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

Annotations already establish readOnlyHint=true and openWorldHint=false, yet the description adds real value beyond them: it discloses that names and contents are sealed to the workspace key, unreachable through this connection, and require the encryption password via another surface. That is exactly the kind of limitation an agent needs to avoid promising file contents it cannot deliver.

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?

Two sentences, front-loaded with what the tool returns and followed by the encryption constraint. No filler; the only inefficiency is that the opening fragment lacks a verb, making the action slightly less immediate.

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 one-parameter read with no output schema, the description covers the returned fields and the critical limitation on readable content. What is missing is any mention of result volume, ordering, or pagination across many uploaded files.

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 0% and the single required parameter request_page_id is never described. The phrase 'on a file request' weakly implies the parameter scopes to a request page, but no format, source, or lookup guidance is given, so the description only partially compensates.

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 names a specific resource (files received on a file request) and the fields returned (sizes, times, uploader emails), so an agent knows exactly what it fetches. It stops short of explicit differentiation from nearby siblings like list_request_entries or get_request_progress, which is the only gap.

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?

Usage is implied rather than stated: it's for inspecting files delivered against a file request. The second sentence does provide a partial 'do not use this for' signal by explaining that names and contents cannot be read here and must go through the Share app or CLI, but no sibling tool is named as the alternative.

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