Start a coin launch on Realia

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

Adds crucial behavior beyond annotations: no transaction is built or signed, the link expires, and the tool 'cannot spend anything on its own'. This complements readOnlyHint=false/openWorldHint=true by clarifying the side-effect profile (staging only, no spending) and the temporary nature of the URL.

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 sentences: first states purpose and outcome, second clarifies safety constraints and directs the agent to give the confirmUrl to the user. No filler or redundancy.

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 an output schema and full parameter descriptions, the description covers the remaining context: the dataset prerequisite, the non-spending behavior, link expiration, and the next user action. Nothing essential for correct invocation 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 coverage is 100% and every parameter is described in the schema. The description adds no parameter-level detail beyond what is already available, though it reinforces that dataset_id must belong to this account. 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?

States a specific verb ('Stage'), resource ('pump.fun launch for a dataset this account uploaded'), and outcome ('return a link'). Distinguishes from siblings like get_coin or list_launchpad by focusing on the pre-transaction staging step.

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 clear context: only for datasets this account uploaded, and that it returns a user-facing confirm link. Does not name alternatives or explicit exclusions, but the sibling tools are functionally distinct, so the usage context is sufficiently clear.

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