file_entropy_visual

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

With no annotations, the description must carry full burden. It states the output is an ASCII bar chart and hints at detecting hidden data, but does not describe the output format in detail (e.g., how Y-axis is scaled, whether it returns a string or prints). It also does not mention any side effects (though likely read-only).

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?

Two sentences with no wasted words. Front-loaded with the core purpose and followed by a brief rationale. Every sentence earns 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?

Given no output schema, the description should detail the output more. It says 'text-based bar chart' but doesn't specify if it's printed or returned, or how to interpret the axes. For a visualization tool, this leaves some ambiguity for an AI agent.

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 baseline is 3. The description adds context for the overall purpose but does not elaborate on parameters like width or block_size beyond what the schema already provides. The defaults are in schema, so the description adds minimal parametric insight.

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 it is an 'ASCII entropy visualization of a file' that 'renders a text-based bar chart'. It specifies the verb 'renders' and resource (entropy visualization), and distinguishes it from other entropy tools like file_entropy which likely provides a single numeric value.

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 explains when to use it: 'making it easy to visually spot high-entropy regions that may contain hidden data, encryption, or compression.' It gives a clear use case but does not explicitly state when not to use it or suggest alternatives, though the context implies it is for visual inspection.

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