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

With no annotations, the description carries the burden of communicating observable behavior. It describes the output content well: every option's value on every criterion, the full table. It does not explicitly discuss read-only behavior, default handling when the option parameter is omitted, or result formatting, but the description is sufficient for a simple lookup-oriented tool.

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 focused sentence with no wasted words. The trailing 'the full table' is slightly redundant after 'each option's value on every criterion', but it works as an em-dashed clarification and makes the tool's scope easy to scan.

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 tool with one optional parameter, no output schema, and no annotations, the description is nearly complete: it explains what the agent will get. The schema fills the remaining invocation detail about the option parameter. Explicit sibling-routing guidance would be the main enhancement, but it is inferable from the description.

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 already documents the single parameter with 100% coverage, so the tool description does not need to add much. The description's phrase 'the full table' loosely aligns with the schema's 'else all' default, but it adds no new parameter-level meaning. This matches the baseline for high schema coverage.

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 identifies the resource: the full comparison table of every option's value on every criterion for the UK trades job management software comparison. It lacks an explicit operative verb such as 'returns' or 'fetches', but the meaning is unambiguous. It is also distinct enough from siblings like compare_criteria and compare_options, which likely show narrower views.

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 implies that this tool is the right choice when the agent needs the complete cross-product of options and criteria. However, it does not explicitly state when to prefer compare_table over compare_criteria or compare_options, nor does it mention any exclusions or alternatives.

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