Resume a private yt-mcp playlist

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

Annotations already signal a non-readOnly, non-idempotent, non-destructive action. The description adds a useful concurrency warning that goes beyond the annotations, but it does not explain what resuming entails in practice, such as whether it activates the plan, starts playback, or mutates saved state.

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 sentence with no filler. It front-loads the core purpose and includes the important concurrency warning, so every word earns its place.

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 only one parameter and an output schema, a short description is acceptable. However, the lack of any playlist_id guidance and any explicit sibling differentiation leaves the definition minimally complete for an agent deciding when and how to invoke it.

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% and the description never mentions playlist_id or how to obtain it. The parameter name and 'saved track plan' give minimal implicit meaning, but the description does not compensate for the missing schema documentation.

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 uses a specific verb ('Resume') and a concrete resource ('one exact saved track plan'), and the title clarifies it applies to a private playlist. This distinguishes it from siblings like search_songs or create_private_radio_playlist, though it does not explicitly contrast itself with them and 'exact' is slightly vague.

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 only usage guidance is the negative constraint 'do not invoke concurrently.' There is no explicit statement about when to choose this tool over the search or create siblings, though the semantics imply it is for resuming an existing saved plan rather than creating or searching.

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