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

With no annotations, the description fully covers behavioral traits: runs preflight (safety+momentum), returns GO/token verdicts/summary, payment model, and disclaims 'Not financial advice.' No contradictions or missing critical behaviors.

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?

Description is front-loaded with purpose, then details. It is somewhat long but each sentence provides value. Could be tightened slightly but remains effective.

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 only one parameter and no output schema, the description adequately explains input, output, payment, and usage context. No missing information for a simple batch screening tool.

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 baseline is 3. Description adds value by noting that 'addrs' can be an array or comma-separated string, and restates the 'up to 10' limit, slightly enhancing schema info.

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?

Description clearly states the tool runs batch preflight screening on up to 10 Base tokens, outputs GO verdicts, per-token verdicts, and a summary count. Identifies the target use case ('For an agent screening a watchlist'), and effectively distinguishes its batch behavior from sibling tools.

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?

Provides clear context for when to use: screening a watchlist. Includes payment details (x402, cost, free calls) and input format. Does not explicitly list when not to use or compare to siblings, but the context is sufficient for an agent.

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