Prediction-market monitoring, AI-agent context, and recurring x402 machine checks.
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Scored across 2 tools
The two tools have clearly distinct purposes: catalog enumerates paid endpoints and the autopay preflight, while teasers provides free market previews and sanitized live-edge teasers. There is no overlap in their functionality, making misselection unlikely.
Both tool names are single lowercase nouns ('catalog', 'teasers'), following a perfectly consistent convention. While not a verb_noun pattern, the style is uniform and predictable across the set.
With only two tools, the surface feels minimal for an 'Oracle' server, even one focused solely on paid endpoint cataloging and free teasers. It is borderline acceptable for such a narrow read-only purpose but does not feel richly provisioned.
The domain appears to cover listing endpoints/preflight and showing previews/teasers, and both tools directly serve those functions. Minor gaps exist, such as no detailed endpoint information or live status endpoint, but agents can work around these with the provided catalog and teasers.
List EventEdge x402 paid machine endpoints and the free one-step autopay preflight
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of explaining behavior. 'List' implies a read-only operation and the description names the output categories, which is useful. However, it does not disclose response format, pagination, access requirements, or any edge-case behavior.
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?
A single sentence that leads with the action and names the resource types in order. Every word adds value; there is no redundancy or 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?
For a zero-parameter, no-output-schema tool, the description says enough about what will be returned: a listing of the two named categories. It could be more complete by acknowledging pricing/access implications or by routing to the sibling tool, but the simple scope makes it mostly sufficient.
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 zero parameters, so there is no parameter semantics to explain. The schema is empty and description does not need to compensate for parameter-level gaps.
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 a specific action (List) and a specific resource (EventEdge x402 paid machine endpoints and the free one-step autopay preflight). It is not a tautology and gives the agent a concrete sense of what the tool returns. However, it does not differentiate against the sibling tool 'teasers'.
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?
There is no guidance on when to use this tool versus the sibling 'teasers', no alternative mentioned, and no excluded scenarios. The description implies use when someone needs this catalog, but that is the only implicit context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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