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

No annotations are provided, so the description carries full responsibility. It discloses the tool returns a structured pack with specific components and a link. It does not mention rate limits, processing time, or authentication needs, but for a read-only generation tool, the transparency is adequate. A slight gap is the lack of statement about non-destructiveness.

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 two sentences long, with the first sentence front-loading the purpose and trigger, and the second detailing the return value and format guidance. Every sentence serves a clear purpose with zero redundancy.

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 the absence of output schema and annotations, the description adequately covers purpose, when to use, key parameter behavior, and return structure. It could include a note about the full link being accessible on vozclara.app, but overall it is sufficiently complete for an agent to invoke the tool 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 coverage is 100%, so baseline is 3. The description adds value by explaining when to use `obsidian` format and the effect of different `depth` values (e.g., `short` = one-paragraph summary). This provides context beyond the schema's simple enum descriptions, warranting a 4.

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 generates a Knowledge Pack from a YouTube video, listing the returned fields (title, summary, key ideas, link). It unambiguously defines the verb and resource, and implicitly distinguishes from any potential sibling by focusing on YouTube videos.

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?

The description explicitly tells when to use: 'when the user asks for a summary, key ideas, or study material from a YouTube video.' It also provides specific advice for the `format` parameter, guiding agents to use `obsidian` for vault-saving requests. No sibling tools exist, so exclusion guidance is unnecessary.

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