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

Adds substantial context beyond the annotations: $0.009 USDC x402 pricing, unpaid HTTP returns 402 even on malformed queries, invalid signed calls are rejected pre-settlement and uncharged, and cached/stale/cacheAgeMs semantics. However the final bracketed block restates the x402 payment boilerplate already covered in the body, diluting the net added value for what is already a long disclosure.

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?

Purpose is front-loaded before output details, routing, and billing, which is the right ordering. It is dense but mostly earns its place; the main waste is the duplicated payment statement ('Costs $0.009 USDC... via x402' in the body and again in the bracketed falcon.sol block).

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 still spells out the return payload (holdings, PnL windows, win rate, labels, copyTradeScore/Grade composition, null-score condition) plus billing and caching behavior. Nothing an agent needs in order to call this correctly and interpret the result 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%, so both address and txLimit are already documented with range, default and example. The description only restates the txLimit range and default, adding no new semantic meaning (e.g. what a larger window costs or changes). Baseline 3 applies when the schema does the heavy lifting.

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 pair: priced holdings plus windowed PnL for exactly one Solana wallet. It also enumerates the returned artifacts (USD valuation, summary, realized/unrealized PnL, win rate, labels, copyTradeScore), which lets an agent distinguish it from wallet_preview and wallet_quick without opening a schema.

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?

Explicit routing: use free wallet_preview first if only SOL balance and last-active time are needed, or wallet_quick for a cheaper copy-trade screen. That is a direct when-to-use-this vs when-to-use-a-sibling statement naming both alternatives.

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