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

Annotations already cover safety (readOnly, idempotent, non-destructive), and the description adds genuinely new context: no API key required, results are newest-first, and removed cases carry a removed_from object. It omits pagination/rate behavior beyond the limit param, keeping it just short of 5.

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?

Three tight sentences, front-loaded with the core verb and resource; each sentence adds something (ordering, no key, removed_from shape). No filler or repetition.

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?

With no output schema, the description usefully names a return field (removed_from) and states auth cost (no API key), which is enough for an agent to call a simple 0-required-param list tool. Minor omission: no note on default ordering interaction with filed_after or total result size.

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 the schema already documents all four parameters including the check_removal cost trade-off. The description only echoes the district filter and references the removed_from output, adding little on parameter meaning beyond the schema.

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?

States a specific verb and resource ("List recent US federal civil lawsuits"), plus ordering (newest first) and scope (one district). It does not explicitly contrast with the sibling federal_civil_search, leaving the recent-vs-search distinction to be inferred from the names.

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 word "recent" implies the use case, and the optional district filter is stated, but there is no explicit when-to-use guidance or exclusion naming federal_civil_search as the alternative for non-recent or query-based lookups.

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