is NAVD88 and reads only where the station has an NAVD88 tie. STND is the station's own datum and is the plane that works where no tidal datum exists. IGLD and LWD apply at Great Lakes stations only, CRD at Columbia River stations only, and LWI and HWI are lunitidal intervals rather than heights. A datum this station does not carry comes back as datum_unavailable naming the ones it does."

Previous value: -[
-  "MLLW",
-  "MHHW",
-  "MSL",
-  "MTL",
-  "MHW",
-  "MLW",
-  "CD",
-  "STND"
-]New value: +[
+  "MLLW",
+  "MHHW",
+  "MHW",
+  "MTL",
+  "MSL",
+  "MLW",
+  "NAVD",
+  "STND",
+  "IGLD",
+  "LWD",
+  "CRD",
+  "LWI",
+  "HWI"
+]

Added value: +{
+  "default": "6min",
+  "description": "Observed cadence. 6min (default) is the full curve, 31 days per request, the only one carrying a quality flag. hourly is hourly heights, 365 days per request, and reports a residual against the hourly prediction series. high_low is the observed high and low waters with their H/HH/L/LL classification, 365 days per request, and reports no residual because observed extremes do not fall on predicted extreme times. daily_mean is the daily mean water level, 3655 days per request, published at Great Lakes stations only and with no paired prediction series; a coastal station comes back as great_lakes_only.",
+  "enum": [
+    "6min",
+    "hourly",
+    "high_low",
+    "daily_mean"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Maximum observation rows to return on this page, for a caller that wants fewer than the response budget allows. Omit for the largest page that fits; a value larger than the budget allows does not widen the page.",
+  "maximum": 9007199254740991,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +{
+  "default": 0,
+  "description": "Row offset into the matched observation series, for reading a range whose rows do not fit one response. 0 (default) starts at the first row; pass the next_offset from a previous call to continue. An offset past the last row returns an empty page rather than an error.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

Previous value: -"Time zone for returned timestamps. lst_ldt = local standard/daylight time (default); gmt = UTC; lst = local standard time year-round."New value: +"Time zone for returned timestamps. lst_ldt = local standard/daylight time (default); gmt = UTC; lst = local standard time year-round. Overridden to lst on interval=\"daily_mean\", which CO-OPS serves in local standard time only and otherwise stamps every row a day off."

Previous value: -[
-  {
-    "not": {
-      "required": [
-        "error"
-      ]
-    },
-    "required": [
-      "station_id",
-      "station_name",
-      "datum",
-      "units",
-      "observations",
-      "predictions"
-    ]
-  },
-  {
-    "required": [
-      "error"
-    ]
-  }
-]New value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "datum",
+      "units",
+      "interval",
+      "observations",
+      "predictions"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 31-day CO-OPS limit for 6-minute water level data. `no_data`: Station exists but no observed water-level data for the date range. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the selected interval's CO-OPS limit — 31 days for 6min, 365 for hourly and high_low, 3655 for daily_mean. `no_data`: Station exists but no observed water-level data for the date range. `great_lakes_only`: interval=\"daily_mean\" was requested for a coastal station — CO-OPS publishes water-level daily means at Great Lakes stations only. `verified_data_lag`: The hourly, high_low, or daily_mean product returned no rows for the window, which CO-OPS has not published yet. `datum_unavailable`: The station does not carry the requested datum — a Great Lakes station has no tidal datum, and NAVD reads only where the station has an NAVD88 tie. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "station_not_found",
-  "invalid_date_range",
-  "date_range_exceeded",
-  "no_data"
-]New value: +[
+  "station_not_found",
+  "invalid_date_range",
+  "date_range_exceeded",
+  "no_data",
+  "great_lakes_only",
+  "verified_data_lag",
+  "datum_unavailable"
+]

Added value: +{
+  "description": "Number of sample slots CO-OPS sent with no reading, dropped from observations. Present only when there was at least one. The observed series is therefore not continuous across the requested range: it has this many missing slots, and rows_matched counts only the slots that carry a value.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "Observed cadence echoed from the request — the CO-OPS product these rows came from, and what decides whether quality, type, and residual_summary are populated.",
+  "enum": [
+    "6min",
+    "hourly",
+    "high_low",
+    "daily_mean"
+  ],
+  "type": "string"
+}

Added value: +{
+  "anyOf": [
+    {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Offset to pass as offset on the next call, or null when this page reaches the last matched observation. Absent when the whole matched series was returned."
+}

Previous value: -"Why the paired prediction series is missing, when it is missing."New value: +"Why the paired prediction series is missing or carries no residual, how many sample slots were dropped, and what this page of the observed series covers — whichever of those apply, composed into one string."

Previous value: -"6-minute observed water level readings."New value: +"Observed water level readings at the requested cadence — the whole matched series when it fits one response, otherwise the leading page starting at offset. rows_matched and next_offset report what a page left behind."

Previous value: -"A single 6-minute observed water level reading."New value: +"A single observed water level reading at the requested cadence."

Previous value: -"Quality flag: p = preliminary, v = verified."New value: +"Quality flag: p = preliminary, v = verified. Present on the 6min interval only — CO-OPS sends no flag with the hourly, high_low, or daily_mean products, which are verified data, so the field is absent rather than defaulted to preliminary."

Previous value: -"Standard deviation of the water level sensor reading."New value: +"Standard deviation of the water level sensor reading. Present on the 6min and hourly intervals; CO-OPS sends none for high_low or daily_mean."

Added value: +{
+  "description": "Observed extreme classification on the high_low interval: H = high water, HH = higher high water, L = low water, LL = lower low water. Absent on every other interval.",
+  "enum": [
+    "H",
+    "HH",
+    "L",
+    "LL"
+  ],
+  "type": "string"
+}

Previous value: -[
-  "time",
-  "value",
-  "quality"
-]New value: +[
+  "time",
+  "value"
+]

Added value: +{
+  "description": "Observation row offset this page starts at, echoed from the request. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Previous value: -"Paired 6-minute tide predictions for the same period. Empty when CO-OPS returned no predictions for this station and range, or when the prediction fetch failed — predictions_status says which."New value: +"Paired tide predictions covering the same period as the returned observations, at the interval matching the observed cadence. Always empty on the daily_mean interval, which has no paired series. Otherwise empty when CO-OPS returned no predictions for this station and range, or when the prediction fetch failed — predictions_status says which."

Previous value: -"A single 6-minute tide prediction."New value: +"A single tide prediction."

Previous value: -"Prediction datetime matching the observation time step."New value: +"Prediction datetime in the requested time zone."

Previous value: -"Present only when predictions is empty. \"empty\" means CO-OPS returned no prediction rows for this station and date range; \"unavailable\" means the prediction fetch failed, so no comparison series could be retrieved and the absence says nothing about the station. Absent when predictions were returned."New value: +"Present only when predictions is empty on an interval that has a paired series. \"empty\" means CO-OPS returned no prediction rows for this station and date range; \"unavailable\" means the prediction fetch failed, so no comparison series could be retrieved and the absence says nothing about the station. Absent when predictions were returned, and on the daily_mean interval, which has no paired series to report on."

Previous value: -"Summary of observed-minus-predicted residuals in the requested units. Only present when both observations and predictions are available."New value: +"Summary of observed-minus-predicted residuals in the requested units, computed across the whole matched series rather than the returned page — so a paged response still reports the largest surge in the range. Present only on the 6min and hourly intervals, and only when both series are available; the notice says why it is absent on high_low and daily_mean."

Added value: +{
+  "description": "Observation rows the requested date range matched, before the page was cut. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "Observation rows this page carries — the length of observations. Absent when the whole matched series was returned.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "True when this page stops short of the last matched observation, so further rows remain at next_offset. False on the final page and on a page past the end. Absent when the whole matched series was returned.",
+  "type": "boolean"
+}

Previous value: -"Station name substring to match, case-insensitive. E.g. \"seattle\", \"puget sound\". NDBC rows also match on station ID. Blank or whitespace-only values are treated as omitted."New value: +"Station name or station ID substring to match, case-insensitive, on both sources. E.g. \"seattle\", \"puget sound\", \"9447130\", \"46041\". A station whose ID matches exactly is returned ahead of name matches, unless latitude/longitude were supplied — a proximity search orders by distance instead. Blank or whitespace-only values are treated as omitted."

Previous value: -"Filter value. Five are data capabilities, matched against a station's capabilities list: tide (CO-OPS tide predictions → noaa_marine_get_tide_predictions), current (CO-OPS tidal-current predictions → noaa_marine_get_currents), water_level (CO-OPS observed water levels → noaa_marine_get_water_level), met (NDBC meteorological → noaa_marine_get_conditions), current_profile (NDBC observed ocean-current depth profile → noaa_marine_get_current_profile; note this is a different data product and source than CO-OPS `current`). The sixth, buoy, is a physical-platform filter (NDBC platform class equals buoy), not a data capability — use it to select buoy-class platforms regardless of what data they serve."New value: +"Filter value. Six are data capabilities, matched against a station's capabilities list: tide (CO-OPS tide predictions → noaa_marine_get_tide_predictions), current (CO-OPS tidal-current predictions → noaa_marine_get_currents), water_level (CO-OPS observed water levels → noaa_marine_get_water_level), met (NDBC meteorological → noaa_marine_get_conditions), current_profile (NDBC observed ocean-current depth profile → noaa_marine_get_current_profile; note this is a different data product and source than CO-OPS `current`), water_quality (NDBC sub-surface water-column sensors → noaa_marine_get_ocean_observations). The seventh, buoy, is a physical-platform filter (NDBC platform class equals buoy), not a data capability — use it to select buoy-class platforms regardless of what data they serve."

Previous value: -[
-  "tide",
-  "current",
-  "water_level",
-  "met",
-  "current_profile",
-  "buoy"
-]New value: +[
+  "tide",
+  "current",
+  "water_level",
+  "met",
+  "current_profile",
+  "water_quality",
+  "buoy"
+]

Added value: +{
+  "additionalProperties": false,
+  "description": "The narrowing dimensions this search applied, echoed when nothing matched so the caller can see which filter emptied the result.",
+  "properties": {
+    "catalogs_read": {
+      "description": "Catalogs this search actually fetched. Empty when source and state cancelled each other out and no catalog was read.",
+      "items": {
+        "description": "Catalog name: coops or ndbc.",
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "center": {
+      "additionalProperties": false,
+      "description": "Proximity-search center, present only when latitude and longitude were supplied.",
+      "properties": {
+        "latitude": {
+          "description": "Center latitude the proximity filter used.",
+          "type": "number"
+        },
+        "longitude": {
+          "description": "Center longitude the proximity filter used.",
+          "type": "number"
+        }
+      },
+      "required": [
+        "latitude",
+        "longitude"
+      ],
+      "type": "object"
+    },
+    "query": {
+      "description": "The name/ID substring as the server used it — trimmed and lowercased. Omitted when no query was supplied or it was blank.",
+      "type": "string"
+    },
+    "radius_km": {
+      "description": "Radius bound in km, present only when a center was given. Applies whenever a center is present and defaults to 100 km.",
+      "type": "number"
+    },
+    "source": {
+      "description": "The source filter applied: coops, ndbc, or all.",
+      "type": "string"
+    },
+    "state": {
+      "description": "The state filter applied. Restricts results to CO-OPS and excludes NDBC.",
+      "type": "string"
+    },
+    "types": {
+      "description": "The resolved types filter. Omitted when no types filter narrowed the search.",
+      "items": {
+        "description": "A requested capability or platform filter value.",
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "types_by_source": {
+      "additionalProperties": false,
+      "description": "The requested types split by the source that can carry them — every value belongs to exactly one source, so a single-source types filter reduces the search to that source.",
+      "properties": {
+        "coops": {
+          "description": "Requested values only a CO-OPS row can carry.",
+          "items": {
+            "description": "CO-OPS-only filter value.",
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "ndbc": {
+          "description": "Requested values only an NDBC row can carry.",
+          "items": {
+            "description": "NDBC-only filter value.",
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "coops",
+        "ndbc"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "catalogs_read",
+    "source"
+  ],
+  "type": "object"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_results`: No stations match the query, location, or filters. `incomplete_coordinates`: Only one of latitude/longitude was supplied — proximity search needs the pair. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `incomplete_coordinates`: Only one of latitude/longitude was supplied — proximity search needs the pair. `sources_unavailable`: Every station catalog this search needed failed to load, so no station list could be searched. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_results",
-  "incomplete_coordinates"
-]New value: +[
+  "incomplete_coordinates",
+  "sources_unavailable"
+]

Added value: +{
+  "description": "Guidance about the result set: why a search matched nothing, which catalog did not answer, or that the list was capped.",
+  "type": "string"
+}

Added value: +{
+  "additionalProperties": false,
+  "description": "Which station catalogs were attempted, answered, and failed. Present only when a catalog fetch rejected, so a partial result set is never read as a complete one.",
+  "properties": {
+    "answered": {
+      "description": "Catalogs that returned a station list — the results cover these only.",
+      "items": {
+        "description": "Catalog name: coops or ndbc.",
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "attempted": {
+      "description": "Catalogs this search needed, after source and state decided which to read.",
+      "items": {
+        "description": "Catalog name: coops or ndbc.",
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "failed": {
+      "description": "Catalogs whose fetch rejected. A station served only by one of these is missing.",
+      "items": {
+        "description": "Catalog name: coops or ndbc.",
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "answered",
+    "attempted",
+    "failed"
+  ],
+  "type": "object"
+}

Previous value: -"Stations matching the search criteria, sorted by distance (if lat/lon provided) or name."New value: +"Stations matching the search criteria, sorted by distance (if lat/lon provided) or by exact ID match then name. Empty when nothing matched."

Previous value: -"Data products available at this station: any of tide, current, water_level (CO-OPS) or met, current_profile (NDBC). Empty when the station reports no data capability — platform still identifies it."New value: +"Data products available at this station: any of tide, current, water_level (CO-OPS) or met, current_profile, water_quality (NDBC). Empty when the station reports no data capability — platform still identifies it."

Previous value: -"Total stations matching the filters before the limit was applied."New value: +"Total stations matching the filters before the limit was applied. Zero when nothing matched."

Previous value: -[
-  {
-    "not": {
-      "required": [
-        "error"
-      ]
-    },
-    "required": [
-      "station_id",
-      "station_name",
-      "latitude",
-      "longitude",
-      "observed_at",
-      "source",
-      "wind_direction_deg",
-      "wind_speed_ms",
-      "gust_speed_ms",
-      "wave_height_m",
-      "dominant_period_sec",
-      "average_period_sec",
-      "mean_wave_direction_deg",
-      "pressure_hpa",
-      "air_temp_c",
-      "water_temp_c",
-      "dew_point_c",
-      "visibility_nmi",
-      "tide_ft"
-    ]
-  },
-  {
-    "required": [
-      "error"
-    ]
-  }
-]New value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "latitude",
+      "longitude",
+      "observed_at",
+      "source",
+      "wind_direction_deg",
+      "wind_speed_ms",
+      "gust_speed_ms",
+      "wave_height_m",
+      "dominant_period_sec",
+      "average_period_sec",
+      "mean_wave_direction_deg",
+      "waves_observed_at",
+      "pressure_hpa",
+      "air_temp_c",
+      "water_temp_c",
+      "dew_point_c",
+      "visibility_nmi",
+      "tide_ft"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Previous value: -"Station latitude in decimal degrees."New value: +"Station latitude in decimal degrees. Null when the station is absent from the NDBC active-stations list — the realtime feed carries observations but no coordinates."

Previous value: -"number"New value: +[
+  "number",
+  "null"
+]

Previous value: -"Station longitude in decimal degrees."New value: +"Station longitude in decimal degrees. Null when the station is absent from the NDBC active-stations list."

Previous value: -"number"New value: +[
+  "number",
+  "null"
+]

Added value: +{
+  "description": "Present when a sensor block other than waves was read from a row older than observed_at, naming each such block, the output fields it fills, and the time those values were measured. Absent when every block outside the wave columns came from the newest row.",
+  "type": "string"
+}

Previous value: -"ISO 8601 UTC timestamp of the observation row used."New value: +"ISO 8601 UTC timestamp of the newest data row. Always a valid instant — a row whose upstream time columns are malformed is rejected rather than timestamped with the current time. A sensor block NDBC wrote on an earlier row was measured before this time: waves report theirs in waves_observed_at, and any other block is named with its own time in the notice."

Added value: +{
+  "description": "ISO 8601 UTC timestamp of the row the four wave fields were read from. NDBC runs its wave pass on a slower cycle than the met row, so this can be older than observed_at; it applies to all four wave fields, which are never sampled apart. Null when no wave sample falls inside the 90-minute look-back window, including when the buoy has no wave sensor.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"ISO 8601 UTC timestamp of the observation."New value: +"ISO 8601 UTC timestamp of the observation. Always a valid instant — a row whose upstream time columns are malformed is rejected rather than timestamped with the current time."

Previous value: -"NDBC station ID (5-character alphanumeric, e.g. \"44033\" or \"TIBC1\"). Obtain candidate IDs from noaa_marine_find_stations with source=\"ndbc\" — ocean-sensor coverage is not flagged in the catalog, so this is a best-effort call on any NDBC station."New value: +"NDBC station ID (5-character alphanumeric, e.g. \"44033\" or \"TIBC1\"). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"water_quality\"]."

Previous value: -"ISO 8601 UTC timestamp of the observation."New value: +"ISO 8601 UTC timestamp of the observation. Always a valid instant — a row whose upstream time columns are malformed is rejected rather than timestamped with the current time."

Added value: +{
+  "description": "Why the paired prediction series is missing, when it is missing.",
+  "type": "string"
+}

Previous value: -"Paired 6-minute tide predictions for the same period. May be empty if CO-OPS predictions are unavailable for this station."New value: +"Paired 6-minute tide predictions for the same period. Empty when CO-OPS returned no predictions for this station and range, or when the prediction fetch failed — predictions_status says which."

Added value: +{
+  "description": "Present only when predictions is empty. \"empty\" means CO-OPS returned no prediction rows for this station and date range; \"unavailable\" means the prediction fetch failed, so no comparison series could be retrieved and the absence says nothing about the station. Absent when predictions were returned.",
+  "enum": [
+    "empty",
+    "unavailable"
+  ],
+  "type": "string"
+}

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

Added value: +[
+  "number",
+  "null"
+]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "stations",
+      "total_found"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `no_results`: No stations match the query, location, or filters. `incomplete_coordinates`: Only one of latitude/longitude was supplied — proximity search needs the pair. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "no_results",
+            "incomplete_coordinates"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "stations",
-  "total_found"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "latitude",
+      "longitude",
+      "observed_at",
+      "source",
+      "wind_direction_deg",
+      "wind_speed_ms",
+      "gust_speed_ms",
+      "wave_height_m",
+      "dominant_period_sec",
+      "average_period_sec",
+      "mean_wave_direction_deg",
+      "pressure_hpa",
+      "air_temp_c",
+      "water_temp_c",
+      "dew_point_c",
+      "visibility_nmi",
+      "tide_ft"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `buoy_not_found`: NDBC returned 404 for the station ID. `no_sensor_data`: Buoy file exists but all sensor fields are MM (missing) — buoy offline or sensor failure. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "buoy_not_found",
+            "no_sensor_data"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "latitude",
-  "longitude",
-  "observed_at",
-  "source",
-  "wind_direction_deg",
-  "wind_speed_ms",
-  "gust_speed_ms",
-  "wave_height_m",
-  "dominant_period_sec",
-  "average_period_sec",
-  "mean_wave_direction_deg",
-  "pressure_hpa",
-  "air_temp_c",
-  "water_temp_c",
-  "dew_point_c",
-  "visibility_nmi",
-  "tide_ft"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "latitude",
+      "longitude",
+      "observed_at",
+      "source",
+      "bin_count",
+      "bins"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `profile_not_found`: NDBC returned 404 for the station — no ADCP current-profile file exists for it. `no_current_data`: The ADCP file exists but has no usable data rows — profiler offline or every bin missing. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "profile_not_found",
+            "no_current_data"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "latitude",
-  "longitude",
-  "observed_at",
-  "source",
-  "bin_count",
-  "bins"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "units"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — current stations require alphanumeric IDs. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no current-prediction data for the date range. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "station_not_found",
+            "invalid_date_range",
+            "date_range_exceeded",
+            "no_predictions"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "units"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "latitude",
+      "longitude",
+      "observed_at",
+      "source",
+      "reading_count",
+      "readings"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `observations_not_found`: NDBC returned 404 for the station — no .ocean oceanographic file exists for it. `no_ocean_data`: The .ocean file exists but has no usable data rows — station offline or every depth row missing. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "observations_not_found",
+            "no_ocean_data"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "latitude",
-  "longitude",
-  "observed_at",
-  "source",
-  "reading_count",
-  "readings"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "datum",
+      "units",
+      "predictions"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID — likely wrong type or invalid ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 1-year CO-OPS limit. `no_predictions`: Station exists but CO-OPS returned no prediction data for the date range. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "station_not_found",
+            "invalid_date_range",
+            "date_range_exceeded",
+            "no_predictions"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "datum",
-  "units",
-  "predictions"
-]

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "station_id",
+      "station_name",
+      "datum",
+      "units",
+      "observations",
+      "predictions"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `station_not_found`: CO-OPS returned an error for the station ID. `invalid_date_range`: begin_date/end_date is not a real calendar date or begin_date is after end_date `date_range_exceeded`: Requested date range exceeds the 31-day CO-OPS limit for 6-minute water level data. `no_data`: Station exists but no observed water-level data for the date range. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "station_not_found",
+            "invalid_date_range",
+            "date_range_exceeded",
+            "no_data"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Removed value: -[
-  "station_id",
-  "station_name",
-  "datum",
-  "units",
-  "observations",
-  "predictions"
-]

Previous value: -"Filter by station capability. Every returned station carries at least one of the requested values in its capabilities list. Omit to return all types. NDBC stations whose only capability is currents match none of these values — reach them with source=\"ndbc\" and no types filter, or by name/ID via query."New value: +"Filter by data capability or NDBC platform class. Every returned station matches at least one requested value — a capability value against its capabilities list, or buoy against its platform class. Omit to return all stations."

Previous value: -"Station capability, matched against the capabilities list of each station: tide (CO-OPS tide predictions), current (CO-OPS current predictions), water_level (CO-OPS observed water levels), met (NDBC meteorological — the stations noaa_marine_get_conditions reads), buoy (NDBC station reporting neither met nor currents)."New value: +"Filter value. Five are data capabilities, matched against a station's capabilities list: tide (CO-OPS tide predictions → noaa_marine_get_tide_predictions), current (CO-OPS tidal-current predictions → noaa_marine_get_currents), water_level (CO-OPS observed water levels → noaa_marine_get_water_level), met (NDBC meteorological → noaa_marine_get_conditions), current_profile (NDBC observed ocean-current depth profile → noaa_marine_get_current_profile; note this is a different data product and source than CO-OPS `current`). The sixth, buoy, is a physical-platform filter (NDBC platform class equals buoy), not a data capability — use it to select buoy-class platforms regardless of what data they serve."

Previous value: -[
-  "tide",
-  "current",
-  "water_level",
-  "buoy",
-  "met"
-]New value: +[
+  "tide",
+  "current",
+  "water_level",
+  "met",
+  "current_profile",
+  "buoy"
+]

Previous value: -"List of data products available at this station."New value: +"Data products available at this station: any of tide, current, water_level (CO-OPS) or met, current_profile (NDBC). Empty when the station reports no data capability — platform still identifies it."

Added value: +{
+  "description": "NDBC physical platform class: buoy, fixed, oilrig, dart, tao, usv, or other. A different axis than type/capabilities (which describe data products). Omitted for CO-OPS stations — CO-OPS publishes no platform taxonomy.",
+  "type": "string"
+}

Previous value: -"The capability this row leads with — always one of the values in capabilities. When a types filter is set this is the first requested capability the station has, so it never contradicts the filter; otherwise it is the first capability. This is a data-product capability, not the physical platform classification — for that, read the noaa-marine://station/{station_id} resource."New value: +"The data capability this row leads with — always one of the values in capabilities. When a types filter of capability values is set this is the first requested capability the station has, so it never contradicts the filter; otherwise it is the first capability. Omitted when the station has no data capability (e.g. a bare buoy/fixed platform matched only by a platform filter) — read platform for its identity. This is a data-product axis, never the physical platform class."

Previous value: -[
-  "station_id",
-  "name",
-  "source",
-  "type",
-  "latitude",
-  "longitude",
-  "capabilities"
-]New value: +[
+  "station_id",
+  "name",
+  "source",
+  "latitude",
+  "longitude",
+  "capabilities"
+]

Previous value: -"Center latitude in decimal degrees for proximity search. Pair with longitude and optionally radius_km."New value: +"Center latitude in decimal degrees for proximity search. Required together with longitude — supplying only one is rejected rather than silently ignored. Optionally pair with radius_km."

Previous value: -"Center longitude in decimal degrees for proximity search. Pair with latitude and optionally radius_km."New value: +"Center longitude in decimal degrees for proximity search. Required together with latitude — supplying only one is rejected rather than silently ignored. Optionally pair with radius_km."

Previous value: -"Station name substring to search (case-insensitive token match). E.g. \"seattle\", \"puget sound\"."New value: +"Station name substring to match, case-insensitive. E.g. \"seattle\", \"puget sound\". NDBC rows also match on station ID. Blank or whitespace-only values are treated as omitted."

Previous value: -"Filter by station type/capability. Omit to return all types."New value: +"Filter by station capability. Every returned station carries at least one of the requested values in its capabilities list. Omit to return all types. NDBC stations whose only capability is currents match none of these values — reach them with source=\"ndbc\" and no types filter, or by name/ID via query."

Previous value: -"Station capability type: tide (CO-OPS tide predictions), current (CO-OPS current predictions), water_level (CO-OPS observed water levels), buoy (NDBC buoy), met (NDBC meteorological)."New value: +"Station capability, matched against the capabilities list of each station: tide (CO-OPS tide predictions), current (CO-OPS current predictions), water_level (CO-OPS observed water levels), met (NDBC meteorological — the stations noaa_marine_get_conditions reads), buoy (NDBC station reporting neither met nor currents)."

Previous value: -"Station type/capability string, e.g. \"tide\", \"current\", \"water_level\", \"buoy\"."New value: +"The capability this row leads with — always one of the values in capabilities. When a types filter is set this is the first requested capability the station has, so it never contradicts the filter; otherwise it is the first capability. This is a data-product capability, not the physical platform classification — for that, read the noaa-marine://station/{station_id} resource."

Previous value: -"NDBC buoy station ID (5-character alphanumeric, e.g. \"46041\" for Cape Elizabeth). Obtain from noaa_marine_find_stations with source=\"ndbc\"."New value: +"NDBC buoy station ID (5-character alphanumeric, e.g. \"46041\" for Cape Elizabeth). Obtain from noaa_marine_find_stations with source=\"ndbc\" and types=[\"met\"]."

Previous value: -"Filter by 2-letter US state or territory code (CO-OPS stations only). E.g. \"WA\", \"CA\", \"PR\"."New value: +"Filter by 2-letter US state or territory code. Applies to CO-OPS stations only — providing it restricts results to CO-OPS and excludes NDBC buoys (which carry no state). E.g. \"WA\", \"CA\", \"PR\"."

Added value: +{
+  "description": "True when total_found exceeds the limit and not all matching stations are returned. Increase limit or narrow filters to see more.",
+  "type": "boolean"
+}