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

With no annotations, the description carries the full burden of behavioral disclosure. It usefully notes that the tool is free and tied to triggers created by arm_price_trigger, but it does not confirm read-only behavior, describe error cases, or explain what the status response contains.

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?

A single sentence that front-loads the resource and scope with zero wasted words. It is appropriately sized for a simple status lookup tool.

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 read tool with no output schema, the description gives the essential scope and cost. It falls short by not describing the return value at all, which is important because no output schema exists to document it.

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 schema has 0% description coverage for the single required 'id' parameter, so the description must compensate. It implies the id refers to a trigger armed with arm_price_trigger, but it never explicitly mentions the parameter, its expected format, or how to obtain the id.

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 states the resource (a trigger) and the scope (armed with arm_price_trigger), and names the sibling tool that creates it. It is clear what the tool retrieves, though it does not spell out what fields the status includes.

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?

The phrase 'armed with arm_price_trigger' implies the tool is used after calling arm_price_trigger, giving implicit context. However, there is no explicit when-to-use guidance, no exclusions, and no mention of alternative tools for other trigger types.

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