rollback_checkpoint

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It indicates a mutating operation ('rolls back') but does not state that current node state will likely be overwritten or whether the operation is reversible. It also omits failure modes and scope-of-effect 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?

The description is a single sentence that front-loads the action and target. The phrase 'rolls back and restores' is mildly redundant but does not significantly bloat the definition.

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 potentially destructive mutation tool with no annotations and no output schema, the description omits important context: irreversibility, which nodes are affected, how the optional fileId changes scope, and what the tool returns. The schema covers parameter names but not operation-level expectations.

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 already documents both parameters with descriptions, achieving 100% schema description coverage, so the baseline is 3. The tool description itself adds no extra meaning about checkpointId or optional fileId beyond the schema. No parameter semantics are enriched.

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 phrase ('rolls back and restores') with a clear resource ('canvas nodes') and object ('earlier checkpoint state'). This clearly distinguishes it from sibling checkpoint tools like create_checkpoint and list_checkpoints. It unambiguously states what the tool does.

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 does not explicitly state when to use this tool versus alternatives, nor does it mention exclusions or sibling tools like undo_last_transaction or apply_document_transaction. However, the implied usage scenario—restoring nodes to an earlier checkpoint—is reasonably clear from the wording.

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