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

With no annotations available, the description carries the full burden of behavioral disclosure. It mentions that it produces a report of balance, token accounts, and activity, but does not disclose network (mainnet vs devnet), whether it queries RPC or an API, whether it requires auth, output format, latency, or error-prone conditions. The short list of report sections is the only behavioral context.

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 short, front-loaded with the tool's purpose, and compactly lists report sections as 'balance + token accounts + activity'. It wastes no words, though it omits key usage details that would make it more helpful.

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?

Despite the description naming three report components, an agent still lacks critical context: whether any parameters are required (none are marked required), which input to choose among three near-identical parameter names, what network is used, and what the output looks like. Given the one-line description and no annotations or output schema, this is incomplete for reliable invocation.

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%, but each of the three parameters (wallet, account, address) has only a generic description ('Wallet to process', etc.) that does not clarify semantics. Crucially, it is unclear whether these are synonyms/aliases, which one is preferred, or whether they must be Solana base58 addresses vs other formats. The description does not disambiguate between wallet, account, and address, so an agent cannot confidently know which to supply.

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 states a specific verb ('report') with a clear resource (Solana address) and enumerates three output areas: balance, token accounts, and activity. Among hundreds of siblings, it is distinguishable from generic wallet-report or address tools because it explicitly targets Solana and lists its report components.

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 description gives no guidance on when to choose this tool over x402-wallet-report, x402-address-report, x402-sol-onchain, x402-wallet-activity, or other similar siblings. It does not state which input should be provided, whether this is read-only, or what makes it distinct from the many sibling report tools. The agent must infer the intended context from the tool name and brief description alone.

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