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

Annotations already cover the safety profile (not read-only, not idempotent, not destructive, open-world), so the description's job is to add context – and it does: creation may consume a licensed resource/user slot, and details should be confirmed with the user before writing. It does not state what happens if a duplicate name already exists, which is the main remaining behavioral unknown.

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?

Three short sentences: action and scope first, licensing caveat second, confirmation requirement third, endpoint last. No filler, and the most important constraints are front-loaded.

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?

The schema is rich and annotated, but with no output schema the description never says what a successful create returns (e.g. the new resource id) or how to reference the resource afterwards, which matters for a non-idempotent create with 7 fields including a nested object. Coverage of inputs and licensing is otherwise adequate.

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 100% and the nested details object (data1..data10) is fully documented in the schema, so the description owes little. It adds no field-level semantics beyond the schema, which is the baseline-3 case.

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?

States a specific verb (add/create) and resource (person, room, equipment) in a named account, plus the underlying endpoint POST /api/resources. An agent can distinguish it from scheduleit_create_event and scheduleit_create_group without opening any schema.

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 'Confirm the details with the user first' line gives a useful pre-call instruction, and the WRITE prefix implies this is the creation path. However, it never names the sibling to use instead for modifying an existing resource (scheduleit_update_resource) or for checking for duplicates (scheduleit_list_resources / scheduleit_get_resource), so the when-not case must be inferred.

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