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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description correctly reinforces this with "opens nothing by itself" — no contradiction. It adds genuinely useful behavioral context beyond the annotations: the return is a step-by-step guide (screens, buttons, fields) and actual execution requires the browser tools, which prevents an agent from assuming the duplicate already happened.

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 core behavior is front-loaded in the first sentence, which is good. However, the remaining content is crammed into one long compound sentence mixing return format, side-effect disclaimer, follow-on tools, and an API-absence footnote with a stale-looking date ("checked 11 Oct 2026") that adds little for tool selection.

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 zero-parameter guidance tool with no output schema, the description covers what it returns, that it has no side effects, and what the agent must do next. The only missing piece is how to specify which board to duplicate, which the empty schema leaves implicit.

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?

Zero parameters, so there is nothing for the schema to describe and the baseline applies. The description does not address how the target board is identified given the empty schema, which is a minor gap, but no parameter semantics are needed.

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 and resource ("Duplicate board in the user's own Milanote account") and then immediately clarifies that the tool itself returns instructions rather than performing the action. That clarification is essential and makes the purpose unambiguous, though it does not distinguish this tool from the unprefixed `duplicate_board` sibling in the list.

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 gives a clear follow-on path ("then do it with the cotlet_browser_* tools in the user's Milanote Cloud Browser"), which tells the agent how to complete the workflow. It never says when to pick this over `duplicate_board` or the generic `cotlet_app_guide`, so sibling selection is still left to inference.

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