korean-market-movers

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

With no annotations, the description discloses data source (Upbit public API), coverage (260+ KRW markets), and output categories. Lacks details on update frequency, rate limits, or error handling, but the provided information is adequate.

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 concise (three sentences), front-loaded with core functionality, and every sentence adds value without redundancy.

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 purpose, source, coverage, and output categories. While no output schema exists, the description hints at the return fields (ranking criteria). Could be improved by explicitly listing output fields, but sufficient for a list 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 description coverage is 100%, so the schema already documents all parameters. The description adds no additional parameter semantics beyond what's in the schema.

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 it returns real-time movers (top risers, fallers, volume leaders) from Upbit's KRW markets, with specific ranking criteria. It distinguishes from crypto-top-movers by emphasizing Korean exchange data and the 'kimchi premium' context.

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 that Korean exchange data is a leading indicator used by institutional agents, implying use for early signals. Does not explicitly list when not to use or contrast with siblings but gives sufficient context for appropriate invocation.

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