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

With no annotations, the description carries the full behavioral burden and does well: it discloses that the call launches the campaign LIVE, sends invite emails automatically, and is idempotent/safe to retry. It does not detail failure modes or reversal options, but the key side effects are covered.

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?

Four compact sentences front-load the legacy constraint and alternative flow, then state precondition, action, side effects, and retry safety. Every sentence adds operational value and there is no padding.

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 mutating tool with no annotations and no output schema, it covers prerequisites, campaign-type restriction, required arguments, side effects, and idempotency. It could additionally state what response or callback signals success, but an agent knows how to invoke it correctly.

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 fully documents campaignId, txSignature, and walletAddress. The description reinforces that txSignature is from the activation fee payment and mentions activationRequired from create_campaign, adding modest context without needing to repeat parameter details.

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 action: after paying the USDC activation fee, pass the transaction signature to launch a NO_REWARD campaign live. It explicitly frames itself as the LEGACY wallet flow and contrasts it with the create_account/launch_campaign path, making its role distinct from siblings.

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 explicit when-to-use: legacy wallet users, NO_REWARD campaigns, only after activationRequired fee is paid. It also tells new integrations to use create_account and launch_campaign instead, satisfying the when-not/alternative guidance.

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