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

Annotations already cover readOnly/openWorld, and the description adds value beyond them: the $0.10 USDC x402 charge per successful call, the explicit no-charge-on-error rule, and the upstream sources (GeckoTerminal + GoPlus). It does not disclose freshness/latency of the 'newly launched' window, which is the main remaining behavioral gap.

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?

Two dense sentences with no filler; pricing is front-loaded, which is defensible for a pay-per-call tool but pushes the actual purpose into the second sentence instead of leading with it.

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?

With no output schema, the description does describe the return shape (pools plus score and red flags) and the cost model, which is what an agent needs. It stops short of clarifying how recent the launches are or result ordering.

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 chain, limit and minScore including enums, ranges and defaults. The description only echoes the chain set and the 0-100 score range, adding no syntax or format detail beyond 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?

States a specific resource (newly launched token pools) across named chains, plus exactly what each result carries (0-100 safety score and named red flags). No sibling tool in the set overlaps with a new-token feed, so an agent can select this unambiguously.

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 conveys the domain (freshly launched pools for safety screening) and the billing condition, but never says when to prefer this over alternatives or what the exclusions are. Usage is implied by the resource rather than stated.

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