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

Annotations already cover readOnlyHint=true and openWorldHint=false, so safety is handled. The description adds real value beyond them by disclosing ordering (newest first), the org scoping limitation, and the exact row fields returned (id, filename, mimeType, size, storagePath, bucket, tags, uploadedBy), which matters because there is no output schema.

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?

Front-loads the core action, then filters, then return fields, then cross-tool routing - a logical progression with no filler. Slightly dense, but every clause (ordering, field list, downstream routing) carries information an agent needs.

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 output schema, the description fully enumerates the returned columns and their downstream consumers, plus ordering, filtering options, and scope limits. Nothing needed to call this correctly is 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?

Schema description coverage is 100%, so every parameter (page, search, tagIds, pageSize, mimeCategory) is already documented, and the enum is spelled out. The description echoes the mimeCategory use-case mapping that the schema already contains, adding little net-new semantics. Baseline 3 is appropriate.

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?

States a specific verb (list) and resource (files) with scope (caller's active organization) and ordering (newest first). An agent can immediately distinguish this listing tool from siblings like list_jobs or get_file_download_url.

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?

Gives clear context for use and routes the agent downstream: storagePath feeds speaker_separation/audio_redaction/bg_remover, and id pairs with get_file_download_url. It also states a negative constraint (does not list another organization's files) but stops short of explicit when-not alternatives among the sibling listing tools.

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