ncloud_vodstation_start_channel

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

Annotated with idempotentHint: true and destructiveHint: false, the description adds the key behavioral detail that the target channel must be in STOPPED status, which is not covered by annotations. It does not contradict annotations and provides useful context about the state transition being performed.

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 of 11 words that front-loads the verb 'Start (resume)'. Every word contributes to understanding the action and its precondition. There is no redundancy or extraneous detail.

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 (one parameter, no output schema, idempotent and non-destructive annotations), the description covers the essential semantics: the action and the required state. It could be more explicit about behavior if the channel is already running, but the idempotent annotation and STOPPED-status condition provide sufficient context for an agent to select and invoke the tool 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?

The input schema already provides 100% coverage with channelId described as 'Channel ID to start'. The tool description adds no further parameter-specific meaning beyond confirming that the channel must be a VOD Station channel, but this is already implied by the tool name and schema. Baseline 3 is appropriate for high schema coverage.

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 action ('Start (resume)') and the resource ('VOD Station channel'), with a specific condition ('that is in STOPPED status'). This distinguishes it from sibling tools like ncloud_vodstation_stop_channel, which performs the opposite action, and ncloud_vodstation_create/delete, which manage channel lifecycle.

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 clear context: the tool should be used when a VOD Station channel is in STOPPED status to resume it. It implies a prerequisite condition, though it does not explicitly name alternatives or state when not to use it. The 'STOPPED status' qualifier serves as a de facto usage guideline.

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