get_market_summary

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

No annotations are provided, so the description must disclose behavior. It states the tool returns a market overview but does not mention read-only nature, authentication requirements, rate limits, or whether it aggregates from other endpoints. The behavioral profile is partially transparent but lacks important details.

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 two sentences with no wasted words. The first sentence states function, the second adds a use case. It is front-loaded and to the point.

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?

Although the tool has no parameters and no output schema, the description does not clarify the return format or structure. It mentions components but not how they are presented (e.g., JSON object). For a tool used as a daily briefing, more detail on output would improve completeness.

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?

The tool has no parameters, so the description does not need to add parameter semantics. Schema coverage is 100% (trivially). Baseline expectation is met excellently.

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 clearly states the tool returns a market overview including top 5 cryptos, major forex rates, and Fear & Greed Index. It distinguishes itself from sibling tools (get_fear_greed_index, get_forex_rate, get_top_cryptos) by being a composite, making purpose unambiguous.

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 description mentions 'Great for a quick daily briefing,' providing a clear use case. It implies this tool is for broad overviews rather than detailed data, but does not explicitly state when to avoid it or mention alternatives. Given sibling tool names, the context is sufficient.

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