Economic calendar

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

Annotations indicate read-only; description adds that it lists both scheduled and released events with figures. Does not contradict annotations and provides useful behavioral context beyond 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?

Single, well-structured sentence that front-loads the core action and then details defaults and filters with zero wasted words.

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?

Covers return fields (actual, previous, consensus), defaults, and common filters. Lacks mention of pagination or response format, but sufficient for a list tool with a limit parameter.

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 has 100% coverage, but description adds meaningful context like defaults, filtering purpose, and concrete example (event_id: us_cpi), enhancing understanding beyond schema alone.

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 it lists scheduled and released macroeconomic events over a date range with specific figures (actual, previous, consensus), clearly distinguishing it from sibling tools like stocks_earnings or markets_calendar.

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?

Provides clear context on defaults (US, next 30 days) and filtering options (country, impact, agency, event_id), but does not explicitly state when not to use or compare with alternatives.

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