Enable Price Alert

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

Annotations already declare idempotentHint=true and destructiveHint=false, so the description need not repeat that. The description adds that the tool enables a price alert, which is consistent. It does not provide extra behavioral details beyond what annotations cover, but does not contradict them.

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?

The description is extremely concise: two sentences with no extraneous information. It front-loads the core action and then provides a useful pointer. Every sentence adds value.

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 simple tool with one parameter and an output schema (context indicates has output schema), the description covers the essential purpose and input sourcing. It does not mention prerequisites like whether the alert must exist or be disabled, but given annotations (idempotent, not destructive) and the tool's simplicity, it is sufficiently complete.

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 coverage is 100% for the single parameter alert_id. The description adds meaning beyond the schema's 'Alert indicator id' by stating that the alert_id is numeric and how to obtain it via alert_list. This helps the agent understand the parameter's nature and source.

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 clearly states the action ('Enable') and the resource ('a price alert by alert_id'). It provides a specific verb and resource. However, it does not explicitly differentiate from siblings like alert_disable, though the action itself distinguishes it. The mention of alert_list helps contextualize the input.

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 description gives a clear prerequisite: 'Use alert_list to find the numeric alert_id.' This is helpful but lacks guidance on when to use this tool versus alternatives like alert_disable or when not to use it (e.g., if alert is already enabled). No explicit when/why is provided.

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