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

With no annotations, the description carries full responsibility for behavioral disclosure. It only describes table content, not behavior: no read-only guarantee, output shape, or filtering behavior beyond the vague notion of a 'full table.'

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 run-on, awkward sentence that is hard to parse, and the title 'The comparison table' already repeats the obvious noun. A clearer front-loaded rewrite such as 'Returns a comparison table showing every option on every criterion' would serve an agent much better.

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 single-parameter tool this is minimally viable, but it is incomplete: it does not state what the rows and columns are, what values the option parameter should take, or how this relates to the sibling comparison tools. No output schema exists to fill those gaps.

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 single optional parameter is already fully documented in the schema with 'one option's name, else all.' The description's 'full table' loosely supports the else-all default, but it adds no additional syntax, format, or semantic detail, so the baseline of 3 applies.

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 gestures at a full comparison table of options against criteria, which is a recognizable purpose, but it lacks an explicit verb and the phrase 'what each does comparison' is ungrammatical. It does not clearly differentiate the tool from sibling tools like compare_criteria or compare_options.

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?

There is no guidance about when to use this tool versus alternatives such as compare_criteria or compare_options. An agent cannot tell whether this is the general table and the siblings are filtered views, or some other relationship.

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