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

Annotations already show readOnly=false and destructive=false, and the description builds on that by adding the authorization requirement and the assignment behavior. It does not explain whether an existing menu entry is overwritten, but with annotations already covering the safety profile, adding auth context is valuable and sufficient.

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

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

The description is short and front-loaded with the ADMIN marker, then gives the core semantics, then the role requirement. The only minor redundancy is repeating the admin/write theme across the prefix, role statement, and WRITE label, but each sentence still earns its place.

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

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

For a low-complexity admin write operation, the description covers the main action, the target domain, quantity semantics, and role requirement. An output schema exists, so return-value detail is not needed. It could mention overwrite behavior or restaurant scope more explicitly, but the essential context is present.

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

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

Schema description coverage is only 25%, so the description must compensate. It does explain the roles of menu_item_id and available_qty through 'menu item' and 'available quantity', but it does not clarify restaurant_id or the optional/required behavior beyond the schema. This is partial compensation, not complete coverage.

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

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

The description clearly identifies the operation as setting the daily menu and clarifies the core semantics: assigning a menu item to a date with an available quantity. It is specific enough to be distinguished from menu-item CRUD siblings, though it does not explicitly name an alternative.

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

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

It gives clear practical guidance by marking the operation as ADMIN and WRITE, and it explicitly states the required roles (pac_cordinator or lunch_cordinator). It does not list when-not-to-use cases or alternatives, but the role and admin context help an agent decide when this tool applies.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.