Get book tickers

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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, and destructiveHint=false, so the safety and idempotency profile is fully covered. The description adds only the 'Weight: 1' rate-limit hint, which is moderately useful but thin. No return-shape or pagination context is provided.

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?

Extremely short and front-loaded: the purpose and the rate-limit weight each appear once with no filler. The repetition of the title at the start is slightly redundant but harmless.

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?

For a simple read-only 2-parameter tool with 100% schema coverage, annotations, and no output schema, the description is minimally complete for invocation. However, it omits any differentiation from 'pionex_market_get_tickers', which is a meaningful gap given the sibling overlap.

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 description coverage is 100%, with both 'type' and 'symbol' fully documented in the schema, including the PERP default and enum values. The description adds nothing about parameters, so a baseline 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 states a specific resource (book tickers) and explains it as best bid/ask prices, which is helpful. However, it does not distinguish this from the similar sibling 'pionex_market_get_tickers', so an agent cannot tell them apart from the description alone.

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?

There is no when-to-use guidance, no indication of how it differs from pionex_market_get_tickers, and no exclusions. The only contextual filler is the rate-limit weight, which does not guide selection.

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