youfiliate_connect_youtube

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

Beyond annotations (readOnlyHint=false, destructiveHint=false, idempotentHint=false, openWorldHint=true), the description adds that the tool does NOT read or modify YouTube data, that the OAuth flow is completed by the user in the browser, and that it only returns a URL. This provides critical behavioral context for safe invocation.

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 concise yet thorough, starting with the core action, then explaining the workflow, followed by clarifying non-modification, and concluding with common errors. Every sentence adds value without 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 tool's simplicity and the presence of annotations and an output schema, the description covers all key aspects: purpose, usage steps, behavioral side effects, and error handling. It references the sibling disconnect tool, making it contextually complete.

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 input schema has one required parameter 'params' with an optional nested property 'response_format'. Schema description coverage is 0% for the top-level parameter, but the description does not mention this parameter at all, failing to add value beyond the schema for guiding agent parameter selection.

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 initiates a YouTube OAuth connection and returns an authorization URL. It distinguishes itself from sibling tools like youfiliate_disconnect_youtube and youfiliate_get_youtube_status by specifying the action and output.

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 instructs the user to open the returned URL in a browser, explains that the OAuth callback is handled in the browser, and provides a common error case (already connected) with a suggested action (disconnect first). This provides clear when-to-use and when-not-to-use guidance.

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