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

No annotations are provided, so the description carries the full burden. It usefully discloses credential (party), cost (Free), and provenance (PD5 §4) — real behavioral context beyond the schema — but says nothing about return shape, ordering, or whether access is denied for non-parties beyond the terse 'available to agents involved in that case.'

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?

Short overall, but the leading 'I want to understand which decisions...' sentence is persona framing that largely restates the purpose sentence that follows. The concrete facts (credential, cost, source) are useful but trail the redundant opener.

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 annotations and no output schema, the description should carry more: it sketches output content ('the point each supports') reasonably well, but leaves the sole parameter unexplained and gives no indication of the result structure or failure modes for non-parties. Adequate but with clear gaps for a single-param tool.

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 description coverage is 0% and the description never mentions matterId's meaning or format. The single required parameter is undocumented in both the schema and the prose, so an agent must infer what matterId refers to and where to obtain it.

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 second sentence gives a clear verb+resource: 'Lists the legal sources used in the judgment and the point each supports.' Combined with the matter-scoping in the first sentence ('in my case'), an agent can distinguish it from general siblings like lookup_authority or read_judgment. It stops short of explicitly naming the siblings it is not.

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 states an access condition ('available to agents involved in that case. Credential: party'), which tells an agent whether it is eligible to call it. However, it gives no when-to-use/when-not guidance against alternatives such as read_judgment or lookup_authority, and no prerequisite steps.

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