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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so safety is covered. The description adds that this is the complete directory of launches plus the field set each entry carries, but says nothing about size, ordering, or whether results are exhaustive in practice.

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?

A single front-loaded sentence with no filler; the field list is compact and informative. Slightly dense with unexplained domain terms rather than verbose.

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 list the returned fields (short, stock, P/L, burns, fees), which is helpful. However, it leaves the shape of entries, the meaning of 'short', and the scope/currency of P/L unexplained, so an agent cannot fully predict what it will get back.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; baseline of 4 applies. The description correctly implies a no-argument, whole-directory read.

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 identifies the resource as a directory of every coin launched on Pons from Borro and enumerates the data it carries (short, stock, P/L, burns, fees). It is a clear resource but the verb is implicit ('directory') and the domain jargon (Pons, Borro, short) does not let an agent distinguish it confidently from siblings like markets, prices, or trades.

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?

There is no statement of when to call this versus the many sibling listing tools (markets, prices, market, trades). The word 'every' hints at a full enumeration, but no exclusions, prerequisites, or alternatives are named.

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