Redo

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

No annotations are provided, so the description carries the full burden, and it discloses almost nothing behavioral. It does not say whether this mutates the document, whether the redo is itself reversible, what occurs when nothing is undone, or whether history state is affected beyond the edit.

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?

One short, front-loaded sentence with no wasted words, but brevity here comes at the cost of under-specification rather than genuine information density. It is appropriately sized for what it says, not for what an agent needs.

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 annotations, no output schema, and an undocumented parameter, the definition is too thin for a state-mutating history tool. An agent cannot know the preconditions, the effect of a failed redo, or the meaning of steps from this description alone.

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% and the single 'steps' parameter has no description anywhere. The phrase 'the last undone edit' actually implies a single step, giving no hint that multi-step redo is supported, so the description adds little and slightly misleads on the default behavior.

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 resource (last undone edit), which an agent can distinguish from bb_undo by the undo/redo pairing. However, it never names the sibling it mirrors or clarifies that it applies to the editor's history stack rather than some other edit context.

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?

Usage is only implied by the undo/redo convention; there is no explicit statement of when redo is applicable (e.g. only after an undo) or what happens when the redo stack is empty. No alternatives or exclusions are named.

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