trakt_start_scrobbling

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

Annotations already signal that this is a non-read-only, non-destructive, open-world operation. The description adds the specific behavior of 'real-time scrobbling' but does not disclose details like whether authentication is required, if it creates a session that must be stopped, or how it interacts with the Plex playback element. It adds some context but not rich behavioral detail.

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, front-loaded sentence that conveys the core action without any fluff. Every word serves a purpose, making it concise and easy to parse.

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?

Despite the annotations and full schema coverage, the description is too minimal for a side-effectful tool. It does not mention authentication prerequisites, return value, or that this is for starting a scrobble session during active playback. With 5 parameters and a family of trakt_* tools, more context is needed for correct invocation.

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 covers 100% of parameters with descriptions, so the baseline is 3. The description itself adds no parameter-level meaning beyond what the schema provides, so it neither helps nor hurts.

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 ('Enable') and resource ('real-time scrobbling to Trakt.tv'), clearly distinguishing it from sibling tools like trakt_sync_to_trakt or trakt_authenticate. However, it does not explicitly mention that this applies to currently playing media, which would fully clarify the scope.

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 vs alternatives, nor does it mention prerequisites such as prior authentication via trakt_authenticate. There is no indication of when not to use it or how it differs from trakt_sync_to_trakt.

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