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

With no annotations, the description carries the behavioral burden. It discloses that eligibility is checked via $MEGACHAD balance or specific NFTs, and that it returns a referral code and access status. However, it lacks details about side effects (e.g., persistence, reversibility), failure modes, or whether a signature is required.

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 two sentences long, front-loaded with the primary action and purpose, followed by eligibility and return details. No wasted words; every clause adds value.

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?

Given no output schema, the description usefully mentions return values (referral code and access status) and explains the eligibility criteria. It covers the essential decision-making context for an agent, though it omits edge cases like ineligible wallets or error behavior. For a straightforward registration tool, this is reasonably complete.

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% with concise descriptions for all three parameters. The main description adds minimal extra meaning about parameters, though it mentions returning a referral code, which may also be an input. The baseline of 3 is appropriate because the schema handles parameter documentation.

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 the action ('Register a wallet for MegaChad testnet beta access') with a specific verb, resource, and purpose. It also distinguishes itself from sibling tools like register_referral_agent by focusing on testnet access eligibility and referral code/status output.

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?

The intended use case is implied: registering for early access after an on-chain eligibility check. However, it does not explicitly compare with alternatives or state when not to use this tool (e.g., versus register_referral_agent). No exclusions or conditions are provided.

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