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

Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true. The description adds info about batch execution via notebook_ids and source_ids, which is useful but not extensive. No contradictions with annotations.

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 with no redundancy. The first sentence is brief but vague; the second adds batch support. Could be more direct, but length is appropriate.

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?

Given no output schema and 0% schema description coverage, the description is too sparse. It fails to explain what is returned, the role of format, or the relationship between singular and plural IDs. A more complete description would cover these gaps.

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 must compensate. It mentions batch support for arrays, but does not explain the singular counterparts (source_id, notebook_id) or that they are required. The format enum is in the schema but not elaborated. The description adds minimal value over the schema.

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 states 'Texto completo indexado de uma fonte' which indicates it retrieves full text of a source. Although no explicit verb like 'get' or 'retrieve' is used, the context of sibling tools (e.g., notebooklm_source_get for metadata) implies it fetches content. Distinguishes from siblings by being the only one providing full text.

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?

No guidance on when to use this tool versus alternatives. The description only mentions bulk support with arrays, but does not explain when to prefer this over notebooklm_source_get or other tools. No when-not or exclusion criteria provided.

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