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

Annotations already declare readOnly=false, destructive=false, idempotent=false, openWorld=false, so the agent knows this is a non-idempotent local write. The description adds no behavioral context beyond that: no mention of duplicate-name handling, permissions, what happens to event fields when is_event_with_guests is false, or what the call returns. With annotations covering the safety profile, this leaves the extra-behavior layer essentially empty.

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?

One-line purpose statement front-loads the intent, followed by a compact per-argument list; no filler sentences and each line carries distinct information. Sized appropriately for an 8-parameter tool.

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 creation tool with no output schema, the description covers purpose and every parameter, which is most of what an agent needs. It omits only side-effect/auth context and the relationship between is_event_with_guests and the four event_* fields, which is inferable but not stated.

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 0%, so the description must carry the full parameter burden and it does: it marks name as obligatory, flags description/is_public/event_type/etc. as optional, enumerates the event_type values, and gives an ISO 8601 example for event_time and rsvp_deadline. This is meaning the schema does not provide at all.

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?

'Creează o listă de cadouri nouă' states a specific verb (create) plus resource (gift list), which is enough to separate it from siblings like create_gift, get_gift_list, or update_gift_list. It does not explicitly name a sibling or scope boundary, so it stops short of a 5.

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?

The description never says when to use this tool versus the sibling create_gift or update_gift_list, nor does it state prerequisites (e.g., whether a user/account context is required before creating a list). The event-related parameters imply a use case (event gift lists) but no explicit when-to-use or when-not-to-use guidance is given.

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