redo

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

No annotations are provided, so the description carries the full behavioral burden. It discloses the return shape ('Object with redo description') but omits the important edge case of what happens when there is nothing to redo, and says nothing about scope (whether redo affects the whole project or a specific track/item context).

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?

Two short sentences, front-loaded with the action and followed by the return note. Nothing is padded, though the return line is minimal.

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?

With no output schema and no annotations, the description must cover behavior and return values, and it only partially does so. It gives the return shape but leaves failure modes and the interaction with 'undo' unaddressed, which matters for a history-mutating operation.

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 takes zero parameters, so the baseline is 4. The description correctly implies an implicit 'last undone action' target rather than a caller-supplied one, which is the only semantic worth conveying.

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?

States a specific verb (redo) and the exact resource/scope ('the last undone action in REAPER'), which is unambiguous. It does not reference the sibling 'undo' tool by name, so there is no explicit sibling differentiation, but the inverse pairing is self-evident.

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 never states when to use this tool versus its counterpart ('undo'), nor any precondition such as requiring a prior undone action. Usage is only inferable from the tool name.

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