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

Annotations already declare readOnlyHint=false, destructiveHint=true, and openWorldHint=true, so the safety profile is known. The description adds valuable behavioral context: it replaces the current presentation while earlier versions remain restorable, invalid presentations return field-level errors, and it explains brand sourcing rules and that no source code is included.

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 description is long but front-loaded with the core purpose and each sentence adds relevant information about content sourcing, timing, replacement, and validation. It could be more scannable with structure, but given the schema's complexity the length is largely justified and there is little waste.

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?

Given the complex nested schema and the absence of an output schema, the description covers the key behaviors an agent needs: destructive replacement with restorable history, brand derivation, scene timing constraints, and validation errors. It does not discuss permissions or id requirements, but those are minor omissions for this tool.

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 100%, so the schema documents all field structures. The description nonetheless adds semantic meaning beyond the schema: it defines the timing rule for 'seconds' (at least reading time, about 1.5 seconds plus one second per three words, minimum 3 seconds, whole seconds, 60-second total cap) and explains that brand colors, radius, and font come from the product's own logo and styles.

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 ('Save') and resource ('a delivery's release presentation'), then details the content and presentation rules. An agent can immediately tell this is the write tool for a delivery's presentation, distinct from get/delete siblings.

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 explains what the tool does and its constraints but never states when to use this tool versus alternatives such as update_delivery, get_delivery_presentation, or delete_delivery_presentation. No explicit when-to-use or when-not-to-use guidance is provided.

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