channel_playlists

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It adds one important behavioral trait: 'Quota cost is 1 unit.' However, it doesn't mention other critical aspects like whether this is a read-only operation (implied by 'Get' but not explicit), rate limits beyond quota, authentication requirements, or what happens with the 'X-CACHEBYPASS' parameter that increases quota cost.

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 appropriately concise with two sentences. The first sentence states the purpose clearly, and the second provides important operational information about quota cost. There's no wasted verbiage or 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?

Given the tool's moderate complexity (8 parameters, 1 required), no annotations, and no output schema, the description is minimally adequate. It states what the tool does and mentions quota cost, but doesn't explain return values, error conditions, or how results are structured. For a tool with this many parameters and no output schema, more context would be helpful.

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 100%, so the schema already documents all 8 parameters thoroughly. The description adds no parameter-specific information beyond what's in the schema. The baseline score of 3 is appropriate when the schema does all the parameter documentation work.

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's purpose: 'Get playlist listing and channel details.' It specifies both resources (playlists and channel details) and the action (get/retrieve). However, it doesn't differentiate from sibling tools like 'channel_videos' or 'channel_home' that might also retrieve channel-related information.

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 provides no guidance on when to use this tool versus alternatives. With many sibling tools like 'channel_videos', 'channel_home', and 'playlist', there's no indication of what makes this tool distinct or when it's the appropriate choice. The quota cost mention is operational, not usage guidance.

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