json_format

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It correctly states the two modes (format/minify) but does not disclose error handling for invalid JSON, default behavior beyond schema defaults, or other edge cases. The behavior is clear but not rich in detail.

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?

One short sentence, immediately front-loaded, with zero wasted words. It communicates the essential functionality efficiently and is appropriately concise for a simple 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 tool is simple, and the combination of description and full schema coverage provides enough information for an agent to invoke it correctly. No output schema exists, but the return value (formatted/minified string) is obvious from the purpose. The only minor gap is the lack of explicit error behavior for invalid JSON.

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 100%, with all three parameters fully described. The description adds no parameter-specific information beyond what the schema already provides, so the baseline score of 3 is appropriate.

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 the tool's purpose: to format (pretty-print) or minify JSON. This is a specific verb+resource combination that clearly distinguishes it from sibling tools like json_diff or sql_format.

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 implies usage (formatting/minifying JSON) but does not provide explicit when-to-use or when-not-to-use guidance, nor does it mention alternatives. It is adequate for a simple utility but lacks proactive differentiation.

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