undo

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

No annotations are provided, so the description must carry the transparency burden. It discloses the non-obvious behavior that a draw_batch counts as one operation, which is useful. However, it does not mention whether the operation is destructive or reversible, error conditions, or any limits, leaving notable gaps.

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 immediately states the action and includes only the essential batch-counting nuance. There is no wasted text, and every word earns its place.

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?

Given the tool's simplicity, one parameter, and the presence of an output schema, the description covers the action and the crucial batch-counting behavior. This is complete for an agent to select and invoke the tool correctly, with no additional critical context needed.

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 0%, so the description must explain the count parameter. The phrase 'Undo the last N operations' directly maps to the count parameter, and 'a whole draw_batch counts as ONE' clarifies the counting unit, adding semantic meaning beyond the raw integer schema. It doesn't mention the default, but the schema already provides that.

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 the specific verb 'Undo' with the resource 'operations', clearly stating the action. The parenthetical about draw_batch counting as ONE clarifies an important semantic distinction, helping distinguish it from sibling tools like redo or erase_last.

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 usage (use when you want to revert recent operations) but provides no explicit when/when-not or alternative guidance. It does not mention that redo is the counterpart or distinguish from erase_last, so an agent might not know which undo-related tool to choose without additional context.

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