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

Annotations declare readOnly, idempotent, non-destructive, closed-world, so the safety profile is already covered. The description adds the historical range (back to June 2005) and default behavior, which is useful operational context, but omits return format details or any rate/availability constraints.

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 filler, and the default/range information is front-loaded. The example snippets are compact and directly actionable.

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 single optional-parameter read-only tool with full schema coverage and no output schema, the description supplies the necessary default behavior, historical range, and usage examples. It could be stronger with a brief hint about the return structure or pagination, but is largely complete.

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 description coverage is 100% and fully documents the single maxLength:7 month parameter in YYYY-MM format. The description's examples reinforce this but add no new syntax or constraint beyond what is already in the schema; baseline 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 states a specific resource and its scope (employment and family final action and dates for filing charts) and notes the default (newest) and range (back to June 2005). It doesn't differentiate from the sibling tools like queue_status, but those appear to be distinct resources enough that confusion is unlikely.

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?

It provides example invocations that clarify when to pass no arguments versus a month. However, it doesn't articulate when an agent should use this tool versus alternatives like queue_status or estimate_decision, leaving usage inferential.

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