AdsAgent — Meta Ads MCP

assets_list_businesses

Read-only

List cached BMs; filter then paginate. Nested links: assets_lookup_business_links

Input Schema

TableJSON Schema

Name	Required	Description	Default
`limit`	No
`cursor`	No
`search`	No
`refresh`	No
`fb_user_label`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
`message`	No
`retryable`	No
`support_ref`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed7 schema fields changedSep 10, 2026

addedOutput schema / $defs

Added value: +{
+  "s4": {
+    "properties": {
+      "count": {
+        "type": "integer"
+      },
+      "has_more": {
+        "type": "boolean"
+      },
+      "items": {
+        "items": {
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "name": {
+              "type": [
+                "null",
+                "string"
+              ]
+            }
+          },
+          "required": [
+            "id"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "count",
+      "items",
+      "has_more"
+    ],
+    "type": "object"
+  },
+  "s7": {
+    "properties": {
+      "status": {
+        "enum": [
+          "requires_validation",
+          "awaiting_assets",
+          "blocked"
+        ],
+        "type": "string"
+      },
+      "summary": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "status",
+      "summary"
+    ],
+    "type": "object"
+  }
+}

addedOutput schema / else / properties / refresh_meta / properties / created_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
addedOutput schema / else / properties / refresh_meta / properties / finished_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
addedOutput schema / else / properties / refresh_meta / properties / launch_readiness
```
Added value: +{
+  "$ref": "#/$defs/s7"
+}
```

addedOutput schema / else / properties / refresh_meta / properties / refresh_summary

Added value: +{
+  "properties": {
+    "failed_connections": {
+      "items": {
+        "properties": {
+          "label": {
+            "type": "string"
+          },
+          "reason": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "label",
+          "reason"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "failed_connections_count": {
+      "type": "integer"
+    },
+    "failed_connections_has_more": {
+      "type": "boolean"
+    },
+    "launch_readiness": {
+      "$ref": "#/$defs/s7"
+    },
+    "observed_at": {
+      "type": [
+        "null",
+        "string"
+      ]
+    },
+    "routing_errors": {
+      "type": "integer"
+    },
+    "scope": {
+      "enum": [
+        "tenant",
+        "fb_user"
+      ],
+      "type": "string"
+    },
+    "updated_assets": {
+      "properties": {
+        "ad_accounts": {
+          "$ref": "#/$defs/s4"
+        },
+        "businesses": {
+          "$ref": "#/$defs/s4"
+        },
+        "pages": {
+          "$ref": "#/$defs/s4"
+        }
+      },
+      "required": [
+        "ad_accounts",
+        "pages",
+        "businesses"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "observed_at",
+    "scope",
+    "updated_assets",
+    "failed_connections",
+    "launch_readiness"
+  ],
+  "type": [
+    "null",
+    "object"
+  ]
+}

addedOutput schema / else / properties / refresh_meta / properties / requested_scope

Added value: +{
+  "enum": [
+    "tenant",
+    "fb_user"
+  ],
+  "type": "string"
+}

addedOutput schema / else / properties / refresh_meta / properties / started_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```

First observedSep 9, 2026

TDQS

B3.2/5.0

Behavior3/5

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

Annotations already establish readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds that data is cached and that pagination follows filtering, which is useful context beyond the annotations, but it does not explain staleness, refresh semantics, or the nature of the cached data.

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?

The description is exceptionally concise and front-loaded, with no filler. Every phrase earns its place: 'cached' conveys freshness, 'filter then paginate' gives the interaction order, and the nested-links pointer provides a useful cross-reference.

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

Completeness2/5

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

Despite having an output schema and helpful read-only annotations, the description is too thin for a tool with five undocumented parameters. An agent cannot confidently determine how to use refresh, fb_user_label, or search, or what 'cached BMs' means operationally before calling the tool.

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

Parameters2/5

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

Schema description coverage is 0%, so the description must compensate, but it only vaguely mentions 'filter then paginate.' It does not explain limit/cursor mechanics, search semantics, the refresh flag, or fb_user_label, leaving most of the five parameters ambiguous.

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 description names a specific verb ('List') and resource ('cached BMs' for Business Managers), which clearly communicates the core purpose. It also hints at a related capability via 'Nested links: assets_lookup_business_links', though it does not fully differentiate this tool from that sibling.

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 phrase 'filter then paginate' implies a browse-and-filter use case, and the nested-links pointer suggests when deeper link data is needed. However, it does not explicitly state when to prefer this tool over siblings like assets_lookup_business_links or when not to use it.

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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