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

The annotations already establish that this is a safe, read-only, idempotent operation. The description adds meaningful scope-dependent behavior, especially that processing shows in-flight uploads and that stats/counts return aggregate totals rather than document lists.

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 front-loaded with the core purpose, followed by a dense but useful breakdown of scope modes. There is little wasted text.

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 read-only listing tool with annotations covering safety, the main gap is pagination: skip and limit are undocumented even though they control list size. The scope behavior is well covered, but the parameter documentation is not complete enough to be fully self-contained.

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%, so the description carries more weight. It explains the critical scope enum and identifies name, season, year, and type as filters, but it does not explain skip/limit pagination behavior or provide format details for type, season, or year.

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 verb and resource: 'List the documents the user uploaded.' It is clear what the tool does, though it does not explicitly contrast itself with siblings such as find_documents or search_library.

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 explains what each scope value returns (processing, stats, counts, quiz_sources), which gives useful mode-selection guidance. However, it does not explicitly say when to use this tool instead of sibling tools like find_documents or search_library.

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