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

The description adds behavioral context beyond annotations: it states the tool is read-only, requires a Business-plan CoinPaprika key, and returns a plan-required message without one. However, it incorrectly claims 'every parameter is an optional filter' when 'rationale' is required, slightly reducing transparency.

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 and well-structured: it starts with the core purpose, then usage guidance, and finally behavioral notes. 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?

Given the absence of an output schema, the description adequately explains the tool's nature and requirements (e.g., Business-plan key). It does not detail return format, but the purpose is clear enough for most use cases.

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?

With only 14% schema description coverage, the description compensates by listing the six provider-specific parameters (dti, isin, coingecko, etc.) and explaining they are optional filters. However, it does not address the 'rationale' parameter separately, relying on the schema for its description.

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 that the tool gets mappings between CoinPaprika IDs and external/legacy identifiers (e.g., CoinMarketCap, CoinGecko). It specifies the verb 'Get' and the resource 'mappings', and distinguishes from sibling tools by focusing on ID crosswalking.

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 provides explicit use cases ('map CoinPaprika ids to X', 'id crosswalk', 'external id mapping') and explains that parameters are optional filters that narrow results. However, it does not explicitly state when not to use it or mention alternatives among the sibling tools.

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