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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the safety profile is covered. The description adds non-obvious behavioral context beyond that: the credential requirement and the mandatory BEON PASS approval gate. It does not spell out what specifically gets overwritten or the reversibility of changes, keeping it below 5.

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?

Three tight sentences with the action front-loaded and prerequisites trailing, which is a sensible ordering. Nothing is wasted, though the terse style leaves room for a bit more density without bloat.

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 12-parameter non-idempotent mutation with no output schema, the description omits how nine parameters (including both required keys and the approval identifiers) are supplied or sequenced. The credential and approval notes help, but an agent still lacks enough to invoke this correctly end-to-end.

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 the full burden, yet it only names three of twelve parameters (public, allowed_mime_types, file_size_limit). Required parameters bucket_id and project_ref, plus the whole beon_* approval/credential family, remain entirely unexplained in both schema and description.

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 a specific verb (Change) plus resource (bucket) and enumerates the mutable attributes (visibility, MIME types, size limits), which clearly separates it from create/delete/list storage bucket siblings. It stops short of explicitly naming those siblings, so an agent must infer the distinction.

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 two concrete preconditions for use: a private project credential is required, and the user must approve the exact request in BEON PASS before execution. That gives clear invocation context, but there is no guidance on when to pick this over alternatives or any exclusions.

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