Live batch prices

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

No annotations are provided, so the description must disclose behavioral traits. It reveals that the tool is free, fast, and reads from Redis, but lacks details on rate limits, error handling, data freshness, or idempotency. The description adds some context but is not fully transparent.

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, efficient sentence that front-loads key attributes ('FREE', 'sub-second') and clearly states the tool's purpose. No waste or 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?

For a simple batch price tool with one parameter and no output schema, the description covers the data source, speed, and batch limit. It lacks output format details and error behavior, but is largely complete given the tool's simplicity.

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 input schema has 100% description coverage for the only parameter ('mints'), including maxItems=20. The description echoes the batch limit but does not add any new semantic meaning beyond the schema. Baseline 3 applies.

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's function: retrieving sub-second batch prices for up to 20 mints. It specifies the data source (Circuit gRPC indexer via Redis) and distinguishes itself from sibling tools that likely handle single tokens or different operations.

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 usage for fast batch price queries, mentioning 'FREE' and 'sub-second'. However, it does not explicitly state when to prefer this tool over alternatives like 'token_price' or 'circuit_quote', nor does it provide exclusion criteria.

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