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Blackwood State

by io.github.Blackwood-State
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Domain intelligence

blackwood_domain_intel
Read-onlyIdempotent

Use when you need a domain lookup, whois, dns records or certificate transparency data for osint, security or due diligence. Do not use for historical whois, registrant personal data (redacted by registries) or port and vulnerability scans. Returns JSON with domain intelligence: WHOIS/RDAP registration, DNS records (A, AAAA, MX, NS, TXT, CAA), SPF and DMARC, and TLS certificates from certificate transparency logs for 0.02 USDC per call. Typical response time 4000 ms (p95). Category: Data.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "domain": "<domain>"
    },
    "name": "blackwood_domain_intel"
  }
}

Input Schema

NameRequiredDescriptionDefault
domainYesDomain name in ASCII (punycode for internationalized names), e.g. example.com
certificatesNoInclude issued TLS certificates from Certificate Transparency (crt.sh); true when omitted
response_formatNoconcise (the default when omitted) keeps the JSON short: long fields such as base64 images or audio come back as separate image/audio content blocks and other long strings are cut with a marker; detailed returns the full JSON

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "certificates": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "recent": {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "commonName": {
-                      "type": "string"
-                    },
-                    "issuer": {
-                      "type": "string"
-                    },
-                    "notAfter": {
-                      "type": "string"
-                    },
-                    "notBefore": {
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "issuer",
-                    "commonName",
-                    "notBefore",
-                    "notAfter"
-                  ],
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              "total": {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              }
-            },
-            "required": [
-              "total",
-              "recent"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "dns": {
-        "additionalProperties": false,
-        "properties": {
-          "a": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "aaaa": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "caa": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "mx": {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "host": {
-                  "type": "string"
-                },
-                "priority": {
-                  "maximum": 9007199254740991,
-                  "minimum": -9007199254740991,
-                  "type": "integer"
-                }
-              },
-              "required": [
-                "priority",
-                "host"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "ns": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "txt": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          }
-        },
-        "required": [
-          "a",
-          "aaaa",
-          "mx",
-          "ns",
-          "txt",
-          "caa"
-        ],
-        "type": "object"
-      },
-      "domain": {
-        "type": "string"
-      },
-      "email": {
-        "additionalProperties": false,
-        "properties": {
-          "dmarc": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "dmarcPolicy": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "spf": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "spf",
-          "dmarc",
-          "dmarcPolicy"
-        ],
-        "type": "object"
-      },
-      "partial": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "registered": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      },
-      "registration": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "created": {
-                "type": [
-                  "string",
-                  "null"
-                ]
-              },
-              "dnssec": {
-                "type": [
-                  "boolean",
-                  "null"
-                ]
-              },
-              "expires": {
-                "type": [
-                  "string",
-                  "null"
-                ]
-              },
-              "nameservers": {
-                "items": {
-                  "type": "string"
-                },
-                "type": "array"
-              },
-              "rdapServer": {
-                "type": [
-                  "string",
-                  "null"
-                ]
-              },
-              "registrar": {
-                "type": [
-                  "string",
-                  "null"
-                ]
-              },
-              "status": {
-                "items": {
-                  "type": "string"
-                },
-                "type": "array"
-              },
-              "updated": {
-                "type": [
-                  "string",
-                  "null"
-                ]
-              }
-            },
-            "required": [
-              "registrar",
-              "created",
-              "updated",
-              "expires",
-              "status",
-              "nameservers",
-              "dnssec",
-              "rdapServer"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "domain",
-      "registered",
-      "registration",
-      "dns",
-      "email",
-      "certificates",
-      "partial"
-    ],
-    "type": "object"
-  },
-  {
-    "description": "x402 PaymentRequired (returned with isError when payment is needed)",
-    "properties": {
-      "accepts": {
-        "items": {
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "error": {
-        "type": "string"
-      },
-      "extensions": {
-        "type": "object"
-      },
-      "resource": {
-        "type": "object"
-      },
-      "x402Version": {
-        "type": "integer"
-      }
-    },
-    "required": [
-      "x402Version",
-      "accepts"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "certificates": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "recent": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "commonName": {
+                      "type": "string"
+                    },
+                    "issuer": {
+                      "type": "string"
+                    },
+                    "notAfter": {
+                      "type": "string"
+                    },
+                    "notBefore": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "issuer",
+                    "commonName",
+                    "notBefore",
+                    "notAfter"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "total": {
+                "maximum": 9007199254740991,
+                "minimum": -9007199254740991,
+                "type": "integer"
+              }
+            },
+            "required": [
+              "total",
+              "recent"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "dns": {
+        "additionalProperties": false,
+        "properties": {
+          "a": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "aaaa": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "caa": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "mx": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "host": {
+                  "type": "string"
+                },
+                "priority": {
+                  "maximum": 9007199254740991,
+                  "minimum": -9007199254740991,
+                  "type": "integer"
+                }
+              },
+              "required": [
+                "priority",
+                "host"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "ns": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "txt": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "a",
+          "aaaa",
+          "mx",
+          "ns",
+          "txt",
+          "caa"
+        ],
+        "type": "object"
+      },
+      "domain": {
+        "type": "string"
+      },
+      "email": {
+        "additionalProperties": false,
+        "properties": {
+          "dmarc": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "dmarcPolicy": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "spf": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "spf",
+          "dmarc",
+          "dmarcPolicy"
+        ],
+        "type": "object"
+      },
+      "next": {
+        "additionalProperties": false,
+        "description": "Suggested next paid call in the same family (call it in a loop when the task continues)",
+        "properties": {
+          "method": {
+            "enum": [
+              "GET",
+              "POST"
+            ],
+            "type": "string"
+          },
+          "sample": {
+            "description": "Free fixed sample of the whole family",
+            "type": "string"
+          },
+          "service": {
+            "description": "Service id of the suggested next paid call",
+            "type": "string"
+          },
+          "tool": {
+            "description": "MCP tool name of the same call",
+            "type": "string"
+          },
+          "url": {
+            "description": "Paid route of the next call",
+            "type": "string"
+          },
+          "useWhen": {
+            "description": "When the next call is the right one",
+            "type": "string"
+          }
+        },
+        "required": [
+          "service",
+          "tool",
+          "method",
+          "url",
+          "useWhen",
+          "sample"
+        ],
+        "type": "object"
+      },
+      "partial": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "registered": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "registration": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "created": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "dnssec": {
+                "type": [
+                  "boolean",
+                  "null"
+                ]
+              },
+              "expires": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "nameservers": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "rdapServer": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "registrar": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "status": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "updated": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              }
+            },
+            "required": [
+              "registrar",
+              "created",
+              "updated",
+              "expires",
+              "status",
+              "nameservers",
+              "dnssec",
+              "rdapServer"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "domain",
+      "registered",
+      "registration",
+      "dns",
+      "email",
+      "certificates",
+      "partial"
+    ],
+    "type": "object"
+  },
+  {
+    "description": "x402 PaymentRequired (returned with isError when payment is needed)",
+    "properties": {
+      "accepts": {
+        "items": {
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "error": {
+        "type": "string"
+      },
+      "extensions": {
+        "type": "object"
+      },
+      "resource": {
+        "type": "object"
+      },
+      "x402Version": {
+        "type": "integer"
+      }
+    },
+    "required": [
+      "x402Version",
+      "accepts"
+    ],
+    "type": "object"
+  }
+]
  2. Added

TDQS

A4.6/5.0
Behavior5/5

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

Annotations already cover safety (readOnly, idempotent, non-destructive, openWorld), and the description goes further with cost (0.02 USDC per call), p95 latency (4000 ms), and the registry-level redaction limitation. These are operational facts the agent cannot get from the structured fields.

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?

Front-loaded with the 'Use when' clause and kept to three tight sentences; the trailing 'Category: Data' is filler. Dense but every substantive sentence earns its place.

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

Completeness5/5

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

For a read-only lookup with a full output schema, the description supplies the remaining decision-relevant context: scope, exclusions, cost, latency, and output shape. Nothing needed to call it correctly is missing.

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 description coverage is 100%, so the schema already documents 'domain', 'certificates' (default true) and 'response_format' (concise vs detailed, with truncation behavior). The description's mention of certificate transparency data loosely maps to the 'certificates' parameter but adds no syntax or default nuance beyond the schema, so the baseline 3 applies.

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?

States a specific verb and resource set ('domain lookup, whois, dns records or certificate transparency data') and enumerates exactly what is returned (WHOIS/RDAP, A/AAAA/MX/NS/TXT/CAA, SPF/DMARC, TLS certs). This is clearly distinguishable from the nearest siblings (blackwood_ens_lookup, blackwood_headers_audit) without opening a schema.

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

Usage Guidelines5/5

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

Explicitly names the use contexts (osint, security, due diligence) and the exclusions (historical whois, registrant personal data redacted by registries, port/vulnerability scans). The 'when-not' list removes the most likely mis-invocations, which is rare and valuable.

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

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