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

Annotations already declare the safety profile (write, not destructive, closed-world). The description adds substantive non-obvious behavior: the copy carries background, overlay and padding, and slot-token text is deliberately NOT duplicated (shared by construction). This explains preservation vs. sharing well; it omits auth/prerequisite and side effects on the source.

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 with the core action, and each sentence carries a distinct point (routing, what's preserved, why text isn't copied). The prose is stylized and somewhat longer than strictly needed ('everything it is wearing', the unpainted-section aside), costing a little efficiency.

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 non-trivial write operation with no output schema and only 33% param coverage, the description covers the mechanics and the text-sharing nuance but leaves the two undocumented required params and any return value (e.g., an identifier for the new section) unexplained.

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 coverage is 33%: only 'index' is documented (1-based, per get_page). The description never mentions projectId or pageName, which are the undocumented required params, so it does not compensate for the coverage gap. 'Put the copy after it' only loosely gestures at placement and adds little over the schema.

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 ('Copy a section... put the copy after it') plus the placement rule (after the original). It explicitly routes to the sibling ('uichemy_duplicate_page exists; this is the same move one level down'), so an agent can distinguish it from duplicate_page and other section tools without opening a schema.

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?

Clearly positions itself relative to uichemy_duplicate_page as the section-level analog, giving the agent a strong selection cue. It does not, however, contrast against section-creation siblings like add_section or insert_saved_section, nor state when duplicating is preferable to adding fresh.

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