team_time_ack_agent_messages

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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the safety profile is partly covered. The description usefully adds that acknowledgement is a delivery record only, not a reply or completion, but is silent on the destructive implication, whether re-acknowledging fails or is harmless, and on the 50-message batch limit.

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?

Two tight sentences with the action first and the disambiguation second. Nothing is wasted and the most important constraint is 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?

For a mutating tool flagged destructive with no output schema and zero parameter documentation, the definition does not say what state changes, what happens on duplicate acknowledgement, or how the batch of message IDs is scoped to an installation. It is clear about intent but thin on the details needed to call it correctly.

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% across three parameters (installationId, messageIds, runId), yet the description mentions none of them. It gives no hint that messageIds is a 1-50 batch array or that installationId/runId are UUID scoping identifiers, so the schema alone must carry all parameter meaning.

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 gives a specific verb and resource ('Acknowledge messages') plus a precondition ('after consuming their context'), so the action is unambiguous. The clause 'never a reply or task completion' implicitly separates it from reply_agent_message and complete_task, though no sibling is named outright.

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?

'After consuming their context' implies the trigger condition, and the negative scoping steers away from replying or completing tasks. However, no alternative tool is named and there is no explicit when-not guidance (e.g., when to prefer reply_agent_message or get_agent_message first).

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