slice_hex

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

No annotations are present, and the description only says 'extract a portion.' It does not disclose whether slicing is byte-based, how out-of-bounds indices are handled, or whether the operation is non-destructive. The description is too terse to meaningfully inform the agent beyond the basic operation.

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 a single, simple sentence with no filler. It is front-loaded and every word is necessary, achieving maximal 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?

For a simple utility, the description is minimally adequate, but it lacks details such as byte positioning, exclusivity of the end parameter, and the return format. Since there is no output schema, a bit more context would be helpful, though the schema covers parameters well.

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 provides 100% coverage for all three parameters (hex, start, end), so the description need not re-explain them. However, it adds no additional context about how the parameters relate to the slicing operation, keeping it at the baseline score.

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 operation (extract a portion) and the resource (hex data), which is specific to slice_hex and distinguishes it from sibling hex utilities like pad_hex or concat_hex. The verb 'extract' precisely conveys the action.

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 provided on when to use this tool versus alternatives. It does not mention exclusions, prerequisites, or when to prefer other hex manipulation tools, leaving the agent without decision support.

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