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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds the project scope and indexing-status output, but does not disclose limits, ordering, or filtering behavior; with annotations carrying the main burden, this is adequate but not rich.

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 a single short sentence with no filler. The core operation and output focus are front-loaded, making it easy for an agent to parse quickly.

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 one-parameter, read-only list tool with an output schema and strong annotations, the description is largely sufficient. It could clarify whether all videos are returned at once or note when to prefer vivu_search_videos, but these are minor gaps given the available structured context.

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 only parameter, project_id, is fully described in the schema with 100% coverage. The description's phrase 'in a cloud project' lightly reinforces the parameter's role, but it does not add substantive semantics beyond the schema's own description.

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 a specific operation ('List'), a resource ('videos'), and a distinguishing detail ('indexing status') scoped to a cloud project. It is concrete and not a tautology, but it does not explicitly contrast with sibling tools like vivu_search_videos or vivu_get_video_summary, so it stops short of full differentiation.

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 implies usage: call this to list videos in a project. However, it provides no explicit guidance on when to choose this tool over vivu_search_videos or vivu_get_video_summary, and it offers no exclusions or alternative routing.

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