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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered; the description adds a materially important behavior the schema does not carry: the call costs $0.01 USDC on Base via x402, which an agent must know before invoking. It still omits freshness/latency, what happens if payment fails, and result ordering, but the paid-call disclosure is a genuine value-add.

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 sentences, zero filler, with the content scope front-loaded and the payment constraint trailing as a secondary but necessary fact. Nothing repeats the title or restates the schema.

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, 3 undocumented parameters, and no routing guidance against four overlapping siblings, the definition does not give an agent enough to pick this tool confidently over search_notices or notices_digest. The payment note is helpful but the selection and parameter story remains incomplete.

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 0%, so the description carries the full burden and says nothing about limit, topic, or jurisdiction. The two enum parameters are partly self-documenting, but the description never explains the meaning of 'latest' in terms of limit default, ordering, or what jurisdiction filtering excludes — a clear gap against the 0% coverage signal.

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 resource (latest APAC financial/AI/data regulatory notices) and names the actual issuing regulators (HKMA, SFC, Taiwan FSC, Japan FSA, SEBI), so an agent knows exactly what content comes back. It does not, however, distinguish itself from siblings like search_notices or notices_digest, which the "latest" qualifier only hints at.

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?

There is no when-to-use guidance and no mention of alternatives, despite four sibling tools (search_notices, get_notice, notices_digest, weekly_brief) that overlap heavily. The agent must infer from the name alone that this is a browse-latest feed rather than a filtered search or a single-record fetch.

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