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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so the safety profile is covered. The description adds meaningful behavioral context beyond that: launch identity is copyable, so one name maps to many mints/wallets, and results are dated observations.

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?

Front-loaded with the core action, followed by a compact explanation of what makes the search non-trivial and what it returns. Three sentences, all carrying information; only mild density against a fairly simple two-parameter tool.

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 usefully enumerates the return contents (count, wallets, recent launches as dated observations). Combined with full parameter coverage and annotations, an agent has enough to call and interpret it correctly, though explicit sibling routing is missing.

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% and the enum for kind is documented, so the baseline is 3. The description adds a little meaning — that a name can correspond to many mints from many wallets — but no syntax or format detail beyond the schema examples (PNUT).

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 verb and resource: searching the register for launches by ticker symbol or launch name, and clarifies it returns counts, wallets, and recent launches. It is clearly distinguishable from lookup_launch by its aggregate/multi-result nature, but it never names or contrasts a sibling explicitly.

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?

Gives concrete usage contexts — checking whether a token by a name launched before, or how often a ticker has been reused — which tells the agent when this tool applies. It stops short of stating when NOT to use it or routing to archive_status/lookup_launch for narrower queries.

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