string_reverse

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

No annotations are provided, so the description carries the full burden. For a pure deterministic transformation the behavior is largely self-evident, but it omits any note on edge cases (e.g., Unicode/grapheme handling) that a careful agent might want.

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?

A single, front-loaded sentence with zero waste. It is appropriately sized for a trivial tool, though it borders on under-specification rather than true 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?

An output schema exists, so return values need not be explained. For a deterministic one-parameter function with no annotations, the description is minimally sufficient but adds no behavioral or edge-case context.

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 0% and the single required parameter 'text' is undocumented in the schema. The description's 'a string' loosely maps to it, but adds no format or constraint detail; the parameter is nonetheless self-evident for such a trivial tool.

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?

States a specific verb (reverse) and resource (string), which is unambiguous and distinguishable from siblings like string_uppercase and string_lowercase. However, it offers no explicit sibling differentiation or scope notes.

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?

Provides no when-to-use or when-not-to-use guidance. The purpose is self-evident for a trivial transformation tool, but the description does nothing to route the agent among the many other string siblings.

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