create_player_playback_skip_by

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

Annotations already indicate readOnlyHint=false, idempotentHint=true, and destructiveHint=false. The description adds the offset direction semantics and the POST endpoint, which is useful but minimal; it does not disclose edge-case behavior like what happens when offset is null or when skipping beyond available items.

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 brief and mostly front-loaded with the endpoint and then the parameter explanation. The opening line 'Player Skip By.' is somewhat redundant with the tool name but does not significantly hurt clarity.

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 single-parameter tool with an output schema, the basic operation and parameter semantics are sufficient. However, the presence of many closely related playback control siblings means the description lacks the contextual guidance needed to reliably choose this tool over alternatives.

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 0%, so the description must fully compensate for the undocumented offset parameter. It does so by explaining that offset is the number of items to skip and that positive values go forward while negative values go backward, which is clear and actionable.

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 indicates a playback skip-by operation with an HTTP endpoint and offset semantics. However, it does not explicitly contrast itself with related sibling tools like create_player_playback_skip_to or create_player_playback_step_forward, so 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?

The description gives no guidance on when to use this tool instead of the many related playback control siblings. It only describes the offset parameter, leaving the agent to guess when skip-by is preferable to skip-to, seek, step-forward, or step-back.

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