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Hermoso

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JavaScript
Remote

List Meta pages & ad accounts

list_meta_pages
Read-only

List connected Meta pages, linked Instagram business accounts, and ad accounts to select a target before posting or creating campaigns. Returns a connect hint if Meta isn't linked.

Instructions

List the Facebook Pages (with any linked Instagram business account) and ad accounts on the connected Meta account — use before post_to_meta / create_meta_campaign to pick the target. Requires the user to have connected Meta (Settings > Connectors > Meta); returns a connect hint if not.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.1.161
    • changedOutput schema / (root)
      Previous value: -{
-  "$schema": "http://json-schema.org/draft-07/schema#",
-  "additionalProperties": false,
-  "properties": {
-    "adAccounts": {
-      "items": {},
-      "type": "array"
-    },
-    "pages": {
-      "items": {},
-      "type": "array"
-    }
-  },
-  "type": "object"
-}New value: +null
  2. Addedv0.1.15

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already mark it read-only/non-destructive; the description adds value by disclosing the connection prerequisite and the 'connect hint' failure mode. It doesn't detail output shape or pagination, but those are not critical for a 0-param list.

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?

Two sentences cover scope, orchestration context, and a prerequisite in order, with no filler or repetition. The primary listing action is front-loaded.

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 zero-parameter, read-only list operation with no output schema, the description covers what is listed, when to call it, and what happens if the prerequisite isn't met. Nothing an agent needs to use 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 has zero parameters, meeting the baseline of 4. No parameter documentation is needed and the description correctly stays silent on inputs.

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?

The description names the specific verb ('List') and resource ('Facebook Pages with linked Instagram business accounts, and ad accounts on the connected Meta account'), and ties it to a concrete pre-publish workflow. It differentiates from sibling list_meta_posts by focusing on pages/accounts as targets.

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

Usage Guidelines4/5

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

Clearly states when to use it ('use before post_to_meta / create_meta_campaign to pick the target') and the prerequisite (Meta connection). It does not explicitly list exclusions or compare against list_meta_posts, but the target-picking context is sufficient direction.

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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