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

With no annotations provided, the description carries the full disclosure burden, yet it says nothing about how tabs are handled (e.g. leading-only vs all occurrences), default tab width, or which of the duplicate parameters takes precedence. It adds no behavioral context beyond the bare operation name.

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?

It is a single short, front-loaded sentence, which is efficient. However, the 'Tab To Space:' prefix merely duplicates the tool name before the real content, so a portion of the text does not earn its place.

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 tool with four ambiguous, non-required parameters, no annotations, and no output schema, the description is inadequate. It leaves unresolved which parameter supplies the input and whether width or tabWidth controls conversion, gaps an agent cannot fill from the terse schema 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?

Schema coverage is 100%, so the baseline would be 3, but the schema descriptions are tautological ('Text to process', 'Width to process') and the parameter set is confusing: text/input appear to be duplicates and width/tabWidth likewise. The description does nothing to disambiguate these overlaps or explain expected formats.

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 states a clear verb and resource ('Convert tab to space'), which is unambiguous on its own. However, it is essentially a restatement of the tool name 'Tab To Space' and provides no differentiation from the sibling x402-space-to-tab or other whitespace tools.

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 guidance is given on when to use this tool versus alternatives. The obvious counterpart x402-space-to-tab is never mentioned, and there is no indication of input requirements or context of use.

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