storekit__request_test_notification

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

Annotations declare readOnlyHint=false and destructiveHint=false, so the agent already knows this triggers a write-ish action that isn't destructive. The description adds real behavioral value by disclosing the returned token and its purpose, but omits auth/permission requirements and the per-day rate limit Apple imposes on test notifications.

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 tight sentences: action, return value, API provenance. The core action is front-loaded and no sentence is filler.

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?

With no output schema, disclosing that a lookup token is returned covers the key missing structured information. For a zero-required-param mutation with strong schema docs, the remaining gaps (rate limits, auth scope) are modest rather than disqualifying.

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 both parameters carry enums/defaults documented in the schema itself. The description adds nothing about 'app' or 'environment', so the 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?

States a specific verb+resource ('send a test notification') plus the target ('your configured webhook endpoint') and the API tag. Nothing in the sibling list overlaps — get_notification_history and get_refund_history are read tools for different resources, so the action is unambiguous.

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?

Use is only implied: the agent can infer this verifies webhook delivery, and the mention of looking up the delivery result hints at a follow-up flow. But there is no explicit when-to-use, no prerequisites, and no alternative named.

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