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

Annotations already declare readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds the useful scoping detail that it returns protocol-level volume and analytics rather than user-specific data, but it does not disclose rate limits, required auth, or response behavior. With annotations present, this is a solid but not rich contribution.

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?

One sentence with no wasted words, front-loaded with the action and target. It is efficiently written and easy to scan, though the brevity comes at the cost of contextual depth.

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?

The tool has four parameters, no output schema, and ambiguous relationships with several peers like peer_market_protocol_stats. The description does not explain valid range values, whether currency/platform are filters or required, or what 'analytics' includes in the response. An agent would struggle to call this correctly without guessing.

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 all four parameters (range, params, currency, platform) have descriptions in the schema itself. The tool description adds no parameter-level meaning, but the schema already documents each field, so 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 names a specific verb ('Fetch') and a resource ('Peerlytics protocol volume and analytics') with a time-range qualifier, so an agent can tell it is a read-only data retrieval tool. However, it does not differentiate it from close siblings like peer_market_protocol_stats or peer_market_activity, whose names and descriptions likely overlap.

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 when-to-use or when-not-to-use guidance is given. The phrase 'for a time range' hints at the use case, but the description never names alternatives or explains how this tool differs from the many peer_market_* siblings, so an agent has no basis to prefer it.

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