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

With no annotations, the description carries the burden well by disclosing the stress conditions, the returned flag levels, the fired rules, and the episode start day. It also mentions access-tier restrictions and scope, though it does not explicitly state read-only behavior, rate limits, or latency.

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?

The description is front-loaded with the purpose, then efficiently packs in criteria examples, return details, scope, and access requirements. Every phrase contributes useful information without filler.

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?

It is nearly complete for a read-oriented analytical tool whose output schema exists: the description explains what stress means, what is returned conceptually, and who can call it. Minor omissions like data freshness or rate limits keep it from a 5.

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 the parameter is already fully documented as an optional ISO 4217 code. The description's phrase 'One currency or all' aligns with the schema default but adds no further semantics beyond what is already structured.

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 states a specific resource and output: per-currency none/watch/alert stress flags from street-market conditions. It clearly distinguishes this signal-monitoring tool from siblings like get_street_rate or get_rate_history by focusing on early-warning stress episodes rather than raw rates.

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?

It gives clear usage context as an early-warning stress monitor and notes that it works for one currency or all, plus the Pro/Enterprise key requirement. It does not explicitly name when to choose a sibling tool or give exclusions, so it falls short of full routing guidance.

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