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

With no annotations, the description does substantial work: it discloses the data source (GeckoTerminal), cost ($0.01), return cap, request-time enrichment, and an important reliability caveat ('Heuristics, not an audit'). It does not state read-only behavior, authentication needs, rate limits, or error handling, but the safety profile is strongly implied by the feed nature.

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 front-loaded with purpose and cap, then enumerates return fields, source, caveat, and cost. It is dense but every clause is informative; the length is justified given there is no output schema, though it could be slightly more structured.

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 tool with no output schema and no annotations, the description is fairly complete: it explains what each result contains, the data source, cost, and heuristic limitation. It still leaves gaps around parameter defaults and how to choose between this and related token-inspection tools.

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 schema has 0% description coverage for the single optional `limit` parameter, so the description must compensate. It adds the maximum value ('up to 20'), but does not explain the parameter name, default behavior when omitted, or the string pattern constraint.

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 it returns the newest token launches on Solana, with specific sources and a cap of 20. It distinguishes itself from other-chain launch feeds by naming Solana, but does not explicitly differentiate from the generic `launch_feed` or clarify the boundary with `solana_token_check`.

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?

Usage is implied by 'Newest token launches on Solana' and the caveat 'Heuristics, not an audit,' which signals a discovery use case rather than a security audit. However, it does not explicitly say when to use this instead of `solana_token_check` or `launch_feed`, nor does it state exclusions or alternatives.

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