undo

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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it only restates the action and implies mutation through the word 'undo'. It does not explain what happens when there is nothing to undo, whether the operation is strictly single-step, or how it relates to 'multiple_undo' and 'redo' — behavior an agent would need to predict failure modes and side effects.

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 short sentence with no filler; the action and application context are front-loaded immediately. This is an appropriately sized description for a parameterless operation, though the brevity comes at the cost of behavioral depth.

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 simple parameterless tool the core action is covered, but with no annotations and no output schema the description must carry more weight. It omits edge-case behavior (empty undo history), step scope (single vs. multiple), and its relationship to 'redo'/'multiple_undo', leaving an agent to guess at failure modes.

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 tool has zero parameters and an empty input schema, so per baseline there is nothing for the description to document. No parameter semantics are missing because no parameters exist.

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 the action ('undo operation') and the application ('in Premiere Pro'), so an agent understands the basic function. However, it is nearly a tautological restatement of the tool name 'undo' and does nothing to differentiate it from the direct siblings 'redo' and 'multiple_undo', which an agent would need to choose between.

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 about when to use this tool versus 'multiple_undo' for multi-step rollback or 'redo' for reversing an undo. There are also no prerequisites or caveats mentioned, such as whether an operation must have been performed first or what happens when the undo history is empty.

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