price_alert

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

With no annotations, the description effectively discloses key behaviors: polling mechanism, webhook POST, 30-day expiration, and cost implication. It provides a clear mental model, though lacks details on error handling or rate limits.

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: four sentences covering purpose, inputs, mechanism, and expiry without any redundant information. Every sentence 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?

Given the tool's simplicity and lack of output schema, the description covers the essential aspects: registration, data source, webhook, and expiration. It could mention acknowledgment or error responses, but is largely 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?

The description adds value beyond the input schema by specifying that direction accepts 'above/below' and that webhook must be https. Since schema coverage is 100%, baseline is 3, but the description enhances understanding of parameter constraints.

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 tool registers a price-threshold alert on Base tokens, using specific verbs and resources. It distinguishes itself from sibling tools like 'token_price' or 'market_snapshot' by focusing on alerting rather than querying.

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 implies when to use the tool (for ongoing price monitoring via webhook) but does not explicitly compare with alternatives or state when not to use it. No direct guidance on preferring this over other price-related tools.

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