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Eyalm321
by Eyalm321

zernio_set_messenger_menu

Set or update your Messenger chat's persistent menu to display quick-action buttons, defining their labels and postback payloads.

Instructions

Set or update the Facebook Messenger persistent menu -- the quick-action buttons shown in your Messenger chat.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
accountIdYesThe Zernio Facebook account ID
menuItemsYesMenu items to show in the Messenger persistent menu
Behavior2/5

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

No annotations exist, so the description carries full burden. It discloses that the tool writes ('set or update') but omits important behaviors: whether the menu is fully replaced or merged, whether it is idempotent, what happens on failure (e.g., schema validation), or any permission or rate-limit implications.

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?

The description is a single, direct sentence that front-loads the purpose. It is efficient but could be slightly more structured (e.g., bullet points) to separate overview from details. Nevertheless, it wastes no words.

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?

For a mutation tool with no output schema, the description lacks behavioral completeness. It does not explain the success response (e.g., whether it returns the updated menu or a status), error scenarios, or any prerequisites like authentication or page selection. The sibling tool list shows related operations, but the description fails to connect them.

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%, with both parameters fully documented. The description adds no extra meaning beyond labeling the menu as 'quick-action buttons'. Since the schema already defines accountId and menuItems with required fields, the description provides marginal value.

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 clearly states the verb ('Set or update'), the resource ('Facebook Messenger persistent menu'), and provides a concrete analogy ('quick-action buttons shown in your Messenger chat'). It effectively distinguishes this tool from siblings like zernio_get_messenger_menu and zernio_delete_messenger_menu.

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

Usage Guidelines2/5

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

No when-to-use or alternatives guidance is provided. The description does not mention when to use this tool versus fetching or deleting the menu, nor does it specify prerequisites such as requiring a connected Facebook page or an existing conversation context.

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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