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

Annotations only declare readOnlyHint=false, openWorldHint=false, destructiveHint=false, so the safety profile is coarse. The description adds a genuinely non-obvious behavioral trait: slot tokens belong to the LAYOUT, so the duplicate shares text sourcing with the original. It does not address whether the copy is independent for styling, where it lands, or name-collision handling.

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?

Front-loaded verb and copied scope, followed by the caveat and the remediation path — a sensible information ordering with no filler sentences. The all-caps emphasis on 'THE COPY SHOWS THE SAME WORDS' is slightly shouty but conveys the key constraint efficiently.

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 mutation tool with no annotations detail and no output schema, the description covers what gets copied and the slot-token caveat well, but omits where the new page is placed, whether pageName must already exist, and what the caller receives back. Adequate but with clear gaps.

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?

All three parameters are required and only newName has a schema description ('What the copy is called.'), giving 33% coverage. The description says nothing about projectId, pageName, or the naming parameter, so it does not compensate for the sparse schema — an agent gets no help on which project/page the copy is taken from.

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 gives a specific verb and resource ('Copy a page') and enumerates the copied scope (sections, layouts, backgrounds, overlays, padding), which is far more informative than the title alone. It does not explicitly name or contrast with the nearby sibling uichemy_duplicate_section, so an agent must infer the page-vs-section distinction.

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?

It not only states the operation but explains the critical usage consequence — the copy reads from the same slot tokens, so duplicating will not let you show different words — and routes the agent to the correct alternative workflow: use uichemy_replace_section to swap layouts, then write copy into those. That is explicit when-to-use-this and what-to-do-instead.

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