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

With no annotations, the description carries the full burden, and it does disclose one genuinely non-obvious trait: the call costs 100 sats via L402, which implies a payment/auth step the agent must be prepared for. However, it says nothing about the outcome semantics (does it block, warn, or return a verdict?), whether the operation is read-only, or latency/failure behavior.

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?

A single dense sentence with the function stated first and the detection targets and cost following. Every clause carries information; there is no filler or redundant restatement of the name.

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 two-parameter tool this covers purpose and cost well, but with no output schema present the description should at least characterize the return value (a verdict? a boolean? a report?) so the agent knows what to do with the result. The payment model is mentioned but recurring-per-call versus one-time is ambiguous.

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% for both parameters, so the schema already documents 'payload' and 'action_type' fully. The description adds no parameter-level detail (no examples of accepted action_type values, no size limits on the payload), so baseline 3 applies.

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 names a specific function (pre-execution security gate) and enumerates exactly what it detects: prompt injection, wallet drain, and key exfiltration. That is far more precise than a tautology, but it never differentiates itself from the nearby risk-oriented siblings (mev_risk, solana_risk, contract_audit), leaving an agent to infer the boundary.

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 phrase 'pre-execution security gate' clearly signals the context of use: invoke it before running a command, script, or prompt. No alternatives exist among the siblings for this kind of payload inspection, so no exclusion routing is needed, but the description stops short of explicitly stating prerequisites or when NOT to bother calling it.

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