Run an unpaid Coinbase/CDP x402 configuration preflight before an agent spends: required checks, simulation verdict, warnings and payment requirements.
| Name | Required | Description | Default |
|---|---|---|---|
| method | No | ||
| resource | Yes | ||
| timeoutMs | No |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations are empty, so the description carries the full burden of behavioral disclosure. The description mentions 'unpaid' and 'preflight,' implying no payment is made and likely no side effects. It also lists 'simulation verdict,' which suggests a safe, non-destructive action. However, it does not explicitly state that the tool is read-only, makes no external mutations, or has no side effects. It also doesn't mention authentication, rate limits, or error behavior. Given the safety of a preflight operation, a 3 is fair—it adds some behavioral context but not full transparency.
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 one sentence and front-loads the primary action ('Run an unpaid Coinbase/CDP x402 configuration preflight'), then lists output elements. There is no waste or redundancy. It could be slightly better structured by separating the parameter details, but as-is it is concise and efficient. Given the lack of parameter docs, it is still appropriately sized for a 3-parameter tool.
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?
The description is incomplete for an agent to call the tool correctly. It does not explain the meaning of the three parameters, the expected output format beyond a high-level list, or any constraints like authentication or rate limits. With a 0% schema description coverage and no output schema, the description must supply this context, but it does not. The tool appears simple, but the missing parameter semantics make it insufficiently complete.
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 description coverage is 0%, meaning the input schema has no descriptions for 'method,' 'resource,' or 'timeoutMs.' The tool description does not compensate: it explains the tool's purpose but offers no meaning for the parameters. An agent must infer that 'resource' is the x402 endpoint, 'method' is the HTTP method to simulate, and 'timeoutMs' is the request timeout. This is a significant gap for a 3-parameter tool with zero schema documentation, so the description adds minimal value beyond the parameter names.
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 identifies the action: run an unpaid x402 configuration preflight. It names the specific protocol (Coinbase/CDP x402) and the context (before an agent spends), and lists the output components (required checks, simulation verdict, warnings, payment requirements). It is specific enough to distinguish from sibling tools, which are mostly read-only blockchain queries or verification tools. However, it does not explicitly differentiate itself from a hypothetical similar preflight tool, so it gets a 4 rather than a 5.
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 says to run this 'before an agent spends,' which provides clear guidance on when to use it. It implies a trigger condition (prior to spending) and the tool's role as a safety check. It does not explicitly state when not to use it or name alternatives, but the context is clear enough to suggest the intended invocation point. This meets the 'clear context, no exclusions' bar for a 4.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Most tools have clearly distinct targets—Base reads, web research, opportunity search, and gating—but a few overlapping 'verify' and 'gate' tools could blur boundaries for an agent, especially verify_commercial_truth and verify_deadline_eligibility. Descriptions do differentiate them, so misuse is unlikely with careful prompting.
All names use snake_case and are internally consistent for the base_* cluster, but outside of that, some tool names are nouns while others are verbs (e.g., domain_intelligence, web_read, vendor_verification). This mixed convention makes it less predictable than a strict verb_noun pattern.
21 tools is on the high side of the comfortable range, but the server covers a broad scope: blockchain reads, web/content intelligence, opportunity discovery, commercial verification, and preflight gates. Each tool has a distinct role, though a few feel marginal rather than essential for a leaner setup.
The set covers the main workflows you'd expect: reading blockchain state, researching and verifying web snippets, tracking opportunities, and blocking bad actions with a fee preflight. The notable gap is an explicit execution step—there is no actual sending, bidding, or payment action beyond the x402 preflight. That is a reasonable boundary for a read/preflight tool suite.