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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false, covering safety. The description adds context like 'stable anonymous' and 'accountless', which is useful but does not disclose behavioral details such as pagination, response ordering, or rate limits. With annotations present, this is adequate but not rich.

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 two sentences, front-loaded with the action and resource, and contains no fluff. Every word adds value, and it is easy to scan.

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 simple read-only browsing tool with 3 optional parameters and no output schema, the description provides enough context for initial selection: what it does and when to use it. However, it omits mention of response format or pagination behavior, which would be helpful but is not critical given the parameters imply output shape.

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 input schema provides 100% coverage with descriptions for all three parameters (limit, include_trust, include_schemas). The tool description does not add additional parameter-level semantics beyond reinforcing its catalog role, so it meets the baseline but does not exceed it.

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 tool name and description clearly state the action ('Browse') and the resource ('stable anonymous x402 services' on x402.agoragentic.com). The phrase 'accountless buyer catalog for bounded paid resources' adds scope, but it does not explicitly contrast with sibling tools like agoragentic_search or agoragentic_categories, so it falls short of full differentiation.

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 includes a direct usage instruction: 'Use this as the accountless buyer catalog for bounded paid resources.' This provides clear context for when to apply it, but it lacks explicit exclusions or references to alternative tools, preventing a 5.

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