Get Channel

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

Annotations already declare readOnly, idempotent, non-destructive, and open-world behavior, so the safety profile is covered. The description adds the non-obvious operational fact that a call costs 1 quota unit, which is exactly the kind of cost/rate-limit context that helps an agent budget calls. It stops short of describing pagination or response shape, but an output schema exists to carry that.

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?

Two short fragments with zero filler; the return-contents statement is front-loaded and the quota note follows. Nothing could be trimmed without losing information.

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 zero-required-parameter read tool with full schema coverage, rich annotations, and an output schema, the description supplies what structured fields do not: the contents of the response and the quota cost. Only the absence of any routing guidance against overlapping siblings keeps it from being fully 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?

Schema description coverage is 100% and both parameters (channel, my_channel) are fully documented in the schema, including the 'Omit for your own channel' default. The description contributes nothing about parameter semantics, so the baseline 3 applies.

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 names the resource (channel) and enumerates what comes back: metadata, statistics, and the uploads playlist ID. That is specific enough for an agent to know what it retrieves, but it never names the verb or distinguishes itself from neighbors like list_my_channels or update_channel, so sibling differentiation is left to inference.

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?

There is no when-to-use guidance and no mention of alternatives, despite siblings such as list_my_channels (enumerating your channels) and get_analytics (channel metrics) overlapping in scope. The only routing clue is the schema's 'Omit for your own channel' default, which the description does not reinforce.

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