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

With readOnlyHint=false and openWorldHint=true already declared, the description still adds real value: the event is submitted for human review, DICE may decline at its sole discretion, approval triggers announcement and on-sale, and a Cotlet API key with access to this app is required. One sentence ('By default you confirm each call; you can switch that off') is ambiguous about who confirms what, which keeps it from a 5.

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 core content is duplicated almost verbatim: 'Send/Sends a draft to DICE for review' appears twice and 'Once approved it is announced and goes on sale on its dates' is repeated word for word. The remaining confirmation and credential notes are useful, but the paragraph is roughly half 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?

For a one-parameter, no-output-schema submission tool, the description covers the lifecycle (submit, review, possible decline, announce, on-sale) plus auth and confirmation requirements. What is missing is how a decline or confirmation prompt actually surfaces, but the essential operational picture 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?

There is a single parameter with 100% schema description coverage ('Event ID from list_events'), so the schema carries the semantics entirely. The description never mentions event_id or where to obtain it, so it adds nothing here, and baseline 3 applies.

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 opening sentence states a specific verb and resource ('Send a draft to DICE for review') and the effect of the call is clear. However, it never distinguishes itself from siblings such as dice_create_event, dice_update_event, or dice_cancel_event, so the agent must infer that this is the step after a draft already exists.

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?

Usage is implied rather than stated: 'Send a draft' tells you the event must already exist as a draft, and the confirmation/API-key notes give operational preconditions. There is no explicit when-not-to-use or named alternative among the dice_* tools, so routing still depends on inference.

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