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

With no annotations, the description fully bears the behavioral disclosure burden. It states returns are the full historical record (not a sample), not degraded, guarantees max staleness 86400 seconds, lists price $0.10, and honestly discloses inventory details and that it is not a prediction. This is highly transparent.

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 front-loads the core purpose but becomes verbose with detailed inventory and disclaimers. While informative, it is not concise and could be streamlined without losing key points.

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?

The description covers data nature, pricing, freshness, and honesty, but lacks explanation of parameter usage, output schema (only mentions 'same complete schema' vaguely), and payment mechanism. For a tool with 3 params, no output schema, and no annotations, this leaves gaps.

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?

Despite 0% schema description coverage, the description does not explain any of the three parameters (limit, since, payment_signature). It adds no meaning beyond what the schema's names and defaults provide, leaving the agent without guidance on how to use them.

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 retrieves verified POTUS statement events at T+24h and older, at a price of $0.10. This specific verb+resource combination distinguishes it from sibling tools like sygnl47_events_live (real-time) and sygnl47_events_15m (fresher intervals).

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 use for historical events older than 24h due to the 'T+24h and older' clause and pricing tier mention. However, it does not explicitly state when not to use this tool or name alternative tools for fresher data.

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