render_sequence_preview

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

No annotations are provided, so the description must carry the full behavioral burden. 'Render preview files' implies file generation and possible side effects on disk, but the description does not say where previews are written, what format they use, whether the operation is blocking or long-running, or what happens if no sequence is active.

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 a single front-loaded sentence with no filler. It immediately states the action and the optional range scope.

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 rendering tool with no annotations and no output schema, the description is too thin. It omits where preview files are saved, whether rendering depends on sequence settings or render presets, and what an agent should expect after invoking it.

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%, with startTime and endTime already documented as seconds. The description's '(or a range)' loosely maps to those parameters but adds no syntax, format, or default behavior beyond what the schema provides.

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 verb and resource: 'Render preview files for the active sequence (or a range).' This is clear enough for an agent to understand what is being produced. It does not explicitly distinguish itself from nearby export tools like export_sequence or export_frame, so it misses the top-tier sibling differentiation.

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?

Mentioning 'active sequence' implies a required context, and '(or a range)' hints at optional scoping. However, the description never states when to use this over export_sequence, export_frame, or export_direct, and it gives no prerequisites such as needing an active sequence first.

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