Connect YouTube Live Chat bus

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

Annotations already signal a non-read-only, non-destructive write operation. The description adds detail about scaffold contents (e.g., moderation policy, API/quota safety notes) but does not disclose side effects like overwriting existing COMPs, need for YouTube API credentials, or rate limiting behavior. This is consistent with annotations but adds limited behavioral context.

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 that efficiently lists the key scaffold features. It is front-loaded with the verb 'Create' and contains no redundant phrases.

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?

The tool has 10 parameters and no output schema, yet the description only offers a high-level component list. It omits configuration details (e.g., adapter_mode options, moderation_level semantics) and does not describe the resulting COMP structure or project impact, leaving gaps for an agent to invoke 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 description coverage is only 20%, and the description references components like 'sanitized message rows' and 'Super Chat tiers' without clarifying how they map to parameters such as message_count or super_chat_tier_count. The description does not explain parameter meanings, allowed values, or relationships, so the low schema coverage is not compensated.

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 ('Create') and identifies a concrete resource ('YouTube Live Chat scaffold'), listing key components like sanitized message rows and Super Chat tiers. It is clear about the tool's goal, but does not explicitly distinguish it from the many similar scaffold/bus creation sibling 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 description provides no guidance on when to use this tool over alternatives. It does not mention prerequisites, scenarios, or exclusions. Usage is only implied by the tool name and component list.

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