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

With no annotations, the description does earn credit for disclosing that the call is paid ($0.50 USDC on Base via x402) and that a deterministic $XMR subaddress is involved — real behavioral context an agent cannot get from the schema. It does not state whether the audit is read-only, what the report contains, or whether payment failure aborts the call.

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?

Two short clauses, front-loaded with the core audit purpose and followed by the cost. The '+ deterministic $XMR settlement subaddress' fragment is dense jargon that costs clarity, but nothing is wasted or buried.

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?

One-parameter tool with no annotations and no output schema, so the description carries the full burden. It covers cost and one artifact but never says what the audit returns (a score? findings list?) or how it differs from the several privacy siblings. Adequate to invoke, thin for deciding whether to.

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% ('0x EVM wallet address'), so the schema already carries the parameter meaning and baseline is 3. The description's 'Base/EVM wallet' wording reinforces but does not extend it — no format, validation, or chain-ambiguity guidance is added.

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+resource: an on-chain Base/EVM wallet deanonymization and hygiene audit. The 'Base/EVM' qualifier implicitly separates it from the Monero-focused sibling, but it never explicitly names monero-opsec-audit, full-privacy-sweep, or opsec-score as alternatives. The trailing '+ deterministic $XMR settlement subaddress' muddies what the tool primarily produces.

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?

Usage is only implied by the resource type — an agent can infer 'call this to audit an EVM wallet address'. There is no when-to-use/when-not guidance and no routing to the many overlapping privacy siblings (full-privacy-sweep, opsec-score, monero-opsec-audit). The payment note signals a precondition but not a selection rule.

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