json_to_xml

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

With no annotations, the description must fully disclose behavior, but it only states the cost. It fails to mention input requirements, output format, error conditions, size limits, or any side effects. This is a critical omission for a conversion tool.

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 short but wasteful, using its limited space on a vague category name and pricing while omitting all operational details. This is under-specification, not effective conciseness.

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 the absence of annotations, output schema, and meaningful parameters, the description is severely incomplete. An agent cannot determine how to format inputs, what the output looks like, or how to handle failures, making the tool effectively unusable from this documentation alone.

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 schema exposes only a generic 'params' object with a placeholder description, giving the agent no actual parameter names or formats. The tool description adds nothing about what keys to use (e.g., 'json', 'input'), leaving the invocation entirely ambiguous despite the seemingly '100%' schema coverage.

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 merely restates the tool name ('json to xml') and adds a vague category label ('JSON & Data tool'). It lacks an explicit verb like 'converts' and does nothing to distinguish this from sibling conversion tools such as json_to_yaml or convert_json_to_csv.

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?

No usage guidance is provided. The description mentions only the x402 cost, which is irrelevant for deciding when to use this tool versus alternatives. There are no preconditions, exclusions, or pointers to sibling tools.

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