list_currencies

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

No annotations provided. The description does not disclose behavioral traits such as whether it is read-only, pagination, rate limits, or if the list is exhaustive. It only mentions what data is included, leaving the agent uninformed about side effects or constraints.

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, short sentence that is concise but lacks structure. It does not front-load the primary purpose or provide any logical breakdown. While not verbose, it does not earn its place by adding value beyond the name.

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 no output schema and a simple input schema, the description should explain what the output looks like (e.g., list of objects) and any pagination. It only mentions fields, but not format or behavior regarding the 'limit' parameter. The description is incomplete for an agent to fully understand the tool's behavior.

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 0%. The description does not mention the 'limit' parameter or its semantics, such as default, range, or how it affects results. The parameter's purpose is entirely left to the schema, which has no title explanation beyond 'Limit'.

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 lists all tracked currencies and mentions the fields returned (symbol, id, chain metadata). It implicitly distinguishes from 'list_stablecoins' by being broader. However, it lacks an explicit verb like 'list' or 'retrieve', though the name fills the gap.

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?

No guidance on when to use this tool vs alternatives like 'list_stablecoins' or other list tools. Lacks when-not-to-use or context for selection.

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