x402_market_pulse

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

Describes the tool as a read-only operation that refreshes ~3x/day, sourced from Stride20k, with no payment required. No contradictions with annotations (none provided); adds context beyond basic schema.

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?

Single paragraph front-loads key benefit (free, no wallet needed), lists data types concisely, and includes technical details (refresh rate, source, endpoint). Every sentence earns its place.

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 zero parameters and no output schema, the description covers essential behavioral aspects (what data, how fresh, source). Could optionally mention return format, but not necessary 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, so baseline score of 4 applies. Description adds no parameter info but is not needed.

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?

Clearly states it provides a 'live x402 market feed for agents' and enumerates specific data categories (ecosystem snapshot, service listings, deltas, npm trends, protocol releases), making it distinct from sibling tools.

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 notes it is free and requires no wallet, which implies usage when no financial transaction is needed, but does not provide guidance on when to use this tool versus alternatives like crypto_price or news_tech_pulse.

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