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

The annotations declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false, indicating a mutating, non-idempotent operation. The description says 'stage as draft' but does not explain what gets destroyed or overwritten, whether staging replaces an existing draft, what permissions are needed, or what the screenshot output looks like (format, size). This is a significant transparency gap for a destructive tool.

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?

A single, well-formed sentence that front-loads the core action and states the outcome. No filler or redundancy.

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?

The description is too sparse for a destructive, non-idempotent tool with no output schema. It leaves out critical context: what staging overwrites or destroys, how the screenshot is delivered, and when to use it instead of stage_own_theme or check_own_theme.

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 100%, so the schema already documents all three parameters thoroughly (page options, slug, width range). The description adds no parameter-specific detail beyond what the schema provides. Baseline 3 applies.

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 states a specific action: stage an own theme as a draft and return a screenshot of one page. This distinguishes it from related siblings like stage_own_theme (staging only) and check_own_theme, though it doesn't explicitly name those alternatives.

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 phrase 'so you can see what you built' implies a preview/verification use case, but the description does not explicitly state when to use this versus stage_own_theme or other theme tools, nor does it mention prerequisites or exclusions.

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