Brand Memory files

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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds the read-scope auth requirement, which is useful, but the opaque 'completion ring' and lack of any note on what is returned or how the listing behaves leave the behavioral picture thin.

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 short sentences with no filler and the resource named up front. It is concise, though the brevity shades into under-specification rather than crispness.

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?

An output schema exists, so return values need not be explained. However, for a zero-param list tool sitting among many list/read siblings, the description should orient the agent on when this file tree is the right source; that routing context is absent, leaving it only minimally complete.

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?

The tool takes zero parameters, so per the rubric the baseline is 4. The description correctly adds nothing about parameters, and nothing is missing on this dimension.

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 conveys that this returns Brand Memory's file list, which is a recognizable resource, but the phrase 'with the completion ring' is undefined jargon that leaves the actual behavior ambiguous. It does not clearly differentiate from brain_read or assets_list, so an agent cannot route reliably without opening the schema.

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?

'Needs the read scope' states an authorization prerequisite but gives no when-to-use guidance and names no alternative. With siblings like brain_read and assets_list, the agent gets no help deciding when this file-tree listing is the right call versus those.

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