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

The annotations already declare it as read-only, non-destructive, and closed-world, and the description adds useful behavior: newest-first ordering, search semantics, and the 5/20 limit rule. It does not contradict any annotations, though it could say more about auth scope or pagination beyond the max limit.

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 front-loaded with the core list operation and returned fields, then the use case, then parameter behavior. It is dense but every sentence contributes useful information.

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 list tool with annotations and no output schema, the description covers scope, return fields, ordering, search behavior, and limit defaults. An agent has enough information to select and invoke it correctly.

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 both parameters are already documented in the input schema. The description repeats the search and limit semantics but adds little beyond what the schema provides, matching the baseline 3 for high-coverage schemas.

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 gives a specific verb and resource ("List your recent audio takes") plus scope and ordering ("newest first"), and it enumerates the returned fields. It does not explicitly distinguish this tool from nearby siblings such as list_generations or search_my_library, so it falls short of a 5.

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 provides clear usage context: find "the take from earlier" or "the newest line" without asking for ids, and search matches spoken words. It does not state when not to use it or name alternative tools, so it is a strong 4 rather than a 5.

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