create_player_playback_step_back

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

The annotations (readOnlyHint=false, idempotentHint=true, destructiveHint=false) already indicate a mutating, safe, idempotent operation, but the description adds no further context: it does not state how large the step is, whether it requires an active session, or what side effects it has. The description simply restates the action without disclosing behavior.

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 appropriately brief for a parameterless action ticket, with the action named first. However, the endpoint line somewhat duplicates the tool name and could be omitted without loss.

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 tool with no parameters)Skip, the description is underspecified: it never explains what 'step back' actually does in operation, how it relates to sibling playback controls, or whether any runtime state is required. An agent would have to rely on the endpoint path and guess at the behavior.

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 zero parameters, so there is nothing for the description to add. The description's lack of parameter detail is not a gap; the baseline for a parameterless tool is 4.

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 states a specific action ('Player Step Back') and identifies the endpoint, making it clear this is a playback control operation. It is distinct enough from siblings like create_player_playback_step_forward, though it does not elaborate on what 'step back' entails.

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?

No guidance is given for when to use this tool versus related alternatives such as create_player_playback_step_forward, create_player_playback_seek, or create_player_playback_skip_by. There are no prerequisites, typical scenarios, or exclusions mentioned.

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