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

Annotations already declare this is a non-read-only, non-idempotent write with no destruction or open-world access. The description adds useful context beyond that: the deck is persisted in the user's workspace, and the result is the slides as an inline preview plus an editable link. It doesn't mention permission or rate-limit considerations, keeping it below a 5.

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?

Three tight sentences with no filler, and the core action is front-loaded before the return behavior and the usage trigger. Every sentence carries distinct information.

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?

Covers what the tool does, where the artifact lands, what comes back (preview + edit link), and when to invoke it. With an output schema present it needn't enumerate return fields, and nothing essential for correct invocation is missing.

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 both parameters are fully documented in the schema. The description only echoes 'from a brief or topic' and never clarifies the optional title behavior beyond what the schema already states. Baseline 3 is appropriate when the schema does the heavy lifting.

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 (Create) and resource (a polished, designed presentation deck) plus the scope (the user's Xenition workspace). It clearly separates this from sibling creators like create_diagram, create_document, create_spreadsheet, and create_video by naming the concrete artifact type.

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?

Explicitly gives trigger conditions: 'Use when the user asks for slides, a deck, a presentation, or a pitch deck.' This tells the agent exactly when to reach for this tool. It stops short of naming when NOT to use it or pointing to alternatives (e.g., create_diagram) for adjacent requests.

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