chathome.lu — Luxembourg Real Estate

Get Listing Details

get_listing

Read-onlyIdempotent

Get the full fail-closed listing page: its public record, price history, area trend, family amenities, neighbourhood facts, property passport, parcel dossier, normalized costs, official checks, transport, provenance, unknown fields, URL, and photos.

Input Schema

TableJSON Schema

Name	Required	Description
`id`	Yes	Listing ID
`locale`	No	Response locale: en, fr, de, lu (Luxembourgish), pt (default: en; 'lb' is a deprecated alias for 'lu')
`includePhotos`	No	Attach thumbnail photos of the listing as image content blocks (default: true). Set false for a lean text-only response.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`trust`	Yes
`listing`	Yes
`listingPage`	Yes
`listingPageContext`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed20 schema fields changedAug 31, 2026

addedOutput schema / properties / listing / 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 / listing / 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 / listing / 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 / listing / 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 / listing / 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 / listing / 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 / listing / 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 / listing / properties / missingFields

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

addedOutput schema / properties / listing / properties / officialScreening

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

addedOutput schema / properties / listing / 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 / listing / properties / propertyChecks

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

addedOutput schema / properties / listing / 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 / listing / properties / schemaVersion

Added value: +{
+  "const": "agent-listing.v2",
+  "type": "string"
+}

addedOutput schema / properties / listing / 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 / listing / properties / transport

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

addedOutput schema / properties / listing / 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 / listing / 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 / listingPage

Added value: +{
+  "additionalProperties": {},
+  "properties": {},
+  "type": "object"
+}

addedOutput schema / properties / listingPageContext

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "commuteSummary": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "countryEvidence": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "familyAmenities": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "neighborhoodFacts": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "parcelDossier": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "passport": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "priceEvolution": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "priceHistory": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "propertyChecks": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "transitSummary": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "priceHistory",
+    "priceEvolution",
+    "familyAmenities",
+    "neighborhoodFacts",
+    "countryEvidence",
+    "transitSummary",
+    "commuteSummary",
+    "passport",
+    "propertyChecks",
+    "parcelDossier"
+  ],
+  "type": "object"
+}

changedOutput schema / required

Previous value: -[
-  "listing",
-  "trust"
-]New value: +[
+  "listing",
+  "listingPage",
+  "listingPageContext",
+  "trust"
+]

Changed28 schema fields changedAug 30, 2026

addedOutput schema / properties / listing / properties / agencyName

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

addedOutput schema / properties / listing / properties / areaSqm

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

addedOutput schema / properties / listing / properties / baths

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

addedOutput schema / properties / listing / properties / beds

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

addedOutput schema / properties / listing / properties / charges

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

addedOutput schema / properties / listing / properties / city

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

addedOutput schema / properties / listing / properties / country

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

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

addedOutput schema / properties / listing / properties / description

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

addedOutput schema / properties / listing / properties / district

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

addedOutput schema / properties / listing / properties / energyClass

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

addedOutput schema / properties / listing / properties / features

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

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

addedOutput schema / properties / listing / properties / imageUrl

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

addedOutput schema / properties / listing / properties / latitude

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

addedOutput schema / properties / listing / properties / listingType

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

addedOutput schema / properties / listing / properties / longitude

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

addedOutput schema / properties / listing / properties / matchReasons

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

addedOutput schema / properties / listing / properties / photoUrls

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

addedOutput schema / properties / listing / properties / price

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

addedOutput schema / properties / listing / properties / pricePerSqm

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

addedOutput schema / properties / listing / properties / propertyType

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

addedOutput schema / properties / listing / properties / score

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

addedOutput schema / properties / listing / properties / status

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

addedOutput schema / properties / listing / properties / title
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / listing / properties / url

Added value: +{
+  "format": "uri",
+  "type": "string"
+}

addedOutput schema / properties / listing / required

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

First observedAug 21, 2026

TDQS

A3.9/5.0

Behavior4/5

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

Annotations already cover read-only, idempotent, and non-destructive behavior. The description adds meaningful behavioral context with 'fail-closed', indicating the tool returns complete data or fails rather than partial results, and 'unknown fields', signaling unmapped/raw fields are surfaced. No contradiction with annotations.

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?

The description is front-loaded with the core behavior and then lists content areas, each of which earns its place. The long enumeration is dense but not padded with filler or repetition.

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 do not need to be described. The schema covers all parameters, and the description provides the high-level output scope and failure behavior. It is complete enough for an agent to invoke correctly.

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?

Schema coverage is 100%, and the schema already fully describes id, locale (including defaults and deprecated alias), and includePhotos. The description does not need to add parameter semantics beyond the schema.

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

Purpose5/5

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

The description uses the specific verb 'Get' with the clear object 'full fail-closed listing page' and enumerates the many data sections included. This establishes a distinct scope that separates it from narrower siblings like get_listing_truth or render_listing_cards.

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 word 'full' implies when the tool should be used, but there is no explicit guidance on when to prefer this tool over alternative siblings, nor any exclusion or conditional routing. The intended use is inferable, not stated.

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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