Get a mod's newest file, by a stated definition of newest

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

With no annotations provided, the description carries the full behavioral burden, and it does so thoroughly. It declares Read-only, explains what every answer restates, notes the file_length_bytes caveat, and explains the deliberate refusal to invent release-type labels. There is no annotation to contradict.

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 dense but well organized: it front-loads the core question, then explains each selection mode and the caveats. Some internal references like 'ADR-002 §14.3 U7' add context but are slightly esoteric, keeping this from a perfect score.

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?

Given no output schema, the description explains what the answer will contain: the ordering, default application, filter, candidate count, and candidate source. It also draws attention to file_length_bytes and file_name for content-pack inspection, so an agent has enough to invoke and interpret the call correctly.

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?

Input schema coverage is 100%, so baseline 3 applies. The description reinforces parameter requirements but largely restates schema details such as 'Required when selection is...' and 'pass the integer you mean.' It adds useful context but does not need to compensate for missing 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 opens with the exact question the tool answers and identifies the resource: a mod's newest file by a defined notion of 'newest.' It explains that there are three selection definitions and names the default, so an agent can clearly distinguish this from list_mod_files or get_mod_file.

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 gives explicit guidance on when to use the default versus the other selection variants, stating 'pass another variant only when that is the question you mean.' It also documents the required conditions for the non-default variants and explains why a named release-type filter cannot exist.

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