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

With no annotations, the description carries the behavioral disclosure burden. It conveys that the tool performs a read-style comparison and returns the full table, which is useful. However, it does not mention response shape, whether the table is filtered by the option parameter, or any limitations, and one clause ('compared on what actually differs comparison') is confusing rather than clarifying.

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 short, and the core idea is front-loaded, but the trailing phrase 'compared on what actually differs comparison — the full table' is syntactically broken and confusing. This structural flaw undermines clarity more than it saves space.

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?

The tool is simple with one optional parameter and high schema coverage, so the description does not need to be extensive. Still, with no output schema and no annotations, the description should more clearly state what the returned table contains and how the optional option parameter affects it; the malformed wording leaves 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 input schema already documents the 'option' parameter with 'one option's name, else all' at 100% description coverage. The tool description adds no parameter-level detail beyond the general notion of 'each option,' so the baseline score of 3 is appropriate.

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 identifies a specific resource — a comparison table covering every option's value on every criterion of the four call answering models — and indicates the tool's job is to compare. It does not explicitly differentiate itself from siblings like compare_criteria or compare_options, so it stops short of a 5.

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 compare_table versus the sibling comparison tools, nor any exclusions or alternative routing. The phrase 'the full table' hints at scope but does not tell an agent when this tool is preferred over compare_criteria or compare_options.

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