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

With no annotations, the description carries the full burden: it does disclose the auth requirement (API key) and that results are confined to the connected account, which is genuinely useful context. It does not disclose whether results are paginated, ordered, or capped, nor what happens when both projectId and taskId are supplied. For a read-only listing tool that is an acceptable but not rich behavioral picture.

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?

A single sentence, front-loaded with the resource and account scope, with the parenthetical auth note in the right place. The colon-separated mode list is dense but readable; nothing is redundant.

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?

There is no output schema and no annotations, so the description would need to explain result shape, ordering, and limits to be fully self-sufficient, and it does not. It does cover scope, auth, and the mode selection, which is the core of calling it correctly, but an agent still cannot predict what comes back.

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 coverage is 100% and the schema already explains defaults (from=now, to=+14 days), the 62-day max, and that taskId ignores from/to. The description adds only the higher-level grouping of parameter combinations into three modes, which is a modest benefit over the schema. Baseline 3 is appropriate.

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 states a concrete resource (meetings) and enumerates the three retrieval modes: the key owner's meetings in a window, a project's meetings in a window, or upcoming meetings about one task. It is scoped to the connected LoopGantt ACCOUNT, so an agent can distinguish it from create_meeting or the list_tasks/list_projects siblings. It stops short of explicitly naming a neighboring tool it should be preferred over.

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 three-mode framing implicitly tells the caller when to use each shape of the call (account-wide window, projectId, taskId), which pairs cleanly with the optional parameters. There are no explicit exclusions or named alternatives, and the 'requires a LoopGantt API key' clause is the only precondition surfaced.

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