get_parallel_citations

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

With no annotations provided, the description carries the full burden of behavioral disclosure, and it handles this well. It explains the output ordering (Redbook order), the completeness of the returned set, and a subtle non-obvious behavior: synthetic back-assigned [YYYY ND nnn] identifiers are returned separately and never folded into the formatted citation. This is exactly the kind of behavioral detail an agent needs.

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 compact and efficiently structured: the first sentence states the core behavior, the second provides the practical use case, and the third flags an important edge-case behavior. Every sentence earns its place, with no redundancy or filler.

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-parameter tool with an output schema, the description is complete enough for an agent to call it correctly. It covers acceptable input forms, the returned data's scope and ordering, and the unusual synthetic-identifier behavior. No critical operational information appears to be missing.

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 fully documents the single 'citation' parameter, so the baseline is 3. The description adds meaningful semantics by clarifying that the parameter can accept 'any one citation' in formats like '44 N.W. 301' or '1 N.D. 1', and even a case name, going beyond what the schema literally states. This earns a 4.

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 action — returning the complete parallel-cite set for a case in Redbook order — which clearly identifies the tool's function. It does not explicitly name or contrast sibling tools, so it falls just short of full differentiation, but the function is unambiguous and distinct from related tools like verify_citation or get_pinpoint.

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 intended use case is clear: feed any citation or case name to obtain parallel cites, specifically to auto-fill missing neutral or N.W. parallels in a draft. It provides solid contextual guidance but does not explicitly state when this tool should not be used or which alternative tool to pick instead, so it stops short of full routing guidance.

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