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Overwrite DNS Record

overwrite_dns_record

Destructive

Replace an existing DNS record with new values in Cloudflare, requiring explicit confirmation before the change is applied.

Instructions

Overwrite an existing DNS record.

Notes:

A/AAAA records cannot exist on the same name as CNAME records.
NS records cannot exist on the same name as any other record type.
Domain names are always represented in Punycode, even if Unicode characters were used when creating the record. Every change requires explicit confirmation; never repeat an unknown outcome automatically.

Input Schema

TableJSON Schema

Name	Required	Description
`account`	No	Exact private profile label. Account/zone defaults route inputs; token permissions remain provider controlled.
`confirm`	No	Set true only when the user asked for exactly this action.
`payload`	No	Complete current native JSON request body. Do not mix with payload_file.
`zone_id`	No
`payload_file`	No	Regular non-symlink local JSON request file, at most 1 MiB. No credentials in public files.
`dns_record_id`	Yes
`include_shadow_metadata`	No	Whether to include shadow metadata in the `meta` field of each record in the response. See [Shadowed records](https://developers.cloudflare.com/dns/manage-dns-records/reference/shadowed-records).

Schema Changelog

Changes observed during successful MCP inspections.

Changed129 schema fields changedv3.0.1Oct 5, 2026

changedInput schema / properties / confirm / description

Previous value: -"Must be true for the exact selected mutation, target and reviewed request."New value: +"Set true only when the user asked for exactly this action."

addedInput schema / properties / payload / $defs / dns-records_AAAARecord / $ref
```
Added value: +"#/$defs/dns-records_AAAARecord"
```

removedInput schema / properties / payload / $defs / dns-records_AAAARecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A valid IPv6 address.",
-        "format": "ipv6",
-        "type": "string"
-      },
-      "private_routing": {
-        "default": false,
-        "description": "Enables private network routing to the origin.",
-        "type": "boolean"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "AAAA"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_AAAARecord / title
```
Removed value: -"AAAA Record"
```
removedInput schema / properties / payload / $defs / dns-records_AAAARecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_ARecord / $ref
```
Added value: +"#/$defs/dns-records_ARecord"
```

removedInput schema / properties / payload / $defs / dns-records_ARecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A valid IPv4 address.",
-        "format": "ipv4",
-        "type": "string"
-      },
-      "private_routing": {
-        "default": false,
-        "description": "Enables private network routing to the origin.",
-        "type": "boolean"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "A"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_ARecord / title
```
Removed value: -"A Record"
```
removedInput schema / properties / payload / $defs / dns-records_ARecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_CAARecord / $ref
```
Added value: +"#/$defs/dns-records_CAARecord"
```

removedInput schema / properties / payload / $defs / dns-records_CAARecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted CAA content. See 'data' to set CAA properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a CAA record.",
-        "properties": {
-          "flags": {
-            "description": "Flags for the CAA record.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "tag": {
-            "description": "Name of the property controlled by this record (e.g.: issue, issuewild, iodef).",
-            "type": "string"
-          },
-          "value": {
-            "description": "Value of the record. This field's semantics depend on the chosen tag.",
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "CAA"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_CAARecord / title
```
Removed value: -"CAA Record"
```
removedInput schema / properties / payload / $defs / dns-records_CAARecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_CERTRecord / $ref
```
Added value: +"#/$defs/dns-records_CERTRecord"
```

removedInput schema / properties / payload / $defs / dns-records_CERTRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted CERT content. See 'data' to set CERT properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a CERT record.",
-        "properties": {
-          "algorithm": {
-            "description": "Algorithm.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "certificate": {
-            "description": "Certificate.",
-            "type": "string"
-          },
-          "key_tag": {
-            "description": "Key Tag.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "type": {
-            "description": "Type.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "CERT"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_CERTRecord / title
```
Removed value: -"CERT Record"
```
removedInput schema / properties / payload / $defs / dns-records_CERTRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_CNAMERecord / $ref
```
Added value: +"#/$defs/dns-records_CNAMERecord"
```

removedInput schema / properties / payload / $defs / dns-records_CNAMERecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A valid hostname. Must not match the record's name.",
-        "type": "string"
-      },
-      "settings": {
-        "properties": {
-          "flatten_cname": {
-            "default": false,
-            "description": "If enabled, causes the CNAME record to be resolved externally and the resulting address records (e.g., A and AAAA) to be returned instead of the CNAME record itself. This setting is unavailable for proxied records, since they are always flattened.",
-            "type": "boolean"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "CNAME"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_CNAMERecord / title
```
Removed value: -"CNAME Record"
```
removedInput schema / properties / payload / $defs / dns-records_CNAMERecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_DNSKEYRecord / $ref
```
Added value: +"#/$defs/dns-records_DNSKEYRecord"
```

removedInput schema / properties / payload / $defs / dns-records_DNSKEYRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted DNSKEY content. See 'data' to set DNSKEY properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a DNSKEY record.",
-        "properties": {
-          "algorithm": {
-            "description": "Algorithm.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "flags": {
-            "description": "Flags.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "protocol": {
-            "description": "Protocol.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "public_key": {
-            "description": "Public Key.",
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "DNSKEY"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_DNSKEYRecord / title
```
Removed value: -"DNSKEY Record"
```
removedInput schema / properties / payload / $defs / dns-records_DNSKEYRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_DSRecord / $ref
```
Added value: +"#/$defs/dns-records_DSRecord"
```

removedInput schema / properties / payload / $defs / dns-records_DSRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted DS content. See 'data' to set DS properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a DS record.",
-        "properties": {
-          "algorithm": {
-            "description": "Algorithm.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "digest": {
-            "description": "Digest.",
-            "type": "string"
-          },
-          "digest_type": {
-            "description": "Digest Type.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "key_tag": {
-            "description": "Key Tag.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "DS"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_DSRecord / title
```
Removed value: -"DS Record"
```
removedInput schema / properties / payload / $defs / dns-records_DSRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_HTTPSRecord / $ref
```
Added value: +"#/$defs/dns-records_HTTPSRecord"
```

removedInput schema / properties / payload / $defs / dns-records_HTTPSRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted HTTPS content. See 'data' to set HTTPS properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a HTTPS record.",
-        "properties": {
-          "priority": {
-            "description": "Priority.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "target": {
-            "description": "Target.",
-            "type": "string"
-          },
-          "value": {
-            "description": "Value.",
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "HTTPS"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_HTTPSRecord / title
```
Removed value: -"HTTPS Record"
```
removedInput schema / properties / payload / $defs / dns-records_HTTPSRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_LOCRecord / $ref
```
Added value: +"#/$defs/dns-records_LOCRecord"
```

removedInput schema / properties / payload / $defs / dns-records_LOCRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted LOC content. See 'data' to set LOC properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a LOC record.",
-        "properties": {
-          "altitude": {
-            "description": "Altitude of location in meters.",
-            "maximum": 42849672.95,
-            "minimum": -100000,
-            "type": "number"
-          },
-          "lat_degrees": {
-            "description": "Degrees of latitude.",
-            "maximum": 90,
-            "minimum": 0,
-            "type": "number"
-          },
-          "lat_direction": {
-            "description": "Latitude direction.",
-            "enum": [
-              "N",
-              "S"
-            ],
-            "type": "string"
-          },
-          "lat_minutes": {
-            "description": "Minutes of latitude.",
-            "maximum": 59,
-            "minimum": 0,
-            "type": "number"
-          },
-          "lat_seconds": {
-            "description": "Seconds of latitude.",
-            "maximum": 59.999,
-            "minimum": 0,
-            "type": "number"
-          },
-          "long_degrees": {
-            "description": "Degrees of longitude.",
-            "maximum": 180,
-            "minimum": 0,
-            "type": "number"
-          },
-          "long_direction": {
-            "description": "Longitude direction.",
-            "enum": [
-              "E",
-              "W"
-            ],
-            "type": "string"
-          },
-          "long_minutes": {
-            "description": "Minutes of longitude.",
-            "maximum": 59,
-            "minimum": 0,
-            "type": "number"
-          },
-          "long_seconds": {
-            "description": "Seconds of longitude.",
-            "maximum": 59.999,
-            "minimum": 0,
-            "type": "number"
-          },
-          "precision_horz": {
-            "description": "Horizontal precision of location.",
-            "maximum": 90000000,
-            "minimum": 0,
-            "type": "number"
-          },
-          "precision_vert": {
-            "description": "Vertical precision of location.",
-            "maximum": 90000000,
-            "minimum": 0,
-            "type": "number"
-          },
-          "size": {
-            "description": "Size of location in meters.",
-            "maximum": 90000000,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "LOC"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_LOCRecord / title
```
Removed value: -"LOC Record"
```
removedInput schema / properties / payload / $defs / dns-records_LOCRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_MXRecord / $ref
```
Added value: +"#/$defs/dns-records_MXRecord"
```

removedInput schema / properties / payload / $defs / dns-records_MXRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A valid mail server hostname.",
-        "format": "hostname",
-        "type": "string"
-      },
-      "priority": {
-        "$ref": "#/$defs/dns-records_priority"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "MX"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_MXRecord / title
```
Removed value: -"MX Record"
```
removedInput schema / properties / payload / $defs / dns-records_MXRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_NAPTRRecord / $ref
```
Added value: +"#/$defs/dns-records_NAPTRRecord"
```

removedInput schema / properties / payload / $defs / dns-records_NAPTRRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted NAPTR content. See 'data' to set NAPTR properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a NAPTR record.",
-        "properties": {
-          "flags": {
-            "description": "Flags.",
-            "type": "string"
-          },
-          "order": {
-            "description": "Order.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "preference": {
-            "description": "Preference.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "regex": {
-            "description": "Regex.",
-            "type": "string"
-          },
-          "replacement": {
-            "description": "Replacement.",
-            "type": "string"
-          },
-          "service": {
-            "description": "Service.",
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "NAPTR"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_NAPTRRecord / title
```
Removed value: -"NAPTR Record"
```
removedInput schema / properties / payload / $defs / dns-records_NAPTRRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_NSRecord / $ref
```
Added value: +"#/$defs/dns-records_NSRecord"
```

removedInput schema / properties / payload / $defs / dns-records_NSRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A valid name server host name.",
-        "type": "string"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "NS"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_NSRecord / title
```
Removed value: -"NS Record"
```
removedInput schema / properties / payload / $defs / dns-records_NSRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_OPENPGPKEYRecord / $ref
```
Added value: +"#/$defs/dns-records_OPENPGPKEYRecord"
```

removedInput schema / properties / payload / $defs / dns-records_OPENPGPKEYRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "A single Base64-encoded OpenPGP Transferable Public Key (RFC 4880 Section 11.1)",
-        "type": "string"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "OPENPGPKEY"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_OPENPGPKEYRecord / title
```
Removed value: -"OPENPGPKEY Record"
```
removedInput schema / properties / payload / $defs / dns-records_OPENPGPKEYRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_PTRRecord / $ref
```
Added value: +"#/$defs/dns-records_PTRRecord"
```

removedInput schema / properties / payload / $defs / dns-records_PTRRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Domain name pointing to the address.",
-        "type": "string"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "PTR"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_PTRRecord / title
```
Removed value: -"PTR Record"
```
removedInput schema / properties / payload / $defs / dns-records_PTRRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_SMIMEARecord / $ref
```
Added value: +"#/$defs/dns-records_SMIMEARecord"
```

removedInput schema / properties / payload / $defs / dns-records_SMIMEARecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted SMIMEA content. See 'data' to set SMIMEA properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a SMIMEA record.",
-        "properties": {
-          "certificate": {
-            "description": "Certificate.",
-            "type": "string"
-          },
-          "matching_type": {
-            "description": "Matching Type.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "selector": {
-            "description": "Selector.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "usage": {
-            "description": "Usage.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "SMIMEA"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_SMIMEARecord / title
```
Removed value: -"SMIMEA Record"
```
removedInput schema / properties / payload / $defs / dns-records_SMIMEARecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_SRVRecord / $ref
```
Added value: +"#/$defs/dns-records_SRVRecord"
```

removedInput schema / properties / payload / $defs / dns-records_SRVRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Priority, weight, port, and SRV target. See 'data' for setting the individual component values.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a SRV record.",
-        "properties": {
-          "port": {
-            "description": "The port of the service.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "priority": {
-            "$ref": "#/$defs/dns-records_priority"
-          },
-          "target": {
-            "description": "A valid hostname.",
-            "format": "hostname",
-            "type": "string"
-          },
-          "weight": {
-            "description": "The record weight.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "SRV"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_SRVRecord / title
```
Removed value: -"SRV Record"
```
removedInput schema / properties / payload / $defs / dns-records_SRVRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_SSHFPRecord / $ref
```
Added value: +"#/$defs/dns-records_SSHFPRecord"
```

removedInput schema / properties / payload / $defs / dns-records_SSHFPRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted SSHFP content. See 'data' to set SSHFP properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a SSHFP record.",
-        "properties": {
-          "algorithm": {
-            "description": "Algorithm.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "fingerprint": {
-            "description": "Fingerprint.",
-            "type": "string"
-          },
-          "type": {
-            "description": "Type.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "SSHFP"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_SSHFPRecord / title
```
Removed value: -"SSHFP Record"
```
removedInput schema / properties / payload / $defs / dns-records_SSHFPRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_SVCBRecord / $ref
```
Added value: +"#/$defs/dns-records_SVCBRecord"
```

removedInput schema / properties / payload / $defs / dns-records_SVCBRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted SVCB content. See 'data' to set SVCB properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a SVCB record.",
-        "properties": {
-          "priority": {
-            "description": "Priority.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          },
-          "target": {
-            "description": "Target.",
-            "type": "string"
-          },
-          "value": {
-            "description": "Value.",
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "SVCB"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_SVCBRecord / title
```
Removed value: -"SVCB Record"
```
removedInput schema / properties / payload / $defs / dns-records_SVCBRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_TLSARecord / $ref
```
Added value: +"#/$defs/dns-records_TLSARecord"
```

removedInput schema / properties / payload / $defs / dns-records_TLSARecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted TLSA content. See 'data' to set TLSA properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a TLSA record.",
-        "properties": {
-          "certificate": {
-            "description": "Certificate.",
-            "type": "string"
-          },
-          "matching_type": {
-            "description": "Matching Type.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "selector": {
-            "description": "Selector.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          },
-          "usage": {
-            "description": "Usage.",
-            "maximum": 255,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "TLSA"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_TLSARecord / title
```
Removed value: -"TLSA Record"
```
removedInput schema / properties / payload / $defs / dns-records_TLSARecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_TXTRecord / $ref
```
Added value: +"#/$defs/dns-records_TXTRecord"
```

removedInput schema / properties / payload / $defs / dns-records_TXTRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Text content for the record. The content must consist of quoted \"character strings\" (RFC 1035), each with a length of up to 255 bytes. Strings exceeding this allowed maximum length are automatically split.\n\nLearn more at <https://www.cloudflare.com/learning/dns/dns-records/dns-txt-record/>.",
-        "type": "string"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "TXT"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_TXTRecord / title
```
Removed value: -"TXT Record"
```
removedInput schema / properties / payload / $defs / dns-records_TXTRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_URIRecord / $ref
```
Added value: +"#/$defs/dns-records_URIRecord"
```

removedInput schema / properties / payload / $defs / dns-records_URIRecord / allOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_dns-record-shared-fields"
-  },
-  {
-    "properties": {
-      "content": {
-        "description": "Formatted URI content. See 'data' to set URI properties.",
-        "type": "string"
-      },
-      "data": {
-        "description": "Components of a URI record.",
-        "properties": {
-          "target": {
-            "description": "The record content.",
-            "type": "string"
-          },
-          "weight": {
-            "description": "The record weight.",
-            "maximum": 65535,
-            "minimum": 0,
-            "type": "number"
-          }
-        },
-        "type": "object"
-      },
-      "priority": {
-        "$ref": "#/$defs/dns-records_priority"
-      },
-      "type": {
-        "description": "Record type.",
-        "enum": [
-          "URI"
-        ],
-        "type": "string"
-      }
-    },
-    "type": "object"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_URIRecord / title
```
Removed value: -"URI Record"
```
removedInput schema / properties / payload / $defs / dns-records_URIRecord / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_comment / $ref
```
Added value: +"#/$defs/dns-records_comment"
```

removedInput schema / properties / payload / $defs / dns-records_comment / description

Removed value: -"Comments or notes about the DNS record. This field has no effect on DNS responses."

removedInput schema / properties / payload / $defs / dns-records_comment / type
```
Removed value: -"string"
```
addedInput schema / properties / payload / $defs / dns-records_dns-record-shared-fields / $ref
```
Added value: +"#/$defs/dns-records_dns-record-shared-fields"
```

removedInput schema / properties / payload / $defs / dns-records_dns-record-shared-fields / properties

Removed value: -{
-  "comment": {
-    "$ref": "#/$defs/dns-records_comment"
-  },
-  "name": {
-    "$ref": "#/$defs/dns-records_name"
-  },
-  "proxied": {
-    "$ref": "#/$defs/dns-records_proxied"
-  },
-  "settings": {
-    "$ref": "#/$defs/dns-records_settings"
-  },
-  "tags": {
-    "$ref": "#/$defs/dns-records_tags"
-  },
-  "ttl": {
-    "$ref": "#/$defs/dns-records_ttl"
-  }
-}

removedInput schema / properties / payload / $defs / dns-records_dns-record-shared-fields / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_dns-record-with-data / $ref
```
Added value: +"#/$defs/dns-records_dns-record-with-data"
```

removedInput schema / properties / payload / $defs / dns-records_dns-record-with-data / oneOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_CAARecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_CERTRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_DNSKEYRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_DSRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_HTTPSRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_LOCRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_NAPTRRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_SMIMEARecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_SRVRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_SSHFPRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_SVCBRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_TLSARecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_URIRecord"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_dns-record-with-data / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_dns-record-without-data / $ref
```
Added value: +"#/$defs/dns-records_dns-record-without-data"
```

removedInput schema / properties / payload / $defs / dns-records_dns-record-without-data / oneOf

Removed value: -[
-  {
-    "$ref": "#/$defs/dns-records_ARecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_AAAARecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_CNAMERecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_MXRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_NSRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_OPENPGPKEYRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_PTRRecord"
-  },
-  {
-    "$ref": "#/$defs/dns-records_TXTRecord"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_dns-record-without-data / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_identifier / $ref
```
Added value: +"#/$defs/dns-records_identifier"
```
removedInput schema / properties / payload / $defs / dns-records_identifier / description
```
Removed value: -"Identifier."
```
removedInput schema / properties / payload / $defs / dns-records_identifier / maxLength
```
Removed value: -32
```
removedInput schema / properties / payload / $defs / dns-records_identifier / type
```
Removed value: -"string"
```
addedInput schema / properties / payload / $defs / dns-records_name / $ref
```
Added value: +"#/$defs/dns-records_name"
```

removedInput schema / properties / payload / $defs / dns-records_name / description

Removed value: -"Complete DNS record name, including the zone name, in Punycode."

removedInput schema / properties / payload / $defs / dns-records_name / maxLength
```
Removed value: -255
```
removedInput schema / properties / payload / $defs / dns-records_name / minLength
```
Removed value: -1
```
removedInput schema / properties / payload / $defs / dns-records_name / type
```
Removed value: -"string"
```
addedInput schema / properties / payload / $defs / dns-records_priority / $ref
```
Added value: +"#/$defs/dns-records_priority"
```

removedInput schema / properties / payload / $defs / dns-records_priority / description

Removed value: -"Required for MX and URI records; ignored for other record types (but may still be returned by the API). Records with lower priorities are preferred. This field is to be deprecated in favor of the priority field within the data map."

removedInput schema / properties / payload / $defs / dns-records_priority / maximum
```
Removed value: -65535
```
removedInput schema / properties / payload / $defs / dns-records_priority / minimum
```
Removed value: -0
```
removedInput schema / properties / payload / $defs / dns-records_priority / type
```
Removed value: -"number"
```
addedInput schema / properties / payload / $defs / dns-records_proxied / $ref
```
Added value: +"#/$defs/dns-records_proxied"
```
removedInput schema / properties / payload / $defs / dns-records_proxied / default
```
Removed value: -false
```

removedInput schema / properties / payload / $defs / dns-records_proxied / description

Removed value: -"Whether the record is receiving the performance and security benefits of Cloudflare."

removedInput schema / properties / payload / $defs / dns-records_proxied / type
```
Removed value: -"boolean"
```
addedInput schema / properties / payload / $defs / dns-records_settings / $ref
```
Added value: +"#/$defs/dns-records_settings"
```
removedInput schema / properties / payload / $defs / dns-records_settings / description
```
Removed value: -"Settings for the DNS record."
```

removedInput schema / properties / payload / $defs / dns-records_settings / properties

Removed value: -{
-  "ipv4_only": {
-    "default": false,
-    "description": "When enabled, only A records will be generated, and AAAA records will not be created. This setting is intended for exceptional cases. Note that this option only applies to proxied records and it has no effect on whether Cloudflare communicates with the origin using IPv4 or IPv6.",
-    "type": "boolean"
-  },
-  "ipv6_only": {
-    "default": false,
-    "description": "When enabled, only AAAA records will be generated, and A records will not be created. This setting is intended for exceptional cases. Note that this option only applies to proxied records and it has no effect on whether Cloudflare communicates with the origin using IPv4 or IPv6.",
-    "type": "boolean"
-  }
-}

removedInput schema / properties / payload / $defs / dns-records_settings / type
```
Removed value: -"object"
```
addedInput schema / properties / payload / $defs / dns-records_tags / $ref
```
Added value: +"#/$defs/dns-records_tags"
```
removedInput schema / properties / payload / $defs / dns-records_tags / default
```
Removed value: -[]
```

removedInput schema / properties / payload / $defs / dns-records_tags / description

Removed value: -"Custom tags for the DNS record. This field has no effect on DNS responses."

removedInput schema / properties / payload / $defs / dns-records_tags / items

Removed value: -{
-  "description": "Individual tag of the form name:value (the name must consist of only letters, numbers, underscores and hyphens)",
-  "type": "string"
-}

removedInput schema / properties / payload / $defs / dns-records_tags / type
```
Removed value: -"array"
```
addedInput schema / properties / payload / $defs / dns-records_ttl / $ref
```
Added value: +"#/$defs/dns-records_ttl"
```

removedInput schema / properties / payload / $defs / dns-records_ttl / anyOf

Removed value: -[
-  {
-    "maximum": 86400,
-    "minimum": 30,
-    "type": "number"
-  },
-  {
-    "enum": [
-      1
-    ],
-    "type": "number"
-  }
-]

removedInput schema / properties / payload / $defs / dns-records_ttl / default
```
Removed value: -1
```

removedInput schema / properties / payload / $defs / dns-records_ttl / description

Removed value: -"Time To Live (TTL) of the DNS record in seconds. Setting to 1 means 'automatic'. Value must be between 60 and 86400, with the minimum reduced to 30 for Enterprise zones."

removedInput schema / properties / payload / $defs / dns-records_ttl / type
```
Removed value: -"number"
```

First observedv2.0.0Oct 3, 2026

TDQS

A3.6/5.0

Behavior4/5

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

Annotations already declare destructive=true, idempotent=false, openWorld=true, so the safety profile is partly covered. The description still adds real behavioral value: the record-type exclusivity constraints, Punycode normalization of names, the explicit-confirmation requirement, and the 'never repeat an unknown outcome automatically' rule. It stops short of stating whether the overwrite is a full replacement of all existing fields or a merge.

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?

Purpose is front-loaded in a single sentence, followed by tightly scoped bullet notes and one safety sentence. Every line carries information; the confirmation sentence is slightly tangential to the purpose statement but still earns its place.

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

Completeness3/5

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

For a destructive, 7-parameter tool with deeply nested payload variants and no output schema, the description covers constraints and confirmation but omits the overwrite-vs-update distinction, the two payload transport options (payload vs. payload_file), and any note on failure/rollback behavior. Adequate but incomplete for the tool's complexity.

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 71%, so the schema documents much of the nested payload. The description adds one useful semantic (names are always Punycode even when created from Unicode) but says nothing about how confirm, account, payload vs. payload_file, or zone_id should be used, so it only marginally extends the schema.

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?

The opening sentence gives a specific verb (overwrite) and resource (existing DNS record), so the core action is unambiguous. It does not, however, distinguish itself from the sibling tools update_dns_record, create_dns_record, or delete_dns_record, which matters here because 'overwrite' vs 'update' semantics differ materially.

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 notes imply usage conditions by flagging conflicts (A/AAAA vs CNAME, NS exclusivity) that constrain when an overwrite is valid, and the closing sentence signals that confirmation is needed. But there is no explicit when-to-use-this-vs-update_dns_record guidance, leaving the key routing decision to inference.

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

Overwrite DNS Record

Instructions

Input Schema

Schema Changelog

TDQS

Other Tools