Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +"IANA timezone at the route destination, or null when unresolved. Contains information from timezone-boundary-builder, which is made available under the Open Database License (ODbL) v1.0. Timezone boundaries © OpenStreetMap contributors. US legal-zone cross-check: U.S. Department of Transportation, Bureau of Transportation Statistics (public domain)."

Added value: +{
+  "enum": [
+    "resolved",
+    "boundary_ambiguous",
+    "source_conflict",
+    "not_covered",
+    "unavailable"
+  ],
+  "type": "string"
+}

Added value: +"IANA timezone at the route origin, or null when unresolved. Contains information from timezone-boundary-builder, which is made available under the Open Database License (ODbL) v1.0. Timezone boundaries © OpenStreetMap contributors. US legal-zone cross-check: U.S. Department of Transportation, Bureau of Transportation Statistics (public domain)."

Added value: +{
+  "enum": [
+    "resolved",
+    "boundary_ambiguous",
+    "source_conflict",
+    "not_covered",
+    "unavailable"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Attach current conditions sampled along the route corridor (default: false). Post-route annotation only: weather does not change the returned path. Extra upstream lookup, opt-in only.",
+  "type": "boolean"
+}

Previous value: -"Include live traffic conditions along route (default: true)"New value: +"Apply post-route live-traffic ETA enrichment (default: true). Traffic does not change the returned path; truck adjustments are slowdown-only."

Previous value: -"Difference between effective and base duration, in seconds; zero when traffic did not change the duration."New value: +"Effective duration minus base duration, in seconds. Positive means traffic made the ETA slower, negative means it made the ETA faster, and zero means the duration was unchanged. For truck costing, general traffic evidence is slowdown-only, so this value is never negative."

Previous value: -"Neutral, stable reason code for what happened to traffic evidence on this request. `TRAFFIC_DISABLED`: no traffic evidence was sought. `PROVIDER_DISABLED`: evidence was sought but the traffic backend was unreachable or unconfigured. `QUOTA_EXHAUSTED`: the traffic backend's spend allotment was exhausted. `NO_SEGMENT_MATCH`: the backend answered but no sample matched a live road segment. `INSUFFICIENT_COVERAGE`: the backend reported no sensor coverage for the sampled area. `STALE_EVIDENCE`: an adjustment was computed, but the oldest observation behind it is older than this response is willing to call current. `UPSTREAM_ERROR`: a generic or network failure prevented reading traffic evidence. `APPLIED`: an adjustment was computed and reached this response; inspect the nullable freshness and source-time fields to determine whether its observation age is known. "New value: +"Neutral, stable reason code for what happened to traffic evidence on this request. `TRAFFIC_DISABLED`: no traffic evidence was sought. `PROVIDER_DISABLED`: evidence was sought but the traffic backend was not configured. `QUOTA_EXHAUSTED`: the traffic backend's spend allotment was exhausted. `NO_SEGMENT_MATCH`: the backend answered but no sample matched a live road segment. `INSUFFICIENT_COVERAGE`: the backend reported no sensor coverage for the sampled area. `STALE_EVIDENCE`: an adjustment was computed, but the oldest observation behind it is older than this response is willing to call current. `UPSTREAM_ERROR`: a configured backend or network failure prevented reading all requested traffic evidence. `APPLIED`: an adjustment was computed and reached this response; inspect the nullable freshness and source-time fields to determine whether its observation age is known. Material failure codes take precedence over `APPLIED` when only partial evidence adjusted the duration; `duration_influenced` remains true in that case."

Added value: +{
+  "description": "Age, in seconds, of the oldest retrieved traffic tile bytes used by this response. This is cache/acquisition age, not traffic-observation freshness. Null for point traffic or when tile cache metadata is unavailable.",
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "description": "ISO 8601 time when the oldest traffic tile bytes used by this response were retrieved or cached. This is acquisition metadata, not the time the traffic was observed. Null for point traffic or when tile cache metadata is unavailable.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"Percentage of the route's distance backed by a live traffic observation. Null today: traffic is sampled at a few points along the route and each answer covers a point rather than a measured length of road, so no honest percentage can be derived."New value: +"Percentage of the route's distance backed by a live traffic observation. This is a MEASURED figure, not an attributed one: it sums the length of road each traffic observation actually matched and divides by the route distance. Coverage can range from sparse observations to most of a corridor, depending on the evidence available for this request; use the returned value rather than assuming a sampling pattern. A low percentage does not mean the ETA is unreliable; it means most of the route's duration comes from the road network's own speeds rather than from live observation. Null when no live traffic observation carried a measurable length."

Previous value: -[
-  "mode",
-  "outcome",
-  "path_influenced",
-  "duration_influenced",
-  "source_as_of",
-  "route_coverage_pct",
-  "freshness_seconds",
-  "routing_release_id",
-  "overlay_epoch"
-]New value: +[
+  "mode",
+  "outcome",
+  "path_influenced",
+  "duration_influenced",
+  "source_as_of",
+  "route_coverage_pct",
+  "freshness_seconds",
+  "retrieved_at",
+  "retrieval_age_seconds",
+  "routing_release_id",
+  "overlay_epoch"
+]

Added value: +{
+  "description": "Number of genuine motorized alternate routes to request (0, 1, or 2). Positive values require no via waypoints.",
+  "maximum": 2,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +20

Added value: +1

Added value: +100

Added value: +0

Added value: +2000

Added value: +{
+  "description": "When true, include available route elevation fields. Point elevation may be returned for the origin and destination. Cumulative gain/loss is returned only when route-profile elevation is available.",
+  "type": "boolean"
+}

Previous value: -"Route geometry shape control. \"none\" returns origin/destination Points only. \"encoded\" returns the Valhalla polyline6 string in a top-level `geometry` field plus origin/destination Points (≈95% smaller than raw GeoJSON; decode with @mapbox/polyline at precision 6). \"full\" emits decoded coordinates as a LineString in `geojson.features[0]`. When omitted (default), small routes use \"full\" and long routes auto-downgrade to \"encoded\" with a `geometry_truncated` warning."New value: +"Route geometry shape control. \"none\" returns origin/destination Points only. \"encoded\" returns an encoded polyline6 string in a top-level `geometry` field plus origin/destination Points (≈95% smaller than raw GeoJSON; decode with @mapbox/polyline at precision 6). \"full\" emits decoded coordinates as a LineString in `geojson.features[0]`. When omitted (default), small routes use \"full\" and long routes auto-downgrade to \"encoded\" with a `geometry_truncated` warning."

Added value: +300

Added value: +0

Added value: +30

Added value: +0

Added value: +60

Added value: +0

Added value: +200

Added value: +0

Added value: +10

Added value: +0

Added value: +1

Added value: +0

Added value: +1

Added value: +0

Previous value: -"Preset vehicle (10 total, see lib/truck-costing.ts:VEHICLE_PROFILE_IDS): DRY_VAN_53, FLATBED_48, FLATBED_40, STEP_DECK, TANKER, BOX_TRUCK_26, AUTO_CARRIER, SPRINTER_VAN, DOUBLE_TRAILER, OVERSIZE. Sets height/weight/length automatically. Individual params override."New value: +"Preset vehicle profile (10): DRY_VAN_53, FLATBED_48, FLATBED_40, STEP_DECK, TANKER, BOX_TRUCK_26, AUTO_CARRIER, SPRINTER_VAN, DOUBLE_TRAILER, OVERSIZE. Each sets height/weight/length/axle_count for that vehicle class in one parameter (e.g. DRY_VAN_53 = 4.11m tall, 36.3t, 22.25m long, 5 axles; OVERSIZE = 4.88m tall, 3.66m wide, 45.36t). The response echoes the applied dims in costing_options.truck. Any individual truck_height/truck_weight/etc. overrides a single field."

Added value: +64

Previous value: -"Intermediate stops in order; same shape as from/to"New value: +"Intermediate stops in order; same shape as from/to. Up to 48 waypoints (max 50 total locations)."

Added value: +48

Previous value: -falseNew value: +true

Added value: +{
+  "items": {
+    "additionalProperties": true,
+    "properties": {
+      "distance": {
+        "type": "number"
+      },
+      "distance_units": {
+        "enum": [
+          "miles",
+          "kilometers"
+        ],
+        "type": "string"
+      },
+      "duration_seconds": {
+        "type": "number"
+      },
+      "geojson": {
+        "$ref": "#/properties/geojson"
+      },
+      "geometry": {
+        "additionalProperties": {},
+        "type": "object"
+      },
+      "legs": {
+        "items": {
+          "additionalProperties": true,
+          "properties": {
+            "distance": {
+              "type": "number"
+            },
+            "duration_seconds": {
+              "type": "number"
+            },
+            "leg": {
+              "type": "number"
+            },
+            "maneuvers": {
+              "type": "number"
+            }
+          },
+          "required": [
+            "leg",
+            "distance",
+            "duration_seconds",
+            "maneuvers"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "maneuvers": {
+        "items": {
+          "$ref": "#/properties/items/items"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "distance",
+      "distance_units",
+      "duration_seconds",
+      "legs",
+      "maneuvers"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Arrival time derived from the base duration in the destination's local time, or null when the local timezone is unavailable.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Arrival time derived from the base duration, expressed as an ISO 8601 UTC timestamp.",
+  "type": "string"
+}

Added value: +{
+  "description": "Route duration before any traffic-based adjustment, in seconds.",
+  "type": "number"
+}

Added value: +{
+  "description": "Authoritative arrival time in the destination's local time, or null when the local timezone is unavailable.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Authoritative arrival time for this response, expressed as an ISO 8601 UTC timestamp.",
+  "type": "string"
+}

Added value: +{
+  "description": "Authoritative duration for this response, in seconds, after any applicable traffic-based adjustment.",
+  "type": "number"
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Difference between effective and base duration, in seconds; zero when traffic did not change the duration.",
+  "type": "number"
+}

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "duration_influenced": {
+      "description": "Whether traffic actually changed the duration returned by THIS request. False when no traffic adjustment was applied, even if traffic was requested and fetched successfully.",
+      "type": "boolean"
+    },
+    "freshness_seconds": {
+      "description": "Age, in seconds, of the oldest traffic observation behind this response. Null when the traffic provider did not report an observation age.",
+      "type": [
+        "number",
+        "null"
+      ]
+    },
+    "mode": {
+      "description": "Which traffic-processing rung this request attempted. `none`: no traffic data was consulted. `eta_enrichment`: after the route was chosen, traffic evidence was sought only to adjust its estimated duration; the roads returned are unchanged. The attempt may fail or produce no adjustment, so inspect `outcome` and `duration_influenced` for what reached this answer. `candidate_ranking`: traffic re-ranked several candidate routes against each other. `native_live_routing`: live speeds were used to choose which roads to take. `native_predicted_routing`: as above, plus time-of-day predicted speeds for a future departure.",
+      "enum": [
+        "none",
+        "eta_enrichment",
+        "candidate_ranking",
+        "native_live_routing",
+        "native_predicted_routing"
+      ],
+      "type": "string"
+    },
+    "outcome": {
+      "description": "Neutral, stable reason code for what happened to traffic evidence on this request. `TRAFFIC_DISABLED`: no traffic evidence was sought. `PROVIDER_DISABLED`: evidence was sought but the traffic backend was unreachable or unconfigured. `QUOTA_EXHAUSTED`: the traffic backend's spend allotment was exhausted. `NO_SEGMENT_MATCH`: the backend answered but no sample matched a live road segment. `INSUFFICIENT_COVERAGE`: the backend reported no sensor coverage for the sampled area. `STALE_EVIDENCE`: an adjustment was computed, but the oldest observation behind it is older than this response is willing to call current. `UPSTREAM_ERROR`: a generic or network failure prevented reading traffic evidence. `APPLIED`: an adjustment was computed and reached this response; inspect the nullable freshness and source-time fields to determine whether its observation age is known. ",
+      "enum": [
+        "TRAFFIC_DISABLED",
+        "PROVIDER_DISABLED",
+        "QUOTA_EXHAUSTED",
+        "NO_SEGMENT_MATCH",
+        "INSUFFICIENT_COVERAGE",
+        "STALE_EVIDENCE",
+        "UPSTREAM_ERROR",
+        "APPLIED"
+      ],
+      "type": "string"
+    },
+    "overlay_epoch": {
+      "description": "Identifier of the live-speed overlay applied to the road network. Null today: no live-speed overlay is in use.",
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "path_influenced": {
+      "description": "Whether traffic could have changed WHICH roads were returned. False today: the route is selected from the road network's own speeds, so traffic never changes the path — only the estimated duration.",
+      "type": "boolean"
+    },
+    "route_coverage_pct": {
+      "description": "Percentage of the route's distance backed by a live traffic observation. Null today: traffic is sampled at a few points along the route and each answer covers a point rather than a measured length of road, so no honest percentage can be derived.",
+      "type": [
+        "number",
+        "null"
+      ]
+    },
+    "routing_release_id": {
+      "description": "Identifier of the road-network build that produced this route. Null today: the routing engine does not report one.",
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "source_as_of": {
+      "description": "ISO 8601 time at which the traffic observations behind this response were made. Null when the traffic provider did not report an observation time.",
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "required": [
+    "mode",
+    "outcome",
+    "path_influenced",
+    "duration_influenced",
+    "source_as_of",
+    "route_coverage_pct",
+    "freshness_seconds",
+    "routing_release_id",
+    "overlay_epoch"
+  ],
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "current_speed_admitted": {
+      "const": true,
+      "type": "boolean"
+    },
+    "max_age_seconds": {
+      "exclusiveMinimum": 0,
+      "type": "integer"
+    },
+    "observed_at": {
+      "type": "string"
+    },
+    "release_id": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "current_speed_admitted"
+  ],
+  "type": "object"
+}

Added value: +[
+  "base_duration_seconds",
+  "effective_duration_seconds",
+  "traffic_delay_seconds",
+  "base_arrival_utc",
+  "base_arrival_local",
+  "effective_arrival_utc",
+  "effective_arrival_local",
+  "traffic_provenance"
+]

Added value: +{
+  "description": "Route geometry shape control. \"none\" returns origin/destination Points only. \"encoded\" returns the Valhalla polyline6 string in a top-level `geometry` field plus origin/destination Points (≈95% smaller than raw GeoJSON; decode with @mapbox/polyline at precision 6). \"full\" emits decoded coordinates as a LineString in `geojson.features[0]`. When omitted (default), small routes use \"full\" and long routes auto-downgrade to \"encoded\" with a `geometry_truncated` warning.",
+  "enum": [
+    "none",
+    "encoded",
+    "full"
+  ],
+  "type": "string"
+}

Previous value: -"Origin address or 'lat,lon'"New value: +"Origin: address string ('Houston, TX'), 'lat,lon' string, or { lat, lon } object"

Added value: +1

Added value: +"#/properties/from"

Previous value: -"Destination address or 'lat,lon'"New value: +"Destination: address string ('Houston, TX'), 'lat,lon' string, or { lat, lon } object"

Removed value: -"string"

Previous value: -"Intermediate stops in order"New value: +"Intermediate stops in order; same shape as from/to"

Added value: +"#/properties/from"

Removed value: -"string"

Previous value: -"Distance units (default: miles)"New value: +"Distance units (default: miles). Accepts 'km'/'mi' as aliases."

Previous value: -"Preset vehicle: DRY_VAN_53, FLATBED_48, TANKER, BOX_TRUCK_26, SPRINTER_VAN, DOUBLE_TRAILER, OVERSIZE. Sets height/weight/length automatically. Individual params override."New value: +"Preset vehicle (10 total, see lib/truck-costing.ts:VEHICLE_PROFILE_IDS): DRY_VAN_53, FLATBED_48, FLATBED_40, STEP_DECK, TANKER, BOX_TRUCK_26, AUTO_CARRIER, SPRINTER_VAN, DOUBLE_TRAILER, OVERSIZE. Sets height/weight/length automatically. Individual params override."

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "costing_options": {
+      "additionalProperties": {},
+      "type": "object"
+    },
+    "display_hint": {
+      "additionalProperties": true,
+      "properties": {
+        "layout": {
+          "anyOf": [
+            {
+              "enum": [
+                "summary",
+                "table",
+                "summary+table",
+                "map",
+                "chart+table"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "string"
+            }
+          ]
+        },
+        "map_layers": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "preferred_charts": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "sections": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "layout"
+      ],
+      "type": "object"
+    },
+    "geojson": {
+      "additionalProperties": true,
+      "properties": {
+        "features": {
+          "items": {
+            "additionalProperties": true,
+            "properties": {
+              "geometry": {
+                "anyOf": [
+                  {
+                    "additionalProperties": true,
+                    "properties": {
+                      "coordinates": {},
+                      "geometries": {
+                        "items": {},
+                        "type": "array"
+                      },
+                      "type": {
+                        "anyOf": [
+                          {
+                            "enum": [
+                              "Point",
+                              "LineString",
+                              "Polygon",
+                              "MultiPoint",
+                              "MultiLineString",
+                              "MultiPolygon",
+                              "GeometryCollection"
+                            ],
+                            "type": "string"
+                          },
+                          {
+                            "type": "string"
+                          }
+                        ]
+                      }
+                    },
+                    "required": [
+                      "type"
+                    ],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "id": {
+                "type": [
+                  "string",
+                  "number"
+                ]
+              },
+              "properties": {
+                "additionalProperties": {},
+                "type": "object"
+              },
+              "type": {
+                "const": "Feature",
+                "type": "string"
+              }
+            },
+            "required": [
+              "type",
+              "geometry"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "type": {
+          "const": "FeatureCollection",
+          "type": "string"
+        }
+      },
+      "required": [
+        "type",
+        "features"
+      ],
+      "type": "object"
+    },
+    "items": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "begin_shape_index": {
+            "type": "number"
+          },
+          "distance": {
+            "type": [
+              "number",
+              "string"
+            ]
+          },
+          "instruction": {
+            "type": "string"
+          },
+          "time": {
+            "type": "number"
+          },
+          "type": {
+            "type": "number"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "metrics": {
+      "items": {
+        "additionalProperties": {},
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "summary": {
+      "additionalProperties": {},
+      "description": "Map of scalar facts the LLM should surface verbatim",
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Added value: +false