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Create Rich Menu

create_rich_menu
Destructive

Create a rich menu with custom actions, generate its image, and set it as the default rich menu for a LINE Official Account.

Instructions

Create a rich menu based on the given actions. Generate and upload a rich menu image based on the given action. This rich menu will be registered as the default.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionsYesThe actions of the rich menu.
chatBarTextYesText displayed in the chat bar and this is also used as name of the rich menu to create
Behavior3/5

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

Annotations already mark destructiveHint: true. The description adds that the rich menu becomes the default, which is useful context. However, it does not detail side effects like overwriting existing defaults or quota implications.

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

Conciseness3/5

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

Two sentences with some redundancy ('Generate and upload' repeats the idea). Could be more concise. Contains key information but not optimally structured.

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

Completeness3/5

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

Missing details about image generation (does it require an image URL? auto-generate?), and the confirmation that it becomes default. With no output schema, the description should explain return value but doesn't. Adequate but not complete.

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 description coverage is 100%, so baseline is 3. The description adds no extra meaning to parameters beyond what the schema provides, but this is acceptable given full schema coverage.

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 clearly states it creates a rich menu and registers it as default. It distinguishes from sibling tools like delete, cancel, set default. However, some redundancy and singular/plural inconsistency slightly reduce clarity.

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 explicit guidance on when to use this tool versus alternatives. It does not explain prerequisites, such as whether a rich menu already exists or how it interacts with other rich menu operations.

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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