test_channel

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

With no annotations, the description does disclose the important behavior that a real notification is emitted (a side-effecting action, not a passive read) and that delivery status is returned. It omits failure semantics, whether the test message is visibly marked/counted in the channel, and any rate limits or auth requirements.

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?

One sentence, front-loaded with the action and ending with the observable result. No 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?

For a one-parameter tool with no output schema, the description covers the action and hints at the return (delivery status). It would be stronger if it stated what is returned on failure and whether the test notification is distinguishable from a real alert.

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?

Single parameter 'id' is fully documented in the schema (100% coverage), so the schema already carries the semantics. The description only reinforces that the target is a channel; it adds no format or sourcing guidance beyond the schema.

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 names a specific verb+resource combination (send a test notification through a channel) plus the outcome (report delivery). No sibling tool does a test-notification action, so it is distinguishable in practice, though it never explicitly contrasts itself with get_channel/list_channels/create_channel.

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 case is implied — verify a channel works by sending a test notification — but there is no explicit when-to-use, when-not, or alternative routing (e.g. get_channel to inspect config vs this tool to prove delivery).

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