chathome.lu — Luxembourg Real Estate

Search Rental Listings

search_rentals

Read-onlyIdempotent

Search active Luxembourg rentals by location, rooms, area, property type, positive-evidence amenities, advertised base rent, or a separate strict confirmed monthly-obligation ceiling. The strict ceiling excludes listings when required recurring charges, fees, evidence, or source freshness are incomplete. Returned counts include explicit completeness metadata; every sourced result links the original agency listing and states its latest catalogue re-sighting time.

Input Schema

Name	Required	Description
`sort`	No
`limit`	No
`garden`	No
`locale`	No	Response locale: en, fr, de, lu (Luxembourgish), pt (default: en; 'lb' is a deprecated alias for 'lu')
`balcony`	No
`commune`	No	Supported municipality, city quarter or village name; use resolve_location if ambiguous
`minBeds`	No
`elevator`	No
`maxPrice`	No
`minPrice`	No
`furnished`	No
`maxAreaSqm`	No
`minAreaSqm`	No
`parkingType`	No
`petsAllowed`	No
`minBathrooms`	No
`propertyType`	No
`includePhotos`	No
`maxTotalMonthly`	No	Rental-only confirmed all-in monthly ceiling; missing cost evidence is excluded
`shownListingIds`	No	Already shown listing IDs, accumulated across pages. Excludes those IDs from this live result window; not a stable market snapshot.
`includeCrossBorder`	No	Include supported Grande Région inventory; default false keeps Luxembourg-only compatibility

Output Schema

Name	Required	Description
`note`	No
`total`	Yes	Exact number of listing objects returned in this response; not the number of matches in the market.
`trust`	No
`source`	No
`hasMore`	No
`ranking`	No
`session`	No
`followUp`	No
`listings`	Yes
`countKind`	No
`truncated`	No
`nextCursor`	No
`matchingCount`	No
`returnedCount`	No
`understanding`	No	What the engine understood from the request. notChecked lists wishes no returned home is confirmed to have.
`searchExhaustive`	No
`matchingCountKind`	No
`excludedUnprovenCount`	No	Upstream rows omitted because public facts could not prove every requested hard filter.
`marketMatchingUpperBound`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed47 schema fields changedOct 30, 2026

addedInput schema / additionalProperties
```
Added value: +false
```
removedInput schema / properties / balcony / description
```
Removed value: -"Require a source-confirmed balcony"
```

changedInput schema / properties / commune / description

Previous value: -"Luxembourg commune name or slug"New value: +"Supported municipality, city quarter or village name; use resolve_location if ambiguous"

addedInput schema / properties / commune / maxLength
```
Added value: +150
```
addedInput schema / properties / commune / minLength
```
Added value: +1
```

removedInput schema / properties / elevator / description

Removed value: -"Require positive source evidence of a lift/elevator"

removedInput schema / properties / furnished / description

Removed value: -"Require positive source evidence that the rental is furnished"

removedInput schema / properties / garden / description
```
Removed value: -"Require a source-confirmed garden"
```

addedInput schema / properties / includeCrossBorder

Added value: +{
+  "description": "Include supported Grande Région inventory; default false keeps Luxembourg-only compatibility",
+  "type": "boolean"
+}

removedInput schema / properties / includePhotos / description

Removed value: -"Attach thumbnail photos of the top results as image content blocks (default: true). Set false for a lean text-only response."

removedInput schema / properties / limit / description

Removed value: -"Number of results to return (max 50, default 20)"

changedInput schema / properties / limit / type

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

removedInput schema / properties / maxAreaSqm / description
```
Removed value: -"Maximum area in m²"
```
addedInput schema / properties / maxAreaSqm / maximum
```
Added value: +100000
```
addedInput schema / properties / maxAreaSqm / minimum
```
Added value: +0
```

removedInput schema / properties / maxPrice / description

Removed value: -"Maximum advertised base monthly rent in EUR, excluding separate charges"

addedInput schema / properties / maxPrice / maximum
```
Added value: +100000000
```
addedInput schema / properties / maxPrice / minimum
```
Added value: +0
```

changedInput schema / properties / maxTotalMonthly / description

Previous value: -"Strict maximum confirmed monthly obligation in EUR: advertised rent plus source-confirmed required recurring charges and fees. Listings with missing, estimated, conflicting, or stale cost evidence are excluded."New value: +"Rental-only confirmed all-in monthly ceiling; missing cost evidence is excluded"

addedInput schema / properties / maxTotalMonthly / maximum
```
Added value: +100000
```
addedInput schema / properties / maxTotalMonthly / minimum
```
Added value: +0
```
removedInput schema / properties / minAreaSqm / description
```
Removed value: -"Minimum area in m²"
```
addedInput schema / properties / minAreaSqm / maximum
```
Added value: +100000
```
addedInput schema / properties / minAreaSqm / minimum
```
Added value: +0
```
removedInput schema / properties / minBathrooms / description
```
Removed value: -"Minimum number of bathrooms"
```
addedInput schema / properties / minBathrooms / maximum
```
Added value: +100
```
addedInput schema / properties / minBathrooms / minimum
```
Added value: +0
```
changedInput schema / properties / minBathrooms / type
```
Previous value: -"number"New value: +"integer"
```
removedInput schema / properties / minBeds / description
```
Removed value: -"Minimum number of bedrooms"
```
addedInput schema / properties / minBeds / maximum
```
Added value: +100
```
addedInput schema / properties / minBeds / minimum
```
Added value: +0
```

changedInput schema / properties / minBeds / type

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

removedInput schema / properties / minPrice / description
```
Removed value: -"Minimum monthly rent in EUR"
```
addedInput schema / properties / minPrice / maximum
```
Added value: +100000000
```
addedInput schema / properties / minPrice / minimum
```
Added value: +0
```
removedInput schema / properties / parkingType / description
```
Removed value: -"Require source-backed parking evidence"
```

removedInput schema / properties / petsAllowed / description

Removed value: -"Require positive source evidence that pets are allowed"

removedInput schema / properties / propertyType / description

Removed value: -"Property type: apartment, house, studio, room, etc."

addedInput schema / properties / propertyType / enum

Added value: +[
+  "apartment",
+  "house",
+  "studio",
+  "room",
+  "commercial",
+  "office",
+  "land",
+  "multi_unit_building",
+  "garage_parking"
+]

addedInput schema / properties / shownListingIds

Added value: +{
+  "description": "Already shown listing IDs, accumulated across pages. Excludes those IDs from this live result window; not a stable market snapshot.",
+  "items": {
+    "pattern": "^[A-Za-z0-9_-]{1,128}$",
+    "type": "string"
+  },
+  "maxItems": 200,
+  "type": "array"
+}

removedInput schema / properties / sort / description

Removed value: -"Sort the proven result set. price-asc means base rent, not all-in monthly cost."

addedOutput schema / properties / listings / items / properties / match / properties / closeReasons

Added value: +{
+  "items": {
+    "oneOf": [
+      {
+        "additionalProperties": false,
+        "properties": {
+          "concept": {
+            "type": "string"
+          },
+          "criterionId": {
+            "type": "string"
+          },
+          "kind": {
+            "const": "not_confirmed",
+            "type": "string"
+          },
+          "label": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "criterionId",
+          "concept",
+          "label"
+        ],
+        "type": "object"
+      },
+      {
+        "additionalProperties": false,
+        "properties": {
+          "actual": {
+            "type": "number"
+          },
+          "concept": {
+            "type": "string"
+          },
+          "criterionId": {
+            "type": "string"
+          },
+          "delta": {
+            "minimum": 0,
+            "type": "number"
+          },
+          "direction": {
+            "enum": [
+              "over",
+              "under"
+            ],
+            "type": "string"
+          },
+          "expected": {
+            "type": "number"
+          },
+          "field": {
+            "type": "string"
+          },
+          "kind": {
+            "const": "numeric",
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "criterionId",
+          "concept",
+          "field",
+          "expected",
+          "actual",
+          "delta",
+          "direction"
+        ],
+        "type": "object"
+      },
+      {
+        "additionalProperties": false,
+        "properties": {
+          "actualLocalityId": {
+            "type": "string"
+          },
+          "actualName": {
+            "type": "string"
+          },
+          "askedLocalityId": {
+            "type": "string"
+          },
+          "askedName": {
+            "type": "string"
+          },
+          "distanceKm": {
+            "maximum": 12,
+            "minimum": 0,
+            "type": "number"
+          },
+          "kind": {
+            "const": "nearby_commune",
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "askedLocalityId",
+          "actualLocalityId",
+          "askedName",
+          "actualName",
+          "distanceKm"
+        ],
+        "type": "object"
+      }
+    ]
+  },
+  "type": "array"
+}

changedOutput schema / properties / listings / items / properties / match / properties / resultKind / anyOf

Previous value: -[
-  {
-    "enum": [
-      "strict_match",
-      "partial_match",
-      "relaxed_alternative"
-    ],
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "enum": [
+      "match",
+      "close"
+    ],
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / understanding / properties / checked / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / commutes / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / notChecked / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / places / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

Changed6 schema fields changedOct 24, 2026

removedOutput schema / properties / listings / items / properties / match / properties / closeReasons

Removed value: -{
-  "items": {
-    "oneOf": [
-      {
-        "additionalProperties": false,
-        "properties": {
-          "concept": {
-            "type": "string"
-          },
-          "criterionId": {
-            "type": "string"
-          },
-          "kind": {
-            "const": "not_confirmed",
-            "type": "string"
-          },
-          "label": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "kind",
-          "criterionId",
-          "concept",
-          "label"
-        ],
-        "type": "object"
-      },
-      {
-        "additionalProperties": false,
-        "properties": {
-          "actual": {
-            "type": "number"
-          },
-          "concept": {
-            "type": "string"
-          },
-          "criterionId": {
-            "type": "string"
-          },
-          "delta": {
-            "minimum": 0,
-            "type": "number"
-          },
-          "direction": {
-            "enum": [
-              "over",
-              "under"
-            ],
-            "type": "string"
-          },
-          "expected": {
-            "type": "number"
-          },
-          "field": {
-            "type": "string"
-          },
-          "kind": {
-            "const": "numeric",
-            "type": "string"
-          }
-        },
-        "required": [
-          "kind",
-          "criterionId",
-          "concept",
-          "field",
-          "expected",
-          "actual",
-          "delta",
-          "direction"
-        ],
-        "type": "object"
-      },
-      {
-        "additionalProperties": false,
-        "properties": {
-          "actualLocalityId": {
-            "type": "string"
-          },
-          "actualName": {
-            "type": "string"
-          },
-          "askedLocalityId": {
-            "type": "string"
-          },
-          "askedName": {
-            "type": "string"
-          },
-          "distanceKm": {
-            "maximum": 12,
-            "minimum": 0,
-            "type": "number"
-          },
-          "kind": {
-            "const": "nearby_commune",
-            "type": "string"
-          }
-        },
-        "required": [
-          "kind",
-          "askedLocalityId",
-          "actualLocalityId",
-          "askedName",
-          "actualName",
-          "distanceKm"
-        ],
-        "type": "object"
-      }
-    ]
-  },
-  "type": "array"
-}

changedOutput schema / properties / listings / items / properties / match / properties / resultKind / anyOf

Previous value: -[
-  {
-    "enum": [
-      "match",
-      "close"
-    ],
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "enum": [
+      "strict_match",
+      "partial_match",
+      "relaxed_alternative"
+    ],
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / understanding / properties / checked / items / properties / force / enum

Previous value: -[
-  "dealbreaker",
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / commutes / items / properties / force / enum

Previous value: -[
-  "dealbreaker",
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / notChecked / items / properties / force / enum

Previous value: -[
-  "dealbreaker",
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / places / items / properties / force / enum

Previous value: -[
-  "dealbreaker",
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "must",
+  "should",
+  "nice"
+]

Changed6 schema fields changedOct 23, 2026

addedOutput schema / properties / listings / items / properties / match / properties / closeReasons

Added value: +{
+  "items": {
+    "oneOf": [
+      {
+        "additionalProperties": false,
+        "properties": {
+          "concept": {
+            "type": "string"
+          },
+          "criterionId": {
+            "type": "string"
+          },
+          "kind": {
+            "const": "not_confirmed",
+            "type": "string"
+          },
+          "label": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "criterionId",
+          "concept",
+          "label"
+        ],
+        "type": "object"
+      },
+      {
+        "additionalProperties": false,
+        "properties": {
+          "actual": {
+            "type": "number"
+          },
+          "concept": {
+            "type": "string"
+          },
+          "criterionId": {
+            "type": "string"
+          },
+          "delta": {
+            "minimum": 0,
+            "type": "number"
+          },
+          "direction": {
+            "enum": [
+              "over",
+              "under"
+            ],
+            "type": "string"
+          },
+          "expected": {
+            "type": "number"
+          },
+          "field": {
+            "type": "string"
+          },
+          "kind": {
+            "const": "numeric",
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "criterionId",
+          "concept",
+          "field",
+          "expected",
+          "actual",
+          "delta",
+          "direction"
+        ],
+        "type": "object"
+      },
+      {
+        "additionalProperties": false,
+        "properties": {
+          "actualLocalityId": {
+            "type": "string"
+          },
+          "actualName": {
+            "type": "string"
+          },
+          "askedLocalityId": {
+            "type": "string"
+          },
+          "askedName": {
+            "type": "string"
+          },
+          "distanceKm": {
+            "maximum": 12,
+            "minimum": 0,
+            "type": "number"
+          },
+          "kind": {
+            "const": "nearby_commune",
+            "type": "string"
+          }
+        },
+        "required": [
+          "kind",
+          "askedLocalityId",
+          "actualLocalityId",
+          "askedName",
+          "actualName",
+          "distanceKm"
+        ],
+        "type": "object"
+      }
+    ]
+  },
+  "type": "array"
+}

changedOutput schema / properties / listings / items / properties / match / properties / resultKind / anyOf

Previous value: -[
-  {
-    "enum": [
-      "strict_match",
-      "partial_match",
-      "relaxed_alternative"
-    ],
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "enum": [
+      "match",
+      "close"
+    ],
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / understanding / properties / checked / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / commutes / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / notChecked / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

changedOutput schema / properties / understanding / properties / places / items / properties / force / enum

Previous value: -[
-  "must",
-  "should",
-  "nice"
-]New value: +[
+  "dealbreaker",
+  "must",
+  "should",
+  "nice"
+]

Changed1 schema field changedOct 1, 2026

addedOutput schema / properties / listings / items / properties / unknown

Added value: +{
+  "description": "Why each missingFields entry is unknown. not_in_search_result means get_listing may know it.",
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "field": {
+        "type": "string"
+      },
+      "reason": {
+        "enum": [
+          "not_stated",
+          "not_proven",
+          "conflicted",
+          "not_in_search_result"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "field",
+      "reason"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Changed4 schema fields changedSep 28, 2026

removedOutput schema / properties / coverageNotice

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "reason": {
-      "const": "outside_luxembourg",
-      "type": "string"
-    }
-  },
-  "required": [
-    "reason"
-  ],
-  "type": "object"
-}

addedOutput schema / properties / followUp

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "outcome": {
+      "enum": [
+        "applied",
+        "answered"
+      ],
+      "type": "string"
+    },
+    "reply": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "outcome"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / session

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "brief": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    }
+  },
+  "required": [
+    "brief"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / understanding

Added value: +{
+  "additionalProperties": false,
+  "description": "What the engine understood from the request. notChecked lists wishes no returned home is confirmed to have.",
+  "properties": {
+    "checked": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "force": {
+            "enum": [
+              "must",
+              "should",
+              "nice"
+            ],
+            "type": "string"
+          },
+          "meaning": {
+            "type": "string"
+          },
+          "needId": {
+            "type": "string"
+          },
+          "operator": {
+            "type": "string"
+          },
+          "unit": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "value": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ]
+          }
+        },
+        "required": [
+          "meaning",
+          "needId",
+          "operator",
+          "value",
+          "unit",
+          "force"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "commutes": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "destination": {
+            "type": "string"
+          },
+          "force": {
+            "enum": [
+              "must",
+              "should",
+              "nice"
+            ],
+            "type": "string"
+          },
+          "maxMinutes": {
+            "anyOf": [
+              {
+                "type": "number"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "mode": {
+            "anyOf": [
+              {
+                "enum": [
+                  "transit",
+                  "drive",
+                  "walk",
+                  "bike"
+                ],
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          }
+        },
+        "required": [
+          "destination",
+          "mode",
+          "maxMinutes",
+          "force"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "excludedPropertyTypes": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "notChecked": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "force": {
+            "enum": [
+              "must",
+              "should",
+              "nice"
+            ],
+            "type": "string"
+          },
+          "meaning": {
+            "type": "string"
+          },
+          "reason": {
+            "enum": [
+              "no_listing_fact",
+              "fact_not_collected_yet"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "meaning",
+          "force",
+          "reason"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "offer": {
+      "enum": [
+        "whole",
+        "room",
+        "either"
+      ],
+      "type": "string"
+    },
+    "places": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "country": {
+            "anyOf": [
+              {
+                "enum": [
+                  "LU",
+                  "FR",
+                  "BE",
+                  "DE"
+                ],
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "force": {
+            "enum": [
+              "must",
+              "should",
+              "nice"
+            ],
+            "type": "string"
+          },
+          "kind": {
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "radiusKm": {
+            "anyOf": [
+              {
+                "type": "number"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "role": {
+            "enum": [
+              "live",
+              "work",
+              "near",
+              "avoid"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "role",
+          "kind",
+          "country",
+          "radiusKm",
+          "force"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "propertyTypes": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "transaction": {
+      "anyOf": [
+        {
+          "enum": [
+            "buy",
+            "rent"
+          ],
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "understood": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "understood",
+    "transaction",
+    "propertyTypes",
+    "excludedPropertyTypes",
+    "offer",
+    "places",
+    "commutes",
+    "checked",
+    "notChecked"
+  ],
+  "type": "object"
+}

Changed2 schema fields changedSep 12, 2026

changedInput schema / properties / maxPrice / description

Previous value: -"Maximum monthly rent in EUR"New value: +"Maximum advertised base monthly rent in EUR, excluding separate charges"

addedInput schema / properties / maxTotalMonthly

Added value: +{
+  "description": "Strict maximum confirmed monthly obligation in EUR: advertised rent plus source-confirmed required recurring charges and fees. Listings with missing, estimated, conflicting, or stale cost evidence are excluded.",
+  "type": "number"
+}

Changed34 schema fields changedAug 31, 2026

addedInput schema / properties / balcony

Added value: +{
+  "const": true,
+  "description": "Require a source-confirmed balcony",
+  "type": "boolean"
+}

addedInput schema / properties / elevator

Added value: +{
+  "const": true,
+  "description": "Require positive source evidence of a lift/elevator",
+  "type": "boolean"
+}

addedInput schema / properties / furnished

Added value: +{
+  "const": true,
+  "description": "Require positive source evidence that the rental is furnished",
+  "type": "boolean"
+}

addedInput schema / properties / garden

Added value: +{
+  "const": true,
+  "description": "Require a source-confirmed garden",
+  "type": "boolean"
+}

addedInput schema / properties / maxAreaSqm

Added value: +{
+  "description": "Maximum area in m²",
+  "type": "number"
+}

addedInput schema / properties / minBathrooms

Added value: +{
+  "description": "Minimum number of bathrooms",
+  "type": "number"
+}

addedInput schema / properties / parkingType

Added value: +{
+  "description": "Require source-backed parking evidence",
+  "enum": [
+    "off_street",
+    "garage",
+    "covered"
+  ],
+  "type": "string"
+}

addedInput schema / properties / petsAllowed

Added value: +{
+  "const": true,
+  "description": "Require positive source evidence that pets are allowed",
+  "type": "boolean"
+}

addedInput schema / properties / sort

Added value: +{
+  "description": "Sort the proven result set. price-asc means base rent, not all-in monthly cost.",
+  "enum": [
+    "relevance",
+    "newest",
+    "price-asc",
+    "price-desc"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / excludedUnprovenCount

Added value: +{
+  "description": "Upstream rows omitted because public facts could not prove every requested hard filter.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

addedOutput schema / properties / hasMore
```
Added value: +{
+  "type": "boolean"
+}
```

addedOutput schema / properties / listings / items / properties / amenities

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "balcony": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "elevator": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "furnished": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "garden": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "parking": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "petsAllowed": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "stepFreeAccess": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "wheelchairAccessible": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "furnished",
+    "elevator",
+    "parking",
+    "balcony",
+    "garden",
+    "petsAllowed",
+    "stepFreeAccess",
+    "wheelchairAccessible"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / availability

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "availableFrom": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "moveInState": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "offerStatus": {
+      "enum": [
+        "available",
+        "under_offer",
+        "unknown"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "offerStatus",
+    "availableFrom",
+    "moveInState"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / duplicates

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "confirmedOtherSources": {
+      "maximum": 9007199254740991,
+      "minimum": 0,
+      "type": "integer"
+    },
+    "confirmedSourceCount": {
+      "exclusiveMinimum": 0,
+      "maximum": 9007199254740991,
+      "type": "integer"
+    }
+  },
+  "required": [
+    "confirmedOtherSources",
+    "confirmedSourceCount"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / fieldProvenance

Added value: +{
+  "additionalProperties": {
+    "additionalProperties": false,
+    "properties": {
+      "method": {
+        "enum": [
+          "source_structured",
+          "source_text",
+          "official_dataset",
+          "calculation",
+          "manual_review",
+          "model_extraction",
+          "model_only",
+          "unknown"
+        ],
+        "type": "string"
+      },
+      "observedAt": {
+        "anyOf": [
+          {
+            "format": "date-time",
+            "pattern": "^(?:(?:\\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])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "publisher": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "sourceUrl": {
+        "anyOf": [
+          {
+            "format": "uri",
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "status": {
+        "enum": [
+          "confirmed",
+          "estimated",
+          "thin_sample",
+          "stale",
+          "context_only",
+          "conflicted",
+          "not_collected",
+          "source_unavailable",
+          "suppressed"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "status",
+      "publisher",
+      "method",
+      "sourceUrl",
+      "observedAt"
+    ],
+    "type": "object"
+  },
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / history

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "daysListed": {
+      "anyOf": [
+        {
+          "maximum": 9007199254740991,
+          "minimum": 0,
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "firstObservedAt": {
+      "anyOf": [
+        {
+          "format": "date-time",
+          "pattern": "^(?:(?:\\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])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "firstObservedBasis": {
+      "const": "source_listing_date_or_chathome_ingest",
+      "type": "string"
+    },
+    "lastChangedAt": {
+      "anyOf": [
+        {
+          "format": "date-time",
+          "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "priceDropTotalEur": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "firstObservedAt",
+    "firstObservedBasis",
+    "daysListed",
+    "priceDropTotalEur",
+    "lastChangedAt"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / location

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "address": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "city": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "confidence": {
+      "enum": [
+        "verified",
+        "unverified",
+        "contradicted",
+        "unknown"
+      ],
+      "type": "string"
+    },
+    "district": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "postalCode": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "precision": {
+      "enum": [
+        "exact_address",
+        "street",
+        "district",
+        "commune_only",
+        "unknown"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "city",
+    "district",
+    "address",
+    "postalCode",
+    "precision",
+    "confidence"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / match

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "allRequiredConstraintsSatisfied": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "reasons": {
+      "items": {
+        "type": "string"
+      },
+      "maxItems": 3,
+      "type": "array"
+    },
+    "requiredConstraints": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "actual": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "number"
+              },
+              {
+                "type": "boolean"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "id": {
+            "type": "string"
+          },
+          "status": {
+            "enum": [
+              "matched",
+              "not_matched",
+              "not_verified",
+              "not_applied"
+            ],
+            "type": "string"
+          },
+          "target": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "number"
+              },
+              {
+                "type": "boolean"
+              },
+              {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "status",
+          "target",
+          "actual"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "resultKind": {
+      "anyOf": [
+        {
+          "enum": [
+            "strict_match",
+            "partial_match",
+            "relaxed_alternative"
+          ],
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "allRequiredConstraintsSatisfied",
+    "resultKind",
+    "requiredConstraints",
+    "reasons"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / missingFields

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

addedOutput schema / properties / listings / items / properties / officialScreening

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / property

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "airConditioning": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "colocation": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "completionYear": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "condition": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "constructionYear": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "floor": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "hasFloorplan": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "heatingEnergy": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "heatingType": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "landAreaSqm": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "privateRoomAreaSqm": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "rentByOwner": {
+      "anyOf": [
+        {
+          "const": true,
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "rooms": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "totalFloors": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "rooms",
+    "floor",
+    "totalFloors",
+    "constructionYear",
+    "completionYear",
+    "landAreaSqm",
+    "privateRoomAreaSqm",
+    "condition",
+    "heatingType",
+    "heatingEnergy",
+    "airConditioning",
+    "hasFloorplan",
+    "rentByOwner",
+    "colocation"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / listings / items / properties / propertyChecks

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / rent

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "agencyFee": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "agencyFeeBasis": {
+          "anyOf": [
+            {
+              "enum": [
+                "tenant_share",
+                "total_commission",
+                "unknown"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "baseMonthly": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "chargesIncluded": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "chargesMonthly": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "deposit": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "depositExceedsMaximum": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "depositMaximum": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "estimatedMonthlyTotal": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "estimatedMonthlyTotalIsLowerBound": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "estimatedUtilitiesMonthly": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "exactUpfrontCost": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "firstChargeAdvance": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "heatingMayBeDoubleCounted": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "indicativeInsuranceMonthly": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "knownMonthlyLowerBound": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "knownUpfrontCost": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "mandatoryMoveInFeeTotal": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "mandatoryMoveInFees": {
+          "items": {
+            "additionalProperties": {},
+            "properties": {},
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "mandatoryRecurringFeeTotal": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "mandatoryRecurringFees": {
+          "items": {
+            "additionalProperties": {},
+            "properties": {},
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "monthlyTotal": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "monthlyTotalStatus": {
+          "anyOf": [
+            {
+              "enum": [
+                "known",
+                "unknown_charges",
+                "conflicting_charges",
+                "invalid_price",
+                "unknown_mandatory_recurring_fees"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "reportedDeposit": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "unknownComponents": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "upfrontCostIsExact": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "upfrontCostIsLowerBound": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "baseMonthly",
+        "chargesMonthly",
+        "chargesIncluded",
+        "monthlyTotal",
+        "monthlyTotalStatus",
+        "knownMonthlyLowerBound",
+        "estimatedMonthlyTotal",
+        "estimatedMonthlyTotalIsLowerBound",
+        "estimatedUtilitiesMonthly",
+        "indicativeInsuranceMonthly",
+        "heatingMayBeDoubleCounted",
+        "firstChargeAdvance",
+        "reportedDeposit",
+        "deposit",
+        "depositMaximum",
+        "depositExceedsMaximum",
+        "agencyFee",
+        "agencyFeeBasis",
+        "mandatoryRecurringFees",
+        "mandatoryRecurringFeeTotal",
+        "mandatoryMoveInFees",
+        "mandatoryMoveInFeeTotal",
+        "knownUpfrontCost",
+        "exactUpfrontCost",
+        "upfrontCostIsLowerBound",
+        "upfrontCostIsExact",
+        "unknownComponents"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / schemaVersion
```
Added value: +{
+  "const": "agent-listing.v2",
+  "type": "string"
+}
```

addedOutput schema / properties / listings / items / properties / source

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "agencyConfirmedAt": {
+          "anyOf": [
+            {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\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])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "agencyListingId": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "agencyName": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "lastSeenAt": {
+          "anyOf": [
+            {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "listingUrl": {
+          "format": "uri",
+          "type": "string"
+        },
+        "status": {
+          "enum": [
+            "active",
+            "under_offer",
+            "unknown"
+          ],
+          "type": "string"
+        },
+        "statusBasis": {
+          "enum": [
+            "source_catalog_seen",
+            "listing_record_active"
+          ],
+          "type": "string"
+        },
+        "type": {
+          "const": "original_agency_listing",
+          "type": "string"
+        }
+      },
+      "required": [
+        "type",
+        "agencyName",
+        "listingUrl",
+        "agencyListingId",
+        "lastSeenAt",
+        "status",
+        "statusBasis",
+        "agencyConfirmedAt"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / transport

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / valueContext

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "fairPrice": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "marketContext": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "priceIntegrity": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "priceIntegrity",
+    "fairPrice",
+    "marketContext"
+  ],
+  "type": "object"
+}

changedOutput schema / properties / listings / items / required

Previous value: -[
-  "id",
-  "url",
-  "title",
-  "status",
-  "price",
-  "currency",
-  "listingType",
-  "propertyType",
-  "city",
-  "district",
-  "country",
-  "beds",
-  "baths",
-  "areaSqm",
-  "energyClass",
-  "imageUrl",
-  "agencyName",
-  "latitude",
-  "longitude"
-]New value: +[
+  "schemaVersion",
+  "id",
+  "url",
+  "title",
+  "status",
+  "price",
+  "currency",
+  "listingType",
+  "propertyType",
+  "city",
+  "district",
+  "country",
+  "beds",
+  "baths",
+  "areaSqm",
+  "energyClass",
+  "imageUrl",
+  "agencyName",
+  "source",
+  "rent",
+  "availability",
+  "property",
+  "location",
+  "history",
+  "duplicates",
+  "amenities",
+  "fieldProvenance",
+  "officialScreening",
+  "propertyChecks",
+  "transport",
+  "valueContext",
+  "missingFields",
+  "match",
+  "latitude",
+  "longitude"
+]

addedOutput schema / properties / marketMatchingUpperBound

Added value: +{
+  "anyOf": [
+    {
+      "maximum": 9007199254740991,
+      "minimum": 0,
+      "type": "integer"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / matchingCount

Added value: +{
+  "anyOf": [
+    {
+      "maximum": 9007199254740991,
+      "minimum": 0,
+      "type": "integer"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / matchingCountKind

Added value: +{
+  "enum": [
+    "exact",
+    "lower_bound",
+    "unavailable"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / nextCursor
```
Added value: +{
+  "type": "null"
+}
```

addedOutput schema / properties / returnedCount

Added value: +{
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

addedOutput schema / properties / searchExhaustive
```
Added value: +{
+  "type": "boolean"
+}
```

Changed34 schema fields changedAug 30, 2026

addedOutput schema / properties / countKind

Added value: +{
+  "const": "returned",
+  "type": "string"
+}

addedOutput schema / properties / listings / items / properties / agencyName

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

addedOutput schema / properties / listings / items / properties / areaSqm

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

addedOutput schema / properties / listings / items / properties / baths

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

addedOutput schema / properties / listings / items / properties / beds

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

addedOutput schema / properties / listings / items / properties / charges

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

addedOutput schema / properties / listings / items / properties / city

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

addedOutput schema / properties / listings / items / properties / country

Added value: +{
+  "anyOf": [
+    {
+      "enum": [
+        "LU",
+        "FR",
+        "BE",
+        "DE"
+      ],
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / listings / items / properties / currency
```
Added value: +{
+  "const": "EUR",
+  "type": "string"
+}
```

addedOutput schema / properties / listings / items / properties / description

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

addedOutput schema / properties / listings / items / properties / district

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

addedOutput schema / properties / listings / items / properties / energyClass

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

addedOutput schema / properties / listings / items / properties / features

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

addedOutput schema / properties / listings / items / properties / hasSourceCheckedFacts
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / listings / items / properties / id
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / listings / items / properties / imageUrl

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

addedOutput schema / properties / listings / items / properties / latitude

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

addedOutput schema / properties / listings / items / properties / listingType

Added value: +{
+  "enum": [
+    "rent",
+    "sale"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / listings / items / properties / longitude

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

addedOutput schema / properties / listings / items / properties / matchReasons

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 3,
+  "type": "array"
+}

addedOutput schema / properties / listings / items / properties / photoUrls

Added value: +{
+  "items": {
+    "format": "uri",
+    "type": "string"
+  },
+  "maxItems": 5,
+  "type": "array"
+}

addedOutput schema / properties / listings / items / properties / price

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

addedOutput schema / properties / listings / items / properties / pricePerSqm

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

addedOutput schema / properties / listings / items / properties / propertyType

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

addedOutput schema / properties / listings / items / properties / score

Added value: +{
+  "maximum": 100,
+  "minimum": 0,
+  "type": "number"
+}

addedOutput schema / properties / listings / items / properties / status
```
Added value: +{
+  "const": "active",
+  "type": "string"
+}
```
addedOutput schema / properties / listings / items / properties / title
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / listings / items / properties / url
```
Added value: +{
+  "format": "uri",
+  "type": "string"
+}
```

addedOutput schema / properties / listings / items / required

Added value: +[
+  "id",
+  "url",
+  "title",
+  "status",
+  "price",
+  "currency",
+  "listingType",
+  "propertyType",
+  "city",
+  "district",
+  "country",
+  "beds",
+  "baths",
+  "areaSqm",
+  "energyClass",
+  "imageUrl",
+  "agencyName",
+  "latitude",
+  "longitude"
+]

addedOutput schema / properties / ranking

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "planFingerprint": {
+      "type": "string"
+    },
+    "probability": {
+      "const": false,
+      "type": "boolean"
+    },
+    "scoreKind": {
+      "const": "request_fit",
+      "type": "string"
+    },
+    "status": {
+      "enum": [
+        "available",
+        "degraded"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "status",
+    "scoreKind",
+    "probability"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / total / description

Added value: +"Exact number of listing objects returned in this response; not the number of matches in the market."

addedOutput schema / properties / total / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / total / minimum
```
Added value: +0
```

changedOutput schema / properties / total / type

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

Changed1 schema field changedAug 29, 2026

addedOutput schema / properties / coverageNotice

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "reason": {
+      "const": "outside_luxembourg",
+      "type": "string"
+    }
+  },
+  "required": [
+    "reason"
+  ],
+  "type": "object"
+}

First observedAug 21, 2026

TDQS

A3.7/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Goes well beyond the readOnly/idempotent/openWorld annotations by disclosing that the strict ceiling drops listings with incomplete cost evidence, source freshness, or fees, and that results carry completeness metadata plus agency links and re-sighting timestamps. That is substantive behavioral context an agent could not infer from the annotations or schema, though return shape and pagination semantics remain unaddressed.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences, front-loaded with the searchable dimensions, followed by the two nontrivial behaviors. Dense but free of filler; 'positive-evidence amenities' and 'latest catalogue re-sighting time' are slightly opaque coinages but earn their space.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists so return values need not be explained, and the description correctly focuses on filter semantics and result completeness. The main shortfall is silent pagination - shownListingIds is a non-obvious paging mechanism for a 21-parameter search tool whose results are explicitly described as not a stable snapshot.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Effective schema description coverage is only 24% across 21 parameters, so the description should carry more. It does add the highest-value distinction - advertised base rent (minPrice/maxPrice) versus a separate strict confirmed monthly-obligation ceiling (maxTotalMonthly) - and clarifies that amenity flags are positive-evidence only, but sort, limit, locale, includePhotos, parkingType, and shownListingIds receive no mention.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (search) and resource (active Luxembourg rentals) with the filterable dimensions enumerated, which distinguishes it from search_for_sale by geography/asset class. It never names an actual sibling tool, so an agent must infer the boundary with search_vibe, get_listing, and compare_listings rather than being told.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The condition for using the strict ceiling versus the advertised base rent is implicit in the phrasing, and the exclusion behavior is described, but there is no explicit 'use this when...' or 'prefer X for Y' guidance. With 19 siblings covering overlapping territory (search_vibe, compare_listings, get_listing_truth), the absence of routing direction is a real gap.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All chathome.lu — Luxembourg Real Estate tools Inspect

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