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Cloudflare: account Rules Lists

cf_rules_lists_list
Read-only

List account Rules Lists (IP, hostname, ASN, redirect). Used in WAF expressions as ip.src in $list_name. Requires Account Rules Lists Read.

Input Schema

NameRequiredDescriptionDefault
kindNoFilter account rules lists by kind
zoneOrIdNoZone name (e.g. your-tenant.com) or zone ID to resolve account.id
accountIdNoCloudflare account ID; overrides CLOUDFLARE_ACCOUNT_ID and zone.account.id
context_idNoOptional explicit Connection Hub work context (ctx_*). Omit to use the conversation's active workspace; global Hub tools ignore it.
account_slugNoCloudflare account slug. Required when the workspace has multiple accounts and the zone is not yet cataloged.
environment_slugNoCloud Catalog environment used as an account-routing preference when no zone is provided.

Output Schema

NameRequiredDescriptionDefault
okYes
dataYes
contractVersionYes
dataSchemaVersionYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed16 schema fields changed
    • changedOutput schema / properties / data / additionalProperties
      Previous value: -trueNew value: +false
    • removedOutput schema / properties / data / properties / count
      Removed value: -{
-  "type": "number"
-}
    • removedOutput schema / properties / data / properties / errors
      Removed value: -{
-  "items": {
-    "$ref": "#/properties/data/properties/result/anyOf/0/items"
-  },
-  "type": "array"
-}
    • addedOutput schema / properties / data / properties / gaps
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}
    • removedOutput schema / properties / data / properties / items
      Removed value: -{
-  "$ref": "#/properties/data/properties/result/anyOf/0"
-}
    • addedOutput schema / properties / data / properties / lists
      Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "description": {
+        "type": "string"
+      },
+      "id": {
+        "type": "string"
+      },
+      "kind": {
+        "type": "string"
+      },
+      "name": {
+        "type": "string"
+      },
+      "numItems": {
+        "type": "integer"
+      }
+    },
+    "required": [
+      "id",
+      "name",
+      "kind"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}
    • removedOutput schema / properties / data / properties / messages
      Removed value: -{
-  "items": {
-    "anyOf": [
-      {
-        "type": "string"
-      },
-      {
-        "$ref": "#/properties/data/properties/result/anyOf/0/items"
-      }
-    ]
-  },
-  "type": "array"
-}
    • addedOutput schema / properties / data / properties / partial
      Added value: +{
+  "type": "boolean"
+}
    • removedOutput schema / properties / data / properties / result
      Removed value: -{
-  "anyOf": [
-    {
-      "items": {
-        "additionalProperties": true,
-        "properties": {},
-        "type": "object"
-      },
-      "type": "array"
-    },
-    {
-      "$ref": "#/properties/data/properties/result/anyOf/0/items"
-    }
-  ]
-}
    • removedOutput schema / properties / data / properties / result_info
      Removed value: -{
-  "$ref": "#/properties/data/properties/result/anyOf/0/items"
-}
    • removedOutput schema / properties / data / properties / success
      Removed value: -{
-  "type": "boolean"
-}
    • addedOutput schema / properties / data / properties / truncated
      Added value: +{
+  "type": "boolean"
+}
    • addedOutput schema / properties / data / properties / warnings
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}
    • addedOutput schema / properties / data / required
      Added value: +[
+  "lists",
+  "partial",
+  "truncated",
+  "warnings",
+  "gaps"
+]
    • addedOutput schema / properties / dataSchemaVersion
      Added value: +{
+  "const": 2,
+  "type": "number"
+}
    • changedOutput schema / required
      Previous value: -[
-  "contractVersion",
-  "ok",
-  "data"
-]New value: +[
+  "contractVersion",
+  "dataSchemaVersion",
+  "ok",
+  "data"
+]
  2. First observed

TDQS

A3.8/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description usefully adds the IAM prerequisite (Account Rules Lists Read) and explains what the returned lists are for, which goes beyond 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.

Conciseness5/5

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

Three short sentences, zero filler, with the core action and returned kinds front-loaded before the usage note and permission requirement.

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?

Output schema exists and annotations cover safety, so the description only needs to frame scope, permissions and data meaning — all present. The one gap is the multi-parameter account/zone resolution path, which is the trickiest part of calling this correctly and is left untouched.

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%, so the baseline is 3. The description's mention of kinds mirrors the 'kind' enum already documented in the schema, and it says nothing about the non-trivial account resolution parameters (zoneOrId, accountId, account_slug, environment_slug).

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

Purpose4/5

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

States a specific verb and resource (list account Rules Lists) and enumerates the kinds of lists returned (IP, hostname, ASN, redirect), which cleanly separates it from siblings like cf_rules_list_items and cf_waf_custom_rules_list. It does not explicitly name the sibling it contrasts with, so it stops short of 5.

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?

Adds real usage context — 'Used in WAF expressions as ip.src in $list_name' and the prerequisite 'Requires Account Rules Lists Read' — but says nothing about when to pick this over cf_rules_list_items (item contents) or cf_rulesets_list. Usage is implied rather than directed.

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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