open-meteo-mcp-server

Added value: +{
+  "description": "Present only when counting the full result failed after its rows were read — the failure reason (e.g. sql_execution_error, or count_timeout when counting ran past 5 seconds). The rows are still valid; row_count is then a lower bound.",
+  "type": "string"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired under its 24 h sliding TTL. `system_catalog_access`: The SQL references a system catalog such as information_schema, sqlite_master, pg_catalog, or a duckdb_*() function. `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired under its 24 h sliding TTL. `system_catalog_access`: The SQL references a system catalog such as information_schema, sqlite_master, pg_catalog, or a duckdb_*() function. `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped. `row_too_large`: The first result row alone cannot fit the 80,000-character inline ceiling, and values are never cut. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "canvas_not_enabled",
-  "canvas_not_found",
-  "system_catalog_access",
-  "missing_table"
-]New value: +[
+  "canvas_not_enabled",
+  "canvas_not_found",
+  "system_catalog_access",
+  "missing_table",
+  "row_too_large"
+]

Previous value: -"Total rows in the full result before any cap."New value: +"Exact number of rows in the full result. When count_error is present, the total could not be counted and this is a lower bound: the rows the query confirmed exist."

Previous value: -"Result rows — a preview capped at 100. When row_count exceeds this, page the rest by re-issuing the SQL with LIMIT / OFFSET."New value: +"Leading result rows: at most 100, and fewer when the next row would take the response past its 80,000-character inline ceiling. Values are never cut. When row_count exceeds rows.length, continue by re-issuing the SQL with OFFSET <rows.length>, added to any OFFSET it already applies, with any LIMIT reduced by the same amount. Page under an ORDER BY: without one, DuckDB guarantees no row order between calls."

Previous value: -"Air quality variables to return for the current instant (e.g., [\"pm2_5\", \"pm10\", \"european_aqi\", \"us_aqi\"]). Uses Open-Meteo's current-conditions data, so it answers \"what is the AQI now?\" without requesting an hourly series and picking a row; the returned interval reports the update cadence, 3600 seconds on this endpoint. Satisfies the variable requirement on its own."New value: +"Air quality variables to return for the current instant (e.g., [\"pm2_5\", \"pm10\", \"european_aqi\", \"us_aqi\"]). Uses Open-Meteo's current-conditions data, so it answers \"what is the AQI now?\" without requesting an hourly series and picking a row; the returned interval is the block's aggregation interval, 3600 seconds on this endpoint. Satisfies the variable requirement on its own."

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Update cadence of the current-conditions data, in seconds (3600 = hourly on this endpoint) — metadata, not a requested variable"New value: +"Aggregation interval of the current block, in seconds (3600 on this endpoint) — metadata, not a requested variable. Pollutant concentrations are instantaneous at current.time; the AQI indices are computed over their own averaging windows, not over interval"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested. `no_variables_requested`: Neither current_variables nor hourly_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested. `no_variables_requested`: Neither current_variables nor hourly_variables named a variable — blank or whitespace-only entries do not count. `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict",
-  "date_order_invalid",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "invalid_variable",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the CAMS archive, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); current values that are null under a real unit (no coverage at this location and time, such as pollen outside Europe); recognized variables whose requested window or location falls outside CAMS coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: daily_variables was not provided or is empty. `invalid_variable`: An unknown variable name or unsupported climate model was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: daily_variables named no variable — omitted, empty, or holding only blank or whitespace-only entries. `invalid_variable`: An unknown variable name or unsupported climate model was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Terrain elevation in meters above sea level"New value: +"Terrain elevation in meters above sea level; null when the DEM has no value for this point"

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

Previous value: -"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: The latitudes and longitudes arrays have different lengths. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: The latitudes and longitudes arrays have different lengths. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "coordinate_count_mismatch"
-]New value: +[
+  "coordinate_count_mismatch",
+  "rate_limited"
+]

Previous value: -"Forecast horizon in days (1–16). Default 7."New value: +"Forecast horizon in days (1–35). Default 7. Most ensemble models end within 16 days; past a model's horizon its columns come back null and the response notice names where its data ends."

Previous value: -16New value: +35

Previous value: -"Ensemble model to use, one name: ecmwf_ifs025_ensemble (51 members, global 0.25°), ecmwf_aifs025_ensemble (51, global 0.25°), ecmwf_ifs_europe_ensemble (51, Europe 9 km), ecmwf_aifs_europe_ensemble (51, Europe 31 km), google_weathernext2_ensemble (64, global 0.25°), ncep_gefs_seamless (31, global blend), ncep_gefs025 (31, global 0.25°), ncep_gefs05 (31, global 50 km, 35 days), ncep_aigefs025 (31, global 0.25°), icon_seamless_eps (20–40, global/Europe blend), icon_global_eps (40, global 26 km), icon_eu_eps (40, Europe 13 km), icon_d2_eps (20, Central Europe 2 km), gem_global_ensemble (21, global 0.25°), bom_access_global_ensemble (18, global 40 km), ukmo_global_ensemble_20km (18, global 20 km), ukmo_uk_ensemble_2km (3, UK 2 km), meteoswiss_icon_ch1_ensemble (11, Central Europe 1 km), meteoswiss_icon_ch2_ensemble (21, Central Europe 2 km). Member counts include the control run. Omit to use the API default blend. A name outside this list is sent upstream rather than rejected here, so a model Open-Meteo adds later still works."New value: +"Ensemble model to use, one name: ecmwf_ifs025_ensemble (51 members, global 0.25°), ecmwf_aifs025_ensemble (51, global 0.25°), ecmwf_ifs_europe_ensemble (51, Europe 9 km), ecmwf_aifs_europe_ensemble (51, Europe 31 km), google_weathernext2_ensemble (64, global 0.25°), ncep_gefs_seamless (31, global blend), ncep_gefs025 (31, global 0.25°), ncep_gefs05 (31, global 50 km, 35 days), ncep_aigefs025 (31, global 0.25°), icon_seamless_eps (20–40, global/Europe blend), icon_global_eps (40, global 26 km), icon_eu_eps (40, Europe 13 km), icon_d2_eps (20, Central Europe 2 km), gem_global_ensemble (21, global 0.25°), bom_access_global_ensemble (18, global 40 km), ukmo_global_ensemble_20km (18, global 20 km), ukmo_uk_ensemble_2km (3, UK 2 km), meteoswiss_icon_ch1_ensemble (11, Central Europe 1 km), meteoswiss_icon_ch2_ensemble (21, Central Europe 2 km). Member counts include the control run. Omit or leave blank to use ecmwf_ifs025_ensemble. A name outside this list is sent upstream rather than rejected here, so a model Open-Meteo adds later still works."

Previous value: -[
-  {
-    "not": {
-      "required": [
-        "error"
-      ]
-    },
-    "required": [
-      "latitude",
-      "longitude",
-      "elevation",
-      "timezone",
-      "record_count",
-      "truncated"
-    ]
-  },
-  {
-    "required": [
-      "error"
-    ]
-  }
-]New value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "latitude",
+      "longitude",
+      "elevation",
+      "timezone",
+      "model",
+      "record_count",
+      "truncated"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported model was requested. `variable_wrong_cadence`: A variable sat in the cadence field the ensemble API does not document it under — for example precipitation_sum in hourly_variables, or precipitation in daily_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables named a variable — blank or whitespace-only entries do not count. `invalid_variable`: An unknown variable name or unsupported model was requested. `variable_wrong_cadence`: A variable sat in the cadence field the ensemble API does not document it under — for example precipitation_sum in hourly_variables, or precipitation in daily_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Ensemble model used (e.g. \"ecmwf_ifs025_ensemble\") — echoes the requested models parameter. Absent when models was omitted (API default blend; the API reports no provenance)."New value: +"Ensemble model used — echoes the requested models parameter, or ecmwf_ifs025_ensemble when models was omitted or blank."

Previous value: -"Daily discharge variables to fetch (e.g., [\"river_discharge\", \"river_discharge_p25\", \"river_discharge_p75\", \"river_discharge_min\", \"river_discharge_max\"]). Required."New value: +"Daily discharge variables to fetch (e.g., [\"river_discharge\", \"river_discharge_p25\", \"river_discharge_p75\", \"river_discharge_min\", \"river_discharge_max\"]). Required. river_discharge is the daily discharge value; the _mean, _median, _min, _max, _p25, and _p75 statistics span the ensemble members in forecast mode only — in reanalysis mode they repeat river_discharge and are not uncertainty estimates."

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty. `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together. `forecast_days_conflict`: A start_date or end_date range was combined with a forecast_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid. `invalid_variable`: An unknown discharge variable name was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables named no variable — omitted, empty, or holding only blank or whitespace-only entries. `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together. `forecast_days_conflict`: A start_date or end_date range was combined with a forecast_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid. `invalid_variable`: An unknown discharge variable name was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_days_conflict",
-  "date_order_invalid",
-  "date_out_of_range",
-  "invalid_variable",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_days_conflict",
+  "date_order_invalid",
+  "date_out_of_range",
+  "invalid_variable",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Update cadence of the current-conditions data, in seconds (900 = 15 minutes) — metadata, not a requested variable"New value: +"Aggregation interval of the current block, in seconds (900 = 15 minutes) — metadata, not a requested variable. Summed or averaged values such as precipitation and sunshine_duration cover the preceding interval seconds ending at current.time; instantaneous values such as temperature_2m are valid at current.time"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables named a variable — blank or whitespace-only entries do not count. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); current values that are null under a real unit (no coverage at this location and time); recognized variables whose requested window or location falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported archive model was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: Neither hourly_variables nor daily_variables named a variable — blank or whitespace-only entries do not count. `invalid_variable`: An unknown variable name or unsupported archive model was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Latitude of a coastal or ocean point. Use openmeteo_search_locations to resolve a place name. Inland points return near-zero wave values."New value: +"Latitude of a coastal or ocean point. Use openmeteo_search_locations to resolve a place name. Sheltered water returns near-zero wave values; a land point returns null values, which the notice reports."

Added value: +"date"

Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example wave_height in daily_variables, or wave_height_max in hourly_variables — caught before the request is sent. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example wave_height in daily_variables, or wave_height_max in hourly_variables — caught before the request is sent. `no_variables_requested`: Neither hourly_variables nor daily_variables named a variable — blank or whitespace-only entries do not count. `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict",
-  "date_order_invalid",
-  "invalid_timezone",
-  "request_too_large"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone",
+  "request_too_large",
+  "rate_limited"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window or location falls outside the data's coverage (a land point returns nulls), with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Language for matching and returning place names (ISO 639-1, e.g., \"en\", \"de\", \"zh\"). The API matches name against the localized index for this language, so set it to match the script of name — e.g. language \"zh\" for \"上海\", \"ru\" for \"Москва\". This resolves a native-script name of three or more characters, which is matched by normalized prefix; a one- or two-character name must equal an index entry exactly, so setting language alone will not find \"서울\" or \"大阪\" — retry those with the full administrative name (\"서울특별시\", \"大阪市\") or the romanized name (\"Seoul\", \"Osaka\"). Default \"en\"; a query in a recognized non-Latin script (CJK, Hangul, Cyrillic, Arabic, Greek, Hebrew, Thai, Devanagari) that misses under \"en\" is retried once with the language inferred from its script."New value: +"Language for matching and returning place names (ISO 639-1, e.g., \"en\", \"de\", \"zh\"). The API matches name against the localized index for this language, so set it to match the script of name — e.g. language \"zh\" for \"上海\", \"ru\" for \"Москва\". This resolves a native-script name of three or more characters, which is matched by normalized prefix; a one- or two-character name must equal an index entry exactly, so setting language alone will not find \"서울\" or \"大阪\" — retry those with the full administrative name (\"서울특별시\", \"大阪市\") or the romanized name (\"Seoul\", \"Osaka\"). Default \"en\"; a query in a recognized non-Latin script (CJK, Hangul, Cyrillic, Arabic, Greek, Hebrew, Thai, Devanagari) that misses under \"en\" is retried once with the language inferred from its script, and effective_language on the response names that language when the retry supplied the results."

Added value: +{
+  "description": "ISO 639-1 language the results were matched in, present only when the query missed under the default \"en\" and the retry with a language inferred from its script found them. The results’ name, country, admin1, and admin2 are localized in that language. Absent when the results were matched in the requested language.",
+  "type": "string"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_results`: The search returned no matching places. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_results`: The search returned no matching places. `rate_limited`: Open-Meteo answered HTTP 429 because a free-tier request limit was reached. Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_results"
-]New value: +[
+  "no_results",
+  "rate_limited"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding). Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired under its 24 h sliding TTL. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding). `system_catalog_access`: The SQL references a system catalog (information_schema, sqlite_master, pg_catalog, or a duckdb_*() function). `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired under its 24 h sliding TTL. `system_catalog_access`: The SQL references a system catalog such as information_schema, sqlite_master, pg_catalog, or a duckdb_*() function. `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested. `no_variables_requested`: Neither current_variables nor hourly_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together. `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested. `no_variables_requested`: Neither current_variables nor hourly_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31. `date_order_invalid`: end_date is before start_date. `no_variables_requested`: daily_variables was not provided or is empty. `invalid_variable`: An unknown variable name or unsupported climate model was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: daily_variables was not provided or is empty. `invalid_variable`: An unknown variable name or unsupported climate model was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: latitudes and longitudes arrays have different lengths. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: The latitudes and longitudes arrays have different lengths. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported model was requested. `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported model was requested. `variable_wrong_cadence`: A variable sat in the cadence field the ensemble API does not document it under — for example precipitation_sum in hourly_variables, or precipitation in daily_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty. `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together. `forecast_days_conflict`: forecast_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid. `invalid_variable`: An unknown discharge variable name was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty. `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together. `forecast_days_conflict`: A start_date or end_date range was combined with a forecast_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid. `invalid_variable`: An unknown discharge variable name was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables. `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model. `date_order_invalid`: end_date is before start_date. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported archive model was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model. `date_order_invalid`: The end_date value is earlier than the start_date value. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported archive model was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables — caught before the request is sent. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together. `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested. `variable_wrong_cadence`: A variable sat in the cadence field Open-Meteo does not document it under — for example wave_height in daily_variables, or wave_height_max in hourly_variables — caught before the request is sent. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together. `forecast_window_conflict`: A start_date or end_date range was combined with forecast_days or a non-zero past_days value. `date_order_invalid`: The end_date value is earlier than the start_date value. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding) Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding). Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding) `system_catalog_access`: The SQL references a system catalog (information_schema, sqlite_master, pg_catalog, or a duckdb_*() function) `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb. `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding). `system_catalog_access`: The SQL references a system catalog (information_schema, sqlite_master, pg_catalog, or a duckdb_*() function). `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: Neither current_variables nor hourly_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested. `no_variables_requested`: Neither current_variables nor hourly_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together. `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31. `date_order_invalid`: end_date is before start_date. `no_variables_requested`: daily_variables was not provided or is empty. `invalid_variable`: An unknown variable name or unsupported climate model was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: latitudes and longitudes arrays have different lengths Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `coordinate_count_mismatch`: latitudes and longitudes arrays have different lengths. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported model was requested. `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty. `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together. `forecast_days_conflict`: forecast_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid. `invalid_variable`: An unknown discharge variable name was requested. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables. `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported archive model was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model. `date_order_invalid`: end_date is before start_date. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `invalid_variable`: An unknown variable name or unsupported archive model was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Added value: +"^[A-Za-z0-9_-]{10}$"

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested. `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables. `no_variables_requested`: Neither hourly_variables nor daily_variables was provided. `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together. `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date. `date_order_invalid`: end_date is before start_date. `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone. `request_too_large`: Open-Meteo refused the request as asking for too much data in one call. Other values are possible when a failure originates below the handler."

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_results`: The search returned no matching places Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_results`: The search returned no matching places. Other values are possible when a failure originates below the handler."

Added value: +{
+  "description": "Air quality variables to return for the current instant (e.g., [\"pm2_5\", \"pm10\", \"european_aqi\", \"us_aqi\"]). Uses Open-Meteo's current-conditions data, so it answers \"what is the AQI now?\" without requesting an hourly series and picking a row; the returned interval reports the update cadence, 3600 seconds on this endpoint. Satisfies the variable requirement on its own.",
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 50,
+  "type": "array"
+}

Previous value: -"Hourly air quality variables (e.g., [\"pm2_5\", \"pm10\", \"ozone\", \"nitrogen_dioxide\", \"european_aqi\", \"us_aqi\"]). At least one required."New value: +"Hourly air quality variables (e.g., [\"pm2_5\", \"pm10\", \"ozone\", \"nitrogen_dioxide\", \"european_aqi\", \"us_aqi\"]). At least one of current_variables or hourly_variables is required."

Added value: +{
+  "additionalProperties": {
+    "type": [
+      "string",
+      "number",
+      "null"
+    ]
+  },
+  "description": "Pollutant and index values at a single instant: one key per requested current variable alongside time and interval. Units are in the current_units map. Absent when current_variables was not requested.",
+  "properties": {
+    "interval": {
+      "description": "Update cadence of the current-conditions data, in seconds (3600 = hourly on this endpoint) — metadata, not a requested variable",
+      "type": "number"
+    },
+    "time": {
+      "description": "Timestamp of these values (ISO 8601, in the resolved timezone)",
+      "type": "string"
+    }
+  },
+  "required": [
+    "time",
+    "interval"
+  ],
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": {
+    "type": "string"
+  },
+  "description": "Key → unit string for the current block, covering time and interval as well as each requested variable (e.g., {\"interval\": \"seconds\", \"pm2_5\": \"μg/m³\"}). Absent when no current_variables were requested.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: Neither current_variables nor hourly_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -"Latitude in decimal degrees. The API snaps to the nearest river — no river ID required. Use openmeteo_search_locations to resolve a place name."New value: +"Latitude in decimal degrees. Discharge is returned for the largest modeled river within 5 km of this point — no river ID required, and not necessarily the closest river. Vary the coordinate by about 0.1° and compare when the result looks unrepresentative. Use openmeteo_search_locations to resolve a place name."

Previous value: -"Longitude in decimal degrees."New value: +"Longitude in decimal degrees. With latitude it selects the largest modeled river within 5 km, which is not necessarily the closest one."

Previous value: -"Snapped latitude (nearest river grid point)"New value: +"Snapped latitude — grid point of the selected river"

Previous value: -"Snapped longitude"New value: +"Snapped longitude — grid point of the selected river"

Added value: +{
+  "description": "Variables to return for the current instant (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"weather_code\"]). Uses Open-Meteo's 15-minute current-conditions data, so it answers \"what is it doing right now?\" without requesting an hourly series and picking a row. Takes the hourly variable names; a daily-only name such as temperature_2m_max comes back null with the unit \"undefined\" and is reported in the notice. Satisfies the variable requirement on its own.",
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 50,
+  "type": "array"
+}

Previous value: -"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\", \"sunrise\", \"sunset\", \"uv_index_max\"]). Daily names only — an hourly name such as cloud_cover or temperature_2m belongs in hourly_variables and is rejected here; for a daily summary of an hourly variable use its published aggregate (cloud_cover_max, cloud_cover_mean, cloud_cover_min). At least one of hourly_variables or daily_variables is required."New value: +"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\", \"sunrise\", \"sunset\", \"uv_index_max\"]). Daily names only — an hourly name such as cloud_cover or temperature_2m belongs in hourly_variables and is rejected here; for a daily summary of an hourly variable use its published aggregate (cloud_cover_max, cloud_cover_mean, cloud_cover_min). At least one of current_variables, hourly_variables, or daily_variables is required."

Previous value: -"Hourly variables to fetch (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"uv_index\", \"apparent_temperature\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables is required."New value: +"Hourly variables to fetch (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"uv_index\", \"apparent_temperature\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of current_variables, hourly_variables, or daily_variables is required."

Previous value: -"Include this many days of past data before today (0–92). Use for recent history — ERA5 archive has a variable ~5-day lag. Default 0."New value: +"Include this many days of past data before today (0–92). Use for recent history — the archive’s ERA5 components lag by up to ~5 days. Default 0."

Added value: +{
+  "additionalProperties": {
+    "type": [
+      "string",
+      "number",
+      "null"
+    ]
+  },
+  "description": "Conditions at a single instant: one key per requested current variable alongside time and interval. Units are in the current_units map. Absent when current_variables was not requested.",
+  "properties": {
+    "interval": {
+      "description": "Update cadence of the current-conditions data, in seconds (900 = 15 minutes) — metadata, not a requested variable",
+      "type": "number"
+    },
+    "time": {
+      "description": "Timestamp of these values (ISO 8601, in the resolved timezone)",
+      "type": "string"
+    }
+  },
+  "required": [
+    "time",
+    "interval"
+  ],
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": {
+    "type": "string"
+  },
+  "description": "Map of key → unit string for the current block, covering time and interval as well as each requested variable (e.g., {\"interval\": \"seconds\", \"temperature_2m\": \"°C\"}). Absent when no current_variables were requested.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: None of current_variables, hourly_variables, or daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -"End date (YYYY-MM-DD, inclusive). Must be on or after start_date. For dates within the last ~5 days, use openmeteo_get_forecast with past_days instead."New value: +"End date (YYYY-MM-DD, inclusive). Must be on or after start_date. For the last few days, either request models: [\"ecmwf_ifs\"] or use openmeteo_get_forecast with past_days."

Previous value: -"Hourly ERA5 variables (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"soil_moisture_0_to_7cm\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables required."New value: +"Hourly archive variables (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"soil_moisture_0_to_7cm\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables required."

Added value: +{
+  "description": "Archive models to read from: best_match (default, blends IFS HRES + ERA5 + ERA5-Land), ecmwf_ifs (global 9 km, updated every 6 hours, no delay), ecmwf_ifs_analysis_long_window (global 9 km, daily, 2 days delay), era5_seamless (ERA5 and ERA5-Land combined), era5 (global 0.25° (~25 km), daily, 5 days delay), era5_land (global 0.1° (~11 km), daily, 5 days delay), era5_ensemble (global 0.5° (~55 km), daily, 5 days delay), cerra (Europe only, 5 km, no real-time updates). Omit to use Open-Meteo's Best Match default, which blends IFS HRES, ERA5, and ERA5-Land — pin a model instead when a consistent source matters across the range. With 2+ models each variable column is suffixed with the model name. cerra covers Europe only and is rejected as a coverage gap elsewhere. A name outside this list is sent upstream rather than rejected here.",
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 8,
+  "type": "array"
+}

Previous value: -"Start date (YYYY-MM-DD, e.g., \"2024-07-01\"). ERA5 covers from 1940-01-01 to approximately 5 days ago."New value: +"Start date (YYYY-MM-DD, e.g., \"2024-07-01\"). The archive covers from 1940-01-01; how close to today it reaches depends on the model — the ERA5 family runs about 5 days behind, IFS HRES is current."

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01, or the requested dates fall outside the coverage of the selected model `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported archive model was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Added value: +{
+  "description": "Archive models requested — echoes the models parameter. Absent when models was omitted, which means the data came from Open-Meteo Best Match (IFS HRES + ERA5 + ERA5-Land) and the source varies by date.",
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Advisory on the confidence of the top match, present only when its population is null or under 100,000 — the shape a historic or colonial exonym returns, where the upstream index answers with an unrelated small feature and never surfaces the modern city. Names the returned place, country, and feature_code, and asks the caller to verify the coordinates or retry with the place’s current official name. Never changes results or count.",
+  "type": "string"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict",
-  "date_order_invalid",
-  "invalid_timezone"
-]New value: +[
+  "invalid_variable",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the CAMS archive, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the CAMS archive, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable",
-  "invalid_timezone"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables a selected model carries no values for, with the dates that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables a selected model carries no values for, with the dates that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "invalid_timezone"
-]New value: +[
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: variables the endpoint returned with the unit \"undefined\" across every member (a name the selected model does not carry); recognized variables whose requested window runs past the model's horizon, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: variables the endpoint returned with the unit \"undefined\" across every member (a name the selected model does not carry); recognized variables whose requested window runs past the model's horizon, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_days_conflict",
-  "date_order_invalid",
-  "date_out_of_range",
-  "invalid_variable",
-  "invalid_timezone"
-]New value: +[
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_days_conflict",
+  "date_order_invalid",
+  "date_out_of_range",
+  "invalid_variable",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns GloFAS returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested range falls outside the coordinate's discharge record, with the dates that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns GloFAS returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested range falls outside the coordinate's discharge record, with the dates that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested",
-  "invalid_timezone"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "invalid_timezone"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the archive returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the archive returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"Per-day summary records with \"time\" (YYYY-MM-DD) + variable keys (e.g., wave_height_max in meters, wave_direction_dominant in degrees, wave_period_max in seconds). When truncated, contains only a preview — query canvas_id for the full dataset when one is present."New value: +"Per-day summary records with \"time\" (YYYY-MM-DD) + variable keys (e.g., wave_height_max in meters, wave_direction_dominant in degrees, wave_period_max in seconds). Absent when only hourly_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone `request_too_large`: Open-Meteo refused the request as asking for too much data in one call Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict",
-  "date_order_invalid",
-  "invalid_timezone"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone",
+  "request_too_large"
+]

Previous value: -"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, either the canvas and table holding the full row set plus the two dataframe tools that read it, or — with DataCanvas disabled — why there is no canvas_id and how to reach the rows the preview omits."

Previous value: -"DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"Start date for the archive range (YYYY-MM-DD, e.g., \"2024-07-01\"). Real CAMS values go back to at least 2022-10-01; earlier dates return rows of nulls. Requires end_date — the pair must be sent together, and neither combines with forecast_days or past_days."New value: +"Start date for the archive range (YYYY-MM-DD, e.g., \"2024-07-01\"). The CAMS global archive begins in August 2022; earlier dates return rows of nulls, and us_aqi starts a day later than the pollutant series (european_aqi starts with it). Requires end_date — the pair must be sent together, and neither combines with forecast_days or past_days."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the CAMS archive, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns. Present only alongside canvas_id."

Previous value: -"DataCanvas token for multi-decade or multi-model queries. When a result is too large to return inline — driven by total payload size, so a wide multi-model pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for multi-decade or multi-model queries. When a result is too large to return inline — driven by total payload size, so a wide multi-model pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its per-model columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its per-model columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables a selected model carries no values for, with the dates that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns, which is the only way to learn the per-model suffixes this request produced. Present only alongside canvas_id."

Previous value: -"DataCanvas token for large multi-member queries. When a result is too large to return inline — driven by total payload size, so a wide member fan-out can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for large multi-member queries. When a result is too large to return inline — driven by total payload size, so a wide member fan-out can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its per-member columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its per-member columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data across every member — names each variable whose unit is \"undefined\", which is how the endpoint reports a name the selected model does not carry."New value: +"Everything this response needs to say beyond the data, composed into one advisory: variables the endpoint returned with the unit \"undefined\" across every member (a name the selected model does not carry); recognized variables whose requested window runs past the model's horizon, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns, which is the only way to learn the per-member suffixes this request produced. Present only alongside canvas_id."

Previous value: -"DataCanvas token for wide reanalysis queries. When a result is too large to return inline — driven by total payload size, so a multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for wide reanalysis queries. When a result is too large to return inline — driven by total payload size, so a multi-variable pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns GloFAS returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested range falls outside the coordinate's discharge record, with the dates that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns. Present only alongside canvas_id."

Previous value: -"DataCanvas token for wide past_days or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for wide past_days or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve in the requested cadence."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns. Present only alongside canvas_id."

Previous value: -"DataCanvas token for multi-year or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for multi-year or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the archive reports a name it parsed but does not serve in the requested cadence."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the archive returned with the unit \"undefined\" (a name it parsed but does not serve in the requested cadence); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns. Present only alongside canvas_id."

Previous value: -"DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas: pass the returned token to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it. Omit to create a fresh canvas."

Previous value: -"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Pass to openmeteo_dataframe_describe to list the staged table and its columns, then to openmeteo_dataframe_query to run SQL against it."

Previous value: -"Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve."New value: +"Everything this response needs to say beyond the data, composed into one advisory: columns the endpoint returned with the unit \"undefined\" (a name it parsed but does not serve); recognized variables whose requested window falls outside the data's coverage, with the timestamps that do carry values; and, when the result spilled, the canvas and table holding the full row set plus the two dataframe tools that read it."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."New value: +"DuckDB table name for the staged data — use as the FROM target in openmeteo_dataframe_query SQL; openmeteo_dataframe_describe lists its columns. Present only alongside canvas_id."

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict"
-]New value: +[
+  "invalid_variable",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence"
-]New value: +[
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `no_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_days_conflict",
-  "date_order_invalid",
-  "date_out_of_range",
-  "invalid_variable"
-]New value: +[
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_days_conflict",
+  "date_order_invalid",
+  "date_out_of_range",
+  "invalid_variable",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "date_out_of_range",
-  "date_order_invalid",
-  "no_variables_requested",
-  "invalid_variable",
-  "variable_wrong_cadence"
-]New value: +[
+  "date_out_of_range",
+  "date_order_invalid",
+  "no_variables_requested",
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "invalid_timezone"
+]

Previous value: -"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `invalid_timezone`: timezone was blank, or upstream did not recognize the requested time zone Other values are possible when a failure originates below the handler."

Previous value: -[
-  "invalid_variable",
-  "variable_wrong_cadence",
-  "no_variables_requested",
-  "date_range_incomplete",
-  "forecast_window_conflict"
-]New value: +[
+  "invalid_variable",
+  "variable_wrong_cadence",
+  "no_variables_requested",
+  "date_range_incomplete",
+  "forecast_window_conflict",
+  "date_order_invalid",
+  "invalid_timezone"
+]

Previous value: -"Language for matching and returning place names (ISO 639-1, e.g., \"en\", \"de\", \"zh\"). The API matches name against the localized index for this language, so set it to match the script of name — e.g. language \"zh\" for \"上海\", \"ru\" for \"Москва\". Default \"en\"; a query in a recognized non-Latin script (CJK, Hangul, Cyrillic, Arabic, Greek, Hebrew, Thai, Devanagari) that misses under \"en\" is retried once with the language inferred from its script."New value: +"Language for matching and returning place names (ISO 639-1, e.g., \"en\", \"de\", \"zh\"). The API matches name against the localized index for this language, so set it to match the script of name — e.g. language \"zh\" for \"上海\", \"ru\" for \"Москва\". This resolves a native-script name of three or more characters, which is matched by normalized prefix; a one- or two-character name must equal an index entry exactly, so setting language alone will not find \"서울\" or \"大阪\" — retry those with the full administrative name (\"서울특별시\", \"大阪市\") or the romanized name (\"Seoul\", \"Osaka\"). Default \"en\"; a query in a recognized non-Latin script (CJK, Hangul, Cyrillic, Arabic, Greek, Hebrew, Thai, Devanagari) that misses under \"en\" is retried once with the language inferred from its script."

Previous value: -"Place name to search — a bare city, region, or landmark (\"Seattle\", \"Mount Rainier\"). Do not fold in a region or country qualifier (\"Baoding\", not \"Baoding Hebei\"); use the country input to disambiguate. Weather tools require coordinates — use the lat/lon from this result."New value: +"Place name to search — a bare city, region, or landmark (\"Seattle\", \"Mount Rainier\"). Do not fold in a region or country qualifier (\"Baoding\", not \"Baoding Hebei\"); use the country input to disambiguate. A one- or two-character native-script name (\"서울\", \"大阪\") needs the full administrative name (\"서울특별시\", \"大阪市\") or the romanized name (\"Seoul\", \"Osaka\") — see the language field. Weather tools require coordinates — use the lat/lon from this result."

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

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

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

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

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

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

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

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

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

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

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

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

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

Added value: +[
+  "string",
+  "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": [
+      "canvas_id",
+      "tables",
+      "expires_at"
+    ]
+  },
+  {
+    "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: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding) Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "canvas_not_enabled",
+            "canvas_not_found"
+          ],
+          "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: -[
-  "canvas_id",
-  "tables",
-  "expires_at"
-]

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": [
+      "rows",
+      "row_count",
+      "canvas_id"
+    ]
+  },
+  {
+    "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: `canvas_not_enabled`: CANVAS_PROVIDER_TYPE is not set to duckdb `canvas_not_found`: The canvas_id is unknown or has expired (TTL is 24 h sliding) `system_catalog_access`: The SQL references a system catalog (information_schema, sqlite_master, pg_catalog, or a duckdb_*() function) `missing_table`: The SQL references a table that is not staged on this canvas — a mistyped name, or one that expired (24 h sliding TTL) or was dropped Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "canvas_not_enabled",
+            "canvas_not_found",
+            "system_catalog_access",
+            "missing_table"
+          ],
+          "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: -[
-  "rows",
-  "row_count",
-  "canvas_id"
-]

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": [
+      "latitude",
+      "longitude",
+      "timezone",
+      "record_count",
+      "data_source",
+      "truncated"
+    ]
+  },
+  {
+    "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: `invalid_variable`: An unknown air quality variable name was requested `no_variables_requested`: hourly_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — the CAMS archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "invalid_variable",
+            "no_variables_requested",
+            "date_range_incomplete",
+            "forecast_window_conflict"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "timezone",
-  "record_count",
-  "data_source",
-  "truncated"
-]

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": [
+      "latitude",
+      "longitude",
+      "elevation",
+      "timezone",
+      "date_range",
+      "record_count",
+      "daily",
+      "truncated"
+    ]
+  },
+  {
+    "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: `date_out_of_range`: start_date predates 1950-01-01 or end_date is after 2050-12-31 `date_order_invalid`: end_date is before start_date `no_variables_requested`: daily_variables was not provided or is empty `invalid_variable`: An unknown variable name or unsupported climate model was requested Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "date_out_of_range",
+            "date_order_invalid",
+            "no_variables_requested",
+            "invalid_variable"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "elevation",
-  "timezone",
-  "date_range",
-  "record_count",
-  "daily",
-  "truncated"
-]

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": [
+      "elevations"
+    ]
+  },
+  {
+    "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: `coordinate_count_mismatch`: latitudes and longitudes arrays have different lengths Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "coordinate_count_mismatch"
+          ],
+          "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: -[
-  "elevations"
-]

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": [
+      "latitude",
+      "longitude",
+      "elevation",
+      "timezone",
+      "record_count",
+      "truncated"
+    ]
+  },
+  {
+    "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_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name or unsupported model was requested `variable_wrong_cadence`: A variable the ensemble API documents under one cadence was passed in the other cadence field — for example precipitation_sum in hourly_variables, or precipitation in daily_variables Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "no_variables_requested",
+            "invalid_variable",
+            "variable_wrong_cadence"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "elevation",
-  "timezone",
-  "record_count",
-  "truncated"
-]

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": [
+      "latitude",
+      "longitude",
+      "timezone",
+      "record_count",
+      "daily",
+      "truncated"
+    ]
+  },
+  {
+    "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_variables_requested`: daily_variables was not provided or is empty `date_range_incomplete`: Only one of start_date / end_date was provided — GloFAS requires the pair together `forecast_days_conflict`: forecast_days was combined with start_date or end_date `date_order_invalid`: end_date is before start_date `date_out_of_range`: start_date predates 1984-01-01 or date range is otherwise invalid `invalid_variable`: An unknown discharge variable name was requested Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "no_variables_requested",
+            "date_range_incomplete",
+            "forecast_days_conflict",
+            "date_order_invalid",
+            "date_out_of_range",
+            "invalid_variable"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "timezone",
-  "record_count",
-  "daily",
-  "truncated"
-]

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": [
+      "latitude",
+      "longitude",
+      "elevation",
+      "timezone",
+      "utc_offset_seconds",
+      "record_count",
+      "truncated"
+    ]
+  },
+  {
+    "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: `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "invalid_variable",
+            "variable_wrong_cadence",
+            "no_variables_requested"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "elevation",
-  "timezone",
-  "utc_offset_seconds",
-  "record_count",
-  "truncated"
-]

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": [
+      "latitude",
+      "longitude",
+      "elevation",
+      "timezone",
+      "date_range",
+      "record_count",
+      "truncated"
+    ]
+  },
+  {
+    "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: `date_out_of_range`: start_date predates 1940-01-01 or end_date is within the ERA5 lag window `date_order_invalid`: end_date is before start_date `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `invalid_variable`: An unknown variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example cloud_cover in daily_variables, or temperature_2m_max in hourly_variables Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "date_out_of_range",
+            "date_order_invalid",
+            "no_variables_requested",
+            "invalid_variable",
+            "variable_wrong_cadence"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "elevation",
-  "timezone",
-  "date_range",
-  "record_count",
-  "truncated"
-]

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": [
+      "latitude",
+      "longitude",
+      "timezone",
+      "record_count",
+      "truncated"
+    ]
+  },
+  {
+    "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: `invalid_variable`: An unknown marine variable name was requested `variable_wrong_cadence`: A variable Open-Meteo documents under one cadence was passed in the other cadence field — for example wave_height in daily_variables, or wave_height_max in hourly_variables `no_variables_requested`: Neither hourly_variables nor daily_variables was provided `date_range_incomplete`: Only one of start_date / end_date was provided — the marine archive requires the pair together `forecast_window_conflict`: forecast_days or a non-zero past_days was combined with start_date or end_date Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "invalid_variable",
+            "variable_wrong_cadence",
+            "no_variables_requested",
+            "date_range_incomplete",
+            "forecast_window_conflict"
+          ],
+          "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: -[
-  "latitude",
-  "longitude",
-  "timezone",
-  "record_count",
-  "truncated"
-]

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": [
+      "results",
+      "count"
+    ]
+  },
+  {
+    "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`: The search returned no matching places Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "no_results"
+          ],
+          "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: -[
-  "results",
-  "count"
-]

Previous value: -"CMIP6 models to include: \"CMCC_CM2_VHR4\", \"FGOALS_f3_H\", \"HiRAM_SIT_HR\", \"MRI_AGCM3_2_S\", \"EC_Earth3P_HR\", \"MPI_ESM1_2_XR\", \"NICAM16_8S\". With 2+ models each variable column is suffixed with the model name (e.g. temperature_2m_max_MRI_AGCM3_2_S). Omit to use the API default (a single model, unsuffixed columns)."New value: +"CMIP6 models to include: CMCC_CM2_VHR4, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, EC_Earth3P_HR, MPI_ESM1_2_XR, NICAM16_8S. With 2+ models each variable column is suffixed with the model name (e.g. temperature_2m_max_MRI_AGCM3_2_S). Omit to use the API default (a single model, unsuffixed columns). A name outside this list is sent upstream rather than rejected here."

Previous value: -"Ensemble model to use: \"ecmwf_ifs025\" (51 members, global 0.25°), \"gfs025\" (31 members), \"icon_seamless\" (40 members), \"gem_global\" (21 members). Omit to use the API default blend."New value: +"Ensemble model to use, one name: ecmwf_ifs025_ensemble (51 members, global 0.25°), ecmwf_aifs025_ensemble (51, global 0.25°), ecmwf_ifs_europe_ensemble (51, Europe 9 km), ecmwf_aifs_europe_ensemble (51, Europe 31 km), google_weathernext2_ensemble (64, global 0.25°), ncep_gefs_seamless (31, global blend), ncep_gefs025 (31, global 0.25°), ncep_gefs05 (31, global 50 km, 35 days), ncep_aigefs025 (31, global 0.25°), icon_seamless_eps (20–40, global/Europe blend), icon_global_eps (40, global 26 km), icon_eu_eps (40, Europe 13 km), icon_d2_eps (20, Central Europe 2 km), gem_global_ensemble (21, global 0.25°), bom_access_global_ensemble (18, global 40 km), ukmo_global_ensemble_20km (18, global 20 km), ukmo_uk_ensemble_2km (3, UK 2 km), meteoswiss_icon_ch1_ensemble (11, Central Europe 1 km), meteoswiss_icon_ch2_ensemble (21, Central Europe 2 km). Member counts include the control run. Omit to use the API default blend. A name outside this list is sent upstream rather than rejected here, so a model Open-Meteo adds later still works."

Previous value: -"Ensemble model used (e.g. \"ecmwf_ifs025\") — echoes the requested models parameter. Absent when models was omitted (API default blend; the API reports no provenance)."New value: +"Ensemble model used (e.g. \"ecmwf_ifs025_ensemble\") — echoes the requested models parameter. Absent when models was omitted (API default blend; the API reports no provenance)."

Previous value: -"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_marine, openmeteo_get_air_quality, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Previous value: -"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_marine, openmeteo_get_air_quality, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Added value: +{
+  "description": "DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas.",
+  "type": "string"
+}

Added value: +{
+  "description": "End date for the archive range (YYYY-MM-DD, inclusive). Must be on or after start_date. Requires start_date — the pair must be sent together, and neither combines with forecast_days or past_days.",
+  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
+  "type": "string"
+}

Removed value: -5

Previous value: -"Forecast horizon in days (1–7). Default 5."New value: +"Forecast horizon in days (1–7). Omit for the upstream default of 5. Mutually exclusive with start_date/end_date — omit it entirely when pulling an archive range."

Added value: +{
+  "default": 0,
+  "description": "Include this many days of past data before today (0–92). Use for recent history instead of a start_date/end_date range. Default 0. Must stay 0 when start_date/end_date are used.",
+  "maximum": 92,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "Start date for the archive range (YYYY-MM-DD, e.g., \"2024-07-01\"). Real CAMS values go back to at least 2022-10-01; earlier dates return rows of nulls. Requires end_date — the pair must be sent together, and neither combines with forecast_days or past_days.",
+  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
+  "type": "string"
+}

Added value: +{
+  "description": "DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token.",
+  "type": "string"
+}

Previous value: -"Data source identifier — this is modeled forecast data from CAMS, not measured station data."New value: +"Data source identifier — this is modeled CAMS data, forecast or archive, not measured station data."

Previous value: -"Per-hour records with \"time\" (ISO 8601) + one key per requested variable. Units: pm2_5/pm10/dust in μg/m³, carbon_monoxide in μg/m³, nitrogen_dioxide/sulphur_dioxide/ozone in μg/m³, european_aqi/us_aqi as index values."New value: +"Per-hour records with \"time\" (ISO 8601) + one key per requested variable. Units: pm2_5/pm10/dust in μg/m³, carbon_monoxide in μg/m³, nitrogen_dioxide/sulphur_dioxide/ozone in μg/m³, european_aqi/us_aqi as index values. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve.",
+  "type": "string"
+}

Added value: +{
+  "description": "Total number of hourly records — the full upstream total when truncated is true, not the length of the hourly preview.",
+  "type": "number"
+}

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id.",
+  "type": "string"
+}

Added value: +{
+  "description": "True when the response was too large to return inline, so hourly carries a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request.",
+  "type": "boolean"
+}

Previous value: -[
-  "latitude",
-  "longitude",
-  "timezone",
-  "data_source"
-]New value: +[
+  "latitude",
+  "longitude",
+  "timezone",
+  "record_count",
+  "data_source",
+  "truncated"
+]

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve.",
+  "type": "string"
+}

Previous value: -"Daily variables to fetch across all ensemble members (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\"]). Each variable appears as temperature_2m_max_member01, … At least one of hourly_variables or daily_variables required."New value: +"Daily variables to fetch across all ensemble members (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\"]). Each variable appears as temperature_2m_max_member01, … Daily names only — an hourly name such as precipitation or temperature_2m belongs in hourly_variables and is rejected here; for a daily summary use its published aggregate (precipitation_sum, temperature_2m_max). At least one of hourly_variables or daily_variables required."

Previous value: -"Hourly variables to fetch across all ensemble members (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\"]). Each variable appears as temperature_2m_member01, temperature_2m_member02, … in the output. At least one of hourly_variables or daily_variables required."New value: +"Hourly variables to fetch across all ensemble members (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\"]). Each variable appears as temperature_2m_member01, temperature_2m_member02, … in the output. Hourly names only — a daily-only aggregate such as precipitation_sum or wind_speed_10m_max belongs in daily_variables and is rejected here; temperature_2m_max and temperature_2m_min are an exception, published here as 3-hourly aggregations as well as daily. At least one of hourly_variables or daily_variables required."

Added value: +{
+  "description": "Warning that a requested variable came back with no data across every member — names each variable whose unit is \"undefined\", which is how the endpoint reports a name the selected model does not carry.",
+  "type": "string"
+}

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve.",
+  "type": "string"
+}

Previous value: -"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\", \"sunrise\", \"sunset\", \"uv_index_max\"]). At least one of hourly_variables or daily_variables is required."New value: +"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\", \"sunrise\", \"sunset\", \"uv_index_max\"]). Daily names only — an hourly name such as cloud_cover or temperature_2m belongs in hourly_variables and is rejected here; for a daily summary of an hourly variable use its published aggregate (cloud_cover_max, cloud_cover_mean, cloud_cover_min). At least one of hourly_variables or daily_variables is required."

Previous value: -"Hourly variables to fetch (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"uv_index\", \"apparent_temperature\"]). At least one of hourly_variables or daily_variables is required."New value: +"Hourly variables to fetch (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"uv_index\", \"apparent_temperature\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables is required."

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve in the requested cadence.",
+  "type": "string"
+}

Previous value: -"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\"]). At least one of hourly_variables or daily_variables required."New value: +"Daily summary variables (e.g., [\"temperature_2m_max\", \"temperature_2m_min\", \"precipitation_sum\", \"wind_speed_10m_max\"]). Daily names only — an hourly name such as cloud_cover or temperature_2m belongs in hourly_variables and is rejected here; for a daily summary of an hourly variable use its published aggregate (cloud_cover_max, cloud_cover_mean, cloud_cover_min). At least one of hourly_variables or daily_variables required."

Previous value: -"Hourly ERA5 variables (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"soil_moisture_0_to_7cm\"]). At least one of hourly_variables or daily_variables required."New value: +"Hourly ERA5 variables (e.g., [\"temperature_2m\", \"precipitation\", \"wind_speed_10m\", \"relative_humidity_2m\", \"cloud_cover\", \"soil_moisture_0_to_7cm\"]). Hourly names only — a daily aggregate such as temperature_2m_max or precipitation_sum belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables required."

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the archive reports a name it parsed but does not serve in the requested cadence.",
+  "type": "string"
+}

Added value: +{
+  "description": "DataCanvas token for wide past_days, archive-range, or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas.",
+  "type": "string"
+}

Previous value: -"Daily marine summary variables (e.g., [\"wave_height_max\", \"wave_direction_dominant\", \"wave_period_max\"]). At least one of hourly_variables or daily_variables required."New value: +"Daily marine summary variables (e.g., [\"wave_height_max\", \"wave_direction_dominant\", \"wave_period_max\"]). Daily names only — an hourly name such as wave_height belongs in hourly_variables and is rejected here; for a daily summary use its published aggregate (wave_height_max). At least one of hourly_variables or daily_variables required."

Added value: +{
+  "description": "End date for the archive range (YYYY-MM-DD, inclusive). Must be on or after start_date. Requires start_date — the pair must be sent together, and neither combines with forecast_days or past_days.",
+  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
+  "type": "string"
+}

Removed value: -7

Previous value: -"Forecast horizon in days (1–7). Default 7."New value: +"Forecast horizon in days (1–8). Omit for the upstream default of 7. Mutually exclusive with start_date/end_date — omit it entirely when pulling an archive range."

Previous value: -7New value: +8

Previous value: -"Hourly marine variables (e.g., [\"wave_height\", \"wave_direction\", \"wave_period\", \"wind_wave_height\", \"swell_wave_height\"]). At least one of hourly_variables or daily_variables required."New value: +"Hourly marine variables (e.g., [\"wave_height\", \"wave_direction\", \"wave_period\", \"wind_wave_height\", \"swell_wave_height\"]). Hourly names only — a daily aggregate such as wave_height_max or wave_direction_dominant belongs in daily_variables and is rejected here. At least one of hourly_variables or daily_variables required."

Added value: +{
+  "default": 0,
+  "description": "Include this many days of past data before today (0–92). Use for recent history instead of a start_date/end_date range. Default 0. Must stay 0 when start_date/end_date are used.",
+  "maximum": 92,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "Start date for the archive range (YYYY-MM-DD, e.g., \"2024-07-01\"). Real wave values go back to at least 2022. Requires end_date — the pair must be sent together, and neither combines with forecast_days or past_days.",
+  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
+  "type": "string"
+}

Added value: +{
+  "description": "DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token.",
+  "type": "string"
+}

Previous value: -"Per-day summary records with \"time\" (YYYY-MM-DD) + variable keys (e.g., wave_height_max in meters, wave_direction_dominant in degrees, wave_period_max in seconds)."New value: +"Per-day summary records with \"time\" (YYYY-MM-DD) + variable keys (e.g., wave_height_max in meters, wave_direction_dominant in degrees, wave_period_max in seconds). When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Per-hour records with \"time\" (ISO 8601) + one key per requested variable (e.g., wave_height in meters, wave_direction in degrees, wave_period in seconds). Absent when only daily_variables were requested."New value: +"Per-hour records with \"time\" (ISO 8601) + one key per requested variable (e.g., wave_height in meters, wave_direction in degrees, wave_period in seconds). Absent when only daily_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Added value: +{
+  "description": "Warning that a requested variable came back with no data — names each column whose unit is \"undefined\", which is how the endpoint reports a name it parsed but does not serve.",
+  "type": "string"
+}

Added value: +{
+  "description": "Total number of records (hourly + daily rows) — the full upstream total when truncated is true, not the combined length of the hourly and daily previews.",
+  "type": "number"
+}

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id.",
+  "type": "string"
+}

Added value: +{
+  "description": "True when the response was too large to return inline, so hourly and daily carry a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id — every hourly and daily row, including any column the preview omits. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request.",
+  "type": "boolean"
+}

Previous value: -[
-  "latitude",
-  "longitude",
-  "timezone"
-]New value: +[
+  "latitude",
+  "longitude",
+  "timezone",
+  "record_count",
+  "truncated"
+]

Previous value: -"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Previous value: -"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_forecast, openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Previous value: -"Latitude in decimal degrees. Use openmeteo_geocode to resolve a place name."New value: +"Latitude in decimal degrees. Use openmeteo_search_locations to resolve a place name."

Previous value: -"Latitude in decimal degrees. Use openmeteo_geocode to resolve a place name to coordinates."New value: +"Latitude in decimal degrees. Use openmeteo_search_locations to resolve a place name to coordinates."

Previous value: -"DataCanvas token — present only when truncated is true (data spilled). Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."

Previous value: -"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable — per-model suffixed keys when 2+ models were requested (e.g. temperature_2m_max_CMCC_CM2_VHR4). Null values mean the model does not carry that variable. When truncated, contains only a preview; query canvas_id for the full dataset."New value: +"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable — per-model suffixed keys when 2+ models were requested (e.g. temperature_2m_max_CMCC_CM2_VHR4). Null values mean the model does not carry that variable. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Total number of daily records in this response"New value: +"Total number of daily records — the full upstream total when truncated is true, not the length of the daily preview."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true."New value: +"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."

Previous value: -"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset."New value: +"True when the response was too large to return inline, so daily carries a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request."

Previous value: -"Latitude in decimal degrees. Use openmeteo_geocode to resolve a place name to coordinates."New value: +"Latitude in decimal degrees. Use openmeteo_search_locations to resolve a place name to coordinates."

Previous value: -"DataCanvas token — present only when truncated is true (data spilled). Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."

Previous value: -"Per-day records with \"time\" (YYYY-MM-DD) + per-member columns (e.g., temperature_2m_max_member01). Absent when only hourly_variables were requested. When truncated, contains a preview only; query canvas_id for the full dataset."New value: +"Per-day records with \"time\" (YYYY-MM-DD) + per-member columns (e.g., temperature_2m_max_member01). Absent when only hourly_variables were requested. When truncated, contains a preview only — query canvas_id for the full dataset when one is present."

Previous value: -"Per-hour records with \"time\" (ISO 8601) + per-member columns for each requested variable (e.g., temperature_2m_member01, temperature_2m_member02). Absent when only daily_variables were requested. When truncated, contains a preview only; query canvas_id for the full dataset."New value: +"Per-hour records with \"time\" (ISO 8601) + per-member columns for each requested variable (e.g., temperature_2m_member01, temperature_2m_member02). Absent when only daily_variables were requested. When truncated, contains a preview only — query canvas_id for the full dataset when one is present."

Previous value: -"Total number of records (hourly + daily rows) in this response"New value: +"Total number of records (hourly + daily rows) — the full upstream total when truncated is true, not the combined length of the hourly and daily previews."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true."New value: +"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."

Previous value: -"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset — it holds every hourly and daily row, including any column the preview omits."New value: +"True when the response was too large to return inline, so hourly and daily carry a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id — every hourly and daily row, including any column the preview omits. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request."

Previous value: -"Latitude in decimal degrees. The API snaps to the nearest river — no river ID required. Use openmeteo_geocode to resolve a place name."New value: +"Latitude in decimal degrees. The API snaps to the nearest river — no river ID required. Use openmeteo_search_locations to resolve a place name."

Previous value: -"DataCanvas token — present only when truncated is true (data spilled). Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."

Previous value: -"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable containing discharge in m³/s, or null for coordinates outside GloFAS coverage. When truncated, contains only a preview; query canvas_id for the full dataset."New value: +"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable containing discharge in m³/s, or null for coordinates outside GloFAS coverage. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true."New value: +"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."

Previous value: -"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset."New value: +"True when the response was too large to return inline, so daily carries a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request."

Added value: +{
+  "description": "DataCanvas token for wide past_days or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas.",
+  "type": "string"
+}

Previous value: -"Latitude in decimal degrees (e.g., 47.6062 for Seattle). Use openmeteo_geocode to resolve a place name to coordinates."New value: +"Latitude in decimal degrees (e.g., 47.6062 for Seattle). Use openmeteo_search_locations to resolve a place name to coordinates."

Previous value: -"IANA timezone (e.g., \"America/Los_Angeles\") or \"auto\" to use the location's local timezone. Default \"auto\". The timezone from openmeteo_geocode is ideal to pass here."New value: +"IANA timezone (e.g., \"America/Los_Angeles\") or \"auto\" to use the location's local timezone. Default \"auto\". The timezone from openmeteo_search_locations is ideal to pass here."

Added value: +{
+  "description": "DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token.",
+  "type": "string"
+}

Previous value: -"Per-day records. Each object has a \"time\" field (YYYY-MM-DD) plus one key per requested variable with its value. Units are in the daily_units map. Absent when only hourly_variables were requested."New value: +"Per-day records. Each object has a \"time\" field (YYYY-MM-DD) plus one key per requested variable with its value. Units are in the daily_units map. Absent when only hourly_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Per-hour records. Each object has a \"time\" field (ISO 8601) plus one key per requested variable with its value. Units are in the hourly_units map. Absent when only daily_variables were requested."New value: +"Per-hour records. Each object has a \"time\" field (ISO 8601) plus one key per requested variable with its value. Units are in the hourly_units map. Absent when only daily_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Added value: +{
+  "description": "Total number of records (hourly + daily rows) — the full upstream total when truncated is true, not the combined length of the hourly and daily previews.",
+  "type": "number"
+}

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id.",
+  "type": "string"
+}

Added value: +{
+  "description": "True when the response was too large to return inline, so hourly and daily carry a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id — every hourly and daily row, including any column the preview omits. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request.",
+  "type": "boolean"
+}

Previous value: -[
-  "latitude",
-  "longitude",
-  "elevation",
-  "timezone",
-  "utc_offset_seconds"
-]New value: +[
+  "latitude",
+  "longitude",
+  "elevation",
+  "timezone",
+  "utc_offset_seconds",
+  "record_count",
+  "truncated"
+]

Previous value: -"Latitude in decimal degrees. Use openmeteo_geocode to resolve a place name to coordinates."New value: +"Latitude in decimal degrees. Use openmeteo_search_locations to resolve a place name to coordinates."

Previous value: -"DataCanvas token — present only when truncated is true (data spilled). Query with SQL using this token."New value: +"DataCanvas token for the staged full dataset. Present only when truncated is true AND DataCanvas is enabled (CANVAS_PROVIDER_TYPE=duckdb) — absent otherwise, in which case the preview is all this response carries. Query with SQL using this token."

Previous value: -"Per-day records with \"time\" (YYYY-MM-DD) + variable keys. Absent when only hourly_variables were requested. When truncated, contains only a preview; query canvas_id for the full dataset."New value: +"Per-day records with \"time\" (YYYY-MM-DD) + variable keys. Absent when only hourly_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Per-hour records with \"time\" (ISO 8601) + variable keys. Absent when only daily_variables were requested. When truncated, contains only a preview; query canvas_id for the full dataset."New value: +"Per-hour records with \"time\" (ISO 8601) + variable keys. Absent when only daily_variables were requested. When truncated, contains only a preview — query canvas_id for the full dataset when one is present."

Previous value: -"Total number of records (hourly or daily rows) in this response"New value: +"Total number of records (hourly + daily rows) — the full upstream total when truncated is true, not the combined length of the hourly and daily previews."

Previous value: -"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true."New value: +"DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only alongside canvas_id."

Previous value: -"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset — it holds every hourly and daily row, including any column the preview omits."New value: +"True when the response was too large to return inline, so hourly and daily carry a bounded preview rather than the full set. With DataCanvas enabled the complete data is staged at canvas_id — every hourly and daily row, including any column the preview omits. With it disabled there is no canvas_id, and the omitted rows are reached only by narrowing the request."

Previous value: -"Latitude of a coastal or ocean point. Use openmeteo_geocode to resolve a place name. Inland points return near-zero wave values."New value: +"Latitude of a coastal or ocean point. Use openmeteo_search_locations to resolve a place name. Inland points return near-zero wave values."

Previous value: -"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Previous value: -"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, or openmeteo_get_climate when truncated: true."New value: +"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, openmeteo_get_flood, or openmeteo_get_climate when truncated: true."

Added value: +{
+  "description": "DataCanvas token for wide reanalysis queries. When a result is too large to return inline — driven by total payload size, so a multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas.",
+  "type": "string"
+}

Previous value: -"End date for historical reanalysis (YYYY-MM-DD, inclusive). Must be on or after start_date."New value: +"End date for historical reanalysis (YYYY-MM-DD, inclusive). Must be on or after start_date. Requires start_date — the pair must be sent together, and neither combines with forecast_days."

Previous value: -"Number of forecast days ahead (1–210). Omit when fetching historical data only via start_date/end_date."New value: +"Number of forecast days ahead (1–210). Mutually exclusive with start_date/end_date — omit it entirely when pulling a historical range."

Previous value: -"Start date for historical reanalysis (YYYY-MM-DD, e.g., \"2023-01-01\"). GloFAS reanalysis covers from 1984-01-01."New value: +"Start date for historical reanalysis (YYYY-MM-DD, e.g., \"2023-01-01\"). GloFAS reanalysis covers from 1984-01-01. Requires end_date — the pair must be sent together, and neither combines with forecast_days."

Added value: +{
+  "description": "DataCanvas token — present only when truncated is true (data spilled). Query with SQL using this token.",
+  "type": "string"
+}

Previous value: -"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable containing discharge in m³/s, or null for coordinates outside GloFAS coverage."New value: +"Per-day records with \"time\" (YYYY-MM-DD) + one key per requested variable containing discharge in m³/s, or null for coordinates outside GloFAS coverage. When truncated, contains only a preview; query canvas_id for the full dataset."

Added value: +{
+  "description": "Total number of daily discharge records — the full staged count when truncated is true, not the length of the daily preview.",
+  "type": "number"
+}

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true.",
+  "type": "string"
+}

Added value: +{
+  "description": "True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset.",
+  "type": "boolean"
+}

Previous value: -[
-  "latitude",
-  "longitude",
-  "timezone",
-  "daily"
-]New value: +[
+  "latitude",
+  "longitude",
+  "timezone",
+  "record_count",
+  "daily",
+  "truncated"
+]

Previous value: -"DataCanvas token for multi-decade or multi-model queries. When a query exceeds ~500 records, results spill to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for multi-decade or multi-model queries. When a result is too large to return inline — driven by total payload size, so a wide multi-model pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."

Previous value: -"True when the response exceeded inline record limit and data spilled to canvas_id. Query the canvas for the full dataset."New value: +"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset."

Previous value: -"DataCanvas token for large multi-member queries. When records exceed ~500, results spill to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for large multi-member queries. When a result is too large to return inline — driven by total payload size, so a wide member fan-out can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."

Previous value: -"True when the response exceeded the inline record limit and data spilled to canvas_id. Query the canvas for the full dataset."New value: +"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset — it holds every hourly and daily row, including any column the preview omits."

Previous value: -"DataCanvas token for multi-year or multi-variable queries. When a query exceeds ~500 records, results spill to this canvas for SQL querying. Omit to create a fresh canvas."New value: +"DataCanvas token for multi-year or multi-variable queries. When a result is too large to return inline — driven by total payload size, so a wide multi-variable pull can spill at any row count — it spills to this canvas for SQL querying. Omit to create a fresh canvas."

Previous value: -"True when the response exceeded inline record limit and data spilled to canvas_id. Query the canvas for the full dataset."New value: +"True when the response was too large to return inline and data spilled to canvas_id. Query the canvas for the full dataset — it holds every hourly and daily row, including any column the preview omits."

Previous value: -"Result rows (capped at the canvas row limit, default 10 000)."New value: +"Result rows — a preview capped at 100. When row_count exceeds this, page the rest by re-issuing the SQL with LIMIT / OFFSET."

Removed value: -1

Previous value: -[
-  "latitude",
-  "longitude",
-  "start_date",
-  "end_date",
-  "daily_variables"
-]New value: +[
+  "latitude",
+  "longitude",
+  "start_date",
+  "end_date"
+]

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true.",
+  "type": "string"
+}

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true.",
+  "type": "string"
+}

Removed value: -1

Previous value: -[
-  "latitude",
-  "longitude",
-  "daily_variables"
-]New value: +[
+  "latitude",
+  "longitude"
+]

Added value: +{
+  "description": "DuckDB table name for the staged data — pass to openmeteo_dataframe_query. Present only when truncated is true.",
+  "type": "string"
+}

Added value: +{
+  "description": "ISO 3166-1 alpha-2 country code (e.g. \"US\", \"FR\") to disambiguate places that share a name. Omit for a global search.",
+  "pattern": "^[A-Za-z]{2}$",
+  "type": "string"
+}

Previous value: -"Place name to search. Can be a city, region, or landmark (e.g., \"Seattle\", \"Mount Rainier\"). Weather tools require coordinates — use the lat/lon from this result."New value: +"Place name to search — a bare city, region, or landmark (\"Seattle\", \"Mount Rainier\"). Do not fold in a region or country qualifier (\"Baoding\", not \"Baoding Hebei\"); use the country input to disambiguate. Weather tools require coordinates — use the lat/lon from this result."

Previous value: -"Canvas ID returned by openmeteo_get_historical or openmeteo_get_ensemble when truncated: true."New value: +"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, or openmeteo_get_climate when truncated: true."

Previous value: -"Canvas ID returned by openmeteo_get_historical or openmeteo_get_ensemble when truncated: true."New value: +"Canvas ID returned by openmeteo_get_historical, openmeteo_get_ensemble, or openmeteo_get_climate when truncated: true."