get_paxg_tick

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

Without annotations, the description must explain behavior. It mentions the data source (Binance) and that it is a free real-time proxy, but it doesn't disclose potential delays, availability limitations, or what might happen if Binance is unreachable. The read-only nature is implied but not explicit.

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, compact sentence that conveys the essential purpose without 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?

With no output schema and no parameters, the description should clarify what a 'trade' contains (e.g., price, volume, timestamp) or at least that it returns a price tick. It gives a general idea but lacks specifics for a tool that returns a data payload.

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 tool has zero parameters, and the schema confirms this with 100% coverage. The baseline for no parameters is 4, and the description adds no unnecessary parameter detail.

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 returns the most recent PAXG trade, a real-time gold proxy via Binance. It distinguishes itself from other gold-related tools by specifying the exact resource (PAXG) and the nature (latest trade), though it doesn't explicitly contrast with siblings like get_gold_price.

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 the tool is for real-time gold pricing but provides no guidance on when to choose this over alternatives such as get_gold_price or get_paxg_ohlcv_realtime. No when-to-use or when-not-to-use context is given.

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