veroq_market_summary

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

With no annotations provided, the description carries the full burden. It discloses the return format (price, change, change percent) and cost (1 credit), which is helpful. However, it does not mention potential rate limits, data freshness, or any side effects; still, the provided details are sufficient for safe use.

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 extremely concise at four short sentences, with the purpose front-loaded. Every sentence adds value: purpose, usage, return format, cost, and example. No fluff.

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?

Given the tool's simplicity (no parameters, no output schema), the description is nearly complete. It lists the indices and return fields. A slight improvement would be to mention that the data is a snapshot, but this is not critical. It adequately prepares the agent for invocation.

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?

No parameters exist, and the input schema has 100% coverage. The description explicitly states 'No parameters needed', which reinforces the schema and requires no further explanation.

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 retrieves current values for major market indices (S&P 500, Nasdaq, Dow Jones, VIX). It uses a specific verb 'Get' and lists the indices, making the purpose unambiguous and distinct from sibling tools like 'veroq_crypto' or 'veroq_commodities'.

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?

Explicitly includes 'WHEN TO USE: For a quick check on how the overall market is doing. No parameters needed.' This provides clear context and tells the agent exactly when to invoke this tool versus alternatives, with no parameters to configure.

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