Find better-scored alternatives to an x402 endpoint

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

No annotations, so the description carries the burden. It helpfully discloses the empty-result semantics ('nothing beats it'), which is a real behavioral trait an agent must handle. It doesn't cover ranking order, data freshness, or result shape, but the key edge case is covered.

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 short sentences, fully front-loaded, zero filler. The second sentence delivers the critical edge-case behavior without verbosity.

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?

Adequate for a 3-param read tool with full schema coverage and no output schema, but it omits what the response looks like when non-empty and how alternatives are ranked. The empty-result note is the main completeness win.

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% and all three params are fully documented in the schema, including defaults and ranges. The description adds the semantic framing (out-score, trust-score advantage) that ties the params to meaning, exceeding the baseline.

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 precise verb and resource: finding semantically similar endpoints that out-score a given one. The title reinforces it and it's clearly distinct from siblings like x402_search or x402_trust_score.

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?

Implies usage (when you want better alternatives) but never names alternatives like x402_semantic_search or x402_trust_score, nor states prerequisites such as needing the endpoint's score first. Usage is inferable but not guided.

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