replay_autoplay

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

With no annotations provided, the description carries the full burden. It discloses that the tool toggles autoplay and optionally sets speed, but it does not specify the effect of the toggle (e.g., whether it starts or stops playback, or the current state dependence). This is acceptable for a simple toggle but lacks deeper behavioral details.

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?

A single, front-loaded sentence that communicates the action and optional adjustment. Every word is informative, and there is no redundancy or fluff.

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 one optional parameter and no output schema, the description is minimally adequate. It does not mention how to check the current autoplay state (e.g., via replay_status) or any dependencies, but given the low complexity, this is not a critical omission.

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%, with the speed parameter fully documented including valid values and unit. The description adds no extra meaning beyond restating that speed can be set optionally, so the baseline score of 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 uses a specific verb ('Toggle') and names the resource ('autoplay in replay mode'), clearly distinguishing it from sibling tools like replay_step or replay_start. The optional speed setting is also mentioned, fully capturing the tool's function.

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 implies the tool is for enabling/disabling autoplay in replay mode, but it does not explicitly state when to use it over alternatives or provide exclusions. There is no guidance on prerequisites like being in replay mode first, which is a gap for a tool with many replay-related siblings.

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