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Crawler policy guide

crawler_policy_guide
Read-onlyIdempotent

Static reference of 13 known AI crawlers and control tokens (GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended...): owner, purpose, whether each drives AI citations or training, plus rules of thumb. Use to decide which bots to allow or block. No site is fetched. Do NOT use to audit a real site (use check_ai_readiness) or to produce rules (use robots_txt_for_ai).

Input Schema

NameRequiredDescriptionDefault

No arguments

Output Schema

NameRequiredDescriptionDefault
crawlersYesReference row per known AI crawler or control token.
by_purposeYesBot names grouped by why you would allow or block them.
disclaimerYesInformational disclaimer: crawler behaviour can change, verify against provider docs.
rules_of_thumbYesShort guidance on allowing/blocking AI crawlers.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • removedInput schema / additionalProperties
      Removed value: -false
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "by_purpose": {
+      "description": "Bot names grouped by why you would allow or block them.",
+      "properties": {
+        "training_controls": {
+          "description": "Bots whose purpose includes model training.",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "want_ai_visibility": {
+          "description": "Bots to keep allowed for AI search/citations.",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "want_ai_visibility",
+        "training_controls"
+      ],
+      "type": "object"
+    },
+    "crawlers": {
+      "description": "Reference row per known AI crawler or control token.",
+      "items": {
+        "properties": {
+          "advice": {
+            "type": "string"
+          },
+          "bot": {
+            "type": "string"
+          },
+          "owner": {
+            "type": "string"
+          },
+          "purpose": {
+            "type": "string"
+          },
+          "ua": {
+            "type": "string"
+          },
+          "visibility_critical": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "bot",
+          "owner",
+          "purpose",
+          "ua",
+          "visibility_critical",
+          "advice"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "disclaimer": {
+      "description": "Informational disclaimer: crawler behaviour can change, verify against provider docs.",
+      "type": "string"
+    },
+    "rules_of_thumb": {
+      "description": "Short guidance on allowing/blocking AI crawlers.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "crawlers",
+    "by_purpose",
+    "rules_of_thumb",
+    "disclaimer"
+  ],
+  "type": "object"
+}
  2. Changed2 schema fields changed
    • addedInput schema / additionalProperties
      Added value: +false
    • changedOutput schema / (root)
      Previous value: -{
-  "properties": {
-    "by_purpose": {
-      "description": "Bot names grouped by why you would allow or block them.",
-      "properties": {
-        "training_controls": {
-          "description": "Bots whose purpose includes model training.",
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        "want_ai_visibility": {
-          "description": "Bots to keep allowed for AI search/citations.",
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        }
-      },
-      "required": [
-        "want_ai_visibility",
-        "training_controls"
-      ],
-      "type": "object"
-    },
-    "crawlers": {
-      "description": "Reference row per known AI crawler or control token.",
-      "items": {
-        "properties": {
-          "advice": {
-            "type": "string"
-          },
-          "bot": {
-            "type": "string"
-          },
-          "owner": {
-            "type": "string"
-          },
-          "purpose": {
-            "type": "string"
-          },
-          "ua": {
-            "type": "string"
-          },
-          "visibility_critical": {
-            "type": "boolean"
-          }
-        },
-        "required": [
-          "bot",
-          "owner",
-          "purpose",
-          "ua",
-          "visibility_critical",
-          "advice"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    },
-    "disclaimer": {
-      "description": "Informational disclaimer: crawler behaviour can change, verify against provider docs.",
-      "type": "string"
-    },
-    "rules_of_thumb": {
-      "description": "Short guidance on allowing/blocking AI crawlers.",
-      "items": {
-        "type": "string"
-      },
-      "type": "array"
-    }
-  },
-  "required": [
-    "crawlers",
-    "by_purpose",
-    "rules_of_thumb",
-    "disclaimer"
-  ],
-  "type": "object"
-}New value: +null
  3. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "by_purpose": {
+      "description": "Bot names grouped by why you would allow or block them.",
+      "properties": {
+        "training_controls": {
+          "description": "Bots whose purpose includes model training.",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "want_ai_visibility": {
+          "description": "Bots to keep allowed for AI search/citations.",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "want_ai_visibility",
+        "training_controls"
+      ],
+      "type": "object"
+    },
+    "crawlers": {
+      "description": "Reference row per known AI crawler or control token.",
+      "items": {
+        "properties": {
+          "advice": {
+            "type": "string"
+          },
+          "bot": {
+            "type": "string"
+          },
+          "owner": {
+            "type": "string"
+          },
+          "purpose": {
+            "type": "string"
+          },
+          "ua": {
+            "type": "string"
+          },
+          "visibility_critical": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "bot",
+          "owner",
+          "purpose",
+          "ua",
+          "visibility_critical",
+          "advice"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "disclaimer": {
+      "description": "Informational disclaimer: crawler behaviour can change, verify against provider docs.",
+      "type": "string"
+    },
+    "rules_of_thumb": {
+      "description": "Short guidance on allowing/blocking AI crawlers.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "crawlers",
+    "by_purpose",
+    "rules_of_thumb",
+    "disclaimer"
+  ],
+  "type": "object"
+}
  4. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -{
-  "properties": {
-    "crawlers": {
-      "description": "List of AI crawlers with their respective policies.",
-      "items": {
-        "properties": {
-          "allow": {
-            "description": "Rule of thumb for allowing the crawler.",
-            "type": "boolean"
-          },
-          "block": {
-            "description": "Rule of thumb for blocking the crawler.",
-            "type": "boolean"
-          },
-          "drives_ai_training": {
-            "description": "Indicates whether the crawler drives AI training.",
-            "type": "boolean"
-          },
-          "drives_ai_visibility": {
-            "description": "Indicates whether the crawler drives AI visibility.",
-            "type": "boolean"
-          },
-          "owner": {
-            "description": "The owner or organization responsible for the AI crawler.",
-            "type": "string"
-          },
-          "purpose": {
-            "description": "The intended purpose of the AI crawler.",
-            "type": "string"
-          }
-        },
-        "required": [
-          "owner",
-          "purpose",
-          "drives_ai_visibility",
-          "drives_ai_training",
-          "allow",
-          "block"
-        ],
-        "type": "object"
-      },
-      "type": "array"
-    }
-  },
-  "required": [
-    "crawlers"
-  ],
-  "type": "object"
-}New value: +null
  5. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "crawlers": {
+      "description": "List of AI crawlers with their respective policies.",
+      "items": {
+        "properties": {
+          "allow": {
+            "description": "Rule of thumb for allowing the crawler.",
+            "type": "boolean"
+          },
+          "block": {
+            "description": "Rule of thumb for blocking the crawler.",
+            "type": "boolean"
+          },
+          "drives_ai_training": {
+            "description": "Indicates whether the crawler drives AI training.",
+            "type": "boolean"
+          },
+          "drives_ai_visibility": {
+            "description": "Indicates whether the crawler drives AI visibility.",
+            "type": "boolean"
+          },
+          "owner": {
+            "description": "The owner or organization responsible for the AI crawler.",
+            "type": "string"
+          },
+          "purpose": {
+            "description": "The intended purpose of the AI crawler.",
+            "type": "string"
+          }
+        },
+        "required": [
+          "owner",
+          "purpose",
+          "drives_ai_visibility",
+          "drives_ai_training",
+          "allow",
+          "block"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "crawlers"
+  ],
+  "type": "object"
+}
  6. First observed

TDQS

A4.7/5.0
Behavior4/5

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

Annotations already establish read-only, idempotent, non-destructive, closed-world behavior, so the bar is lower. The description still adds real value by clarifying 'No site is fetched' and that the content is static, which prevents an agent from expecting live network results. It does not describe return shape, but an output schema exists to cover that.

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

Conciseness5/5

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

Front-loads what the reference contains, follows with the intended use, and ends with the exclusions and alternatives. Every clause carries routing or content information; nothing is padding.

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?

A zero-parameter static reference with an output schema needs only to say what it contains and when to reach for it, and the description does both, including explicit routing to alternatives. Nothing an agent needs to invoke it correctly is missing.

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

Parameters4/5

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

The tool takes zero parameters, so per the baseline this dimension scores 4. The description correctly implies a no-input reference lookup and adds no misleading parameter expectations.

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 resource type (static reference of 13 known AI crawlers and control tokens) with named examples, and explicitly separates itself from sibling tools by naming check_ai_readiness and robots_txt_for_ai. An agent can distinguish it from every sibling 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?

Gives the use case ('Use to decide which bots to allow or block') plus two explicit exclusions with the exact alternative tool for each. Nothing is left to inference about when this tool is the right choice.

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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