source_add

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

No annotations provided. Description only states the source will be processed and made available, but does not mention mutation, side effects, or permission requirements, leaving significant behavioral gaps.

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 concise sentences that front-load the core purpose. No unnecessary words.

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?

While the description covers the basic operation and supported types, it does not explain the return value or what happens after processing. With no output schema, this leaves the agent guessing about the result.

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 already documents all 5 parameters. Description adds value by clarifying that URLs support web pages and YouTube, and that the tool accepts text content, which is not fully captured in 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 clearly states the tool adds a source to a NotebookLM notebook and lists supported types (URLs, web pages, articles, YouTube videos, plain text). This distinguishes it from sibling tools like notebook_list or source_list.

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 explicit guidance on when to use vs alternatives, but the verb 'add' and resource 'source' make it clear. However, description lacks exclusions or prerequisites.

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