search_within_playlist

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

With no annotations, the description carries the behavioral burden. It discloses that the tool walks the full playlist item list and filters client-side, and it flags the request type and quota via 'GET /playlists/{id}/items paged', signaling a read-only but potentially expensive operation.

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 compact sentences with the core purpose and mechanism front-loaded. The quota note adds practical operational value without unnecessary elaboration.

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 read-only search tool with full parameter documentation, the description is nearly complete: it covers scope, mechanism, quota, and output style via the response_format enum. It lacks explicit sibling-tool routing, but that is not essential for invoking it 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 the schema already documents all parameters. The description adds useful operational context about client-side filtering and paging but does not explain individual parameters beyond what the schema provides.

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 a specific action ('search'), a bounded resource ('inside a single playlist'), and the implementation approach ('client-side filter over full item walk'). This clearly differentiates it from global search tools and playlist-level browsing tools.

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 intended use case is explicit: text search scoped to exactly one playlist. It does not name alternative tools or explicitly say when not to use it, so it lacks the strongest routing guidance but still provides clear context.

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