scheduler

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

With no annotations, the description carries the full burden and it does disclose the key trait ('Read-only'), which is genuinely useful. However it says nothing about required permissions, pagination, or rate limits on this live device call.

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 tight sentence, front-loaded with verb and resource, then the returned fields, then the read-only tag. Nothing is padded and every clause earns its place.

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?

Because an output schema exists, return values need not be explained, yet the description helpfully lists them anyway. The only real gap is that device_name is left unexplained, which matters for a device-scoped call.

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?

The single required parameter (device_name) has 0% schema description coverage and the description never mentions it, so an agent gets no meaning or format guidance for the only input. The field list it does provide describes output, not the parameter.

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 and resource ('List scheduled tasks') and even names the source path (/system/scheduler) plus the fields returned. No sibling covers scheduling, so the tool is distinguishable, but the description does no explicit sibling routing.

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?

There is no when-to-use or when-not-to-use guidance and no mention of alternatives or prerequisites. Usage is only faintly implied by the read-only list framing.

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