get_forex_prices

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

No annotations are provided, so the description must disclose behavioral traits. It only states the tool fetches data, without mentioning rate limits, data sources, error handling, or default behavior if parameters are omitted. For a read tool, it lacks details on what 'historical intraday' entails.

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 a single sentence with no wasted words. It is front-loaded and efficiently communicates the core functionality.

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?

With no output schema, the description does not explain what the returned data looks like (e.g., OHLC, bid/ask, timestamps). It also doesn't clarify the relationship with siblings like get_end_of_day_prices. This lack of return structure information makes it incomplete for a 4-parameter tool.

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%, so the input schema already documents all parameters. The description adds overall context ('historical intraday') but does not provide additional meaning for individual parameters beyond what the schema states. Baseline score of 3 is appropriate.

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 fetches historical intraday Forex prices for a given ticker with optional date range and frequency. This specific verb and resource distinguish it from sibling tools like get_forex_top_of_book (current top-of-book) and get_end_of_day_prices (end-of-day, not intraday).

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 usage for historical intraday forex data but provides no explicit guidance on when to use this tool versus alternatives, nor any exclusions or prerequisites. It lacks context like 'use this when you need intraday price history'.

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