create_timeline_from_clips

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

With no annotations provided, the description must disclose behavioral traits, but it only states the basic action. It does not mention side effects (e.g., whether clips are moved or referenced), what happens if clip names are invalid, whether the operation is reversible, or any permissions needed. This is a significant gap for a creation 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?

The description is a single, succinct sentence with no redundant words. It front-loads the action and resource, and every word adds meaning. There is no fluff or unnecessary detail.

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 no annotations and no output schema, the description needs to cover prerequisites, side effects, and return behavior. It only states the core action, leaving the agent without essential context such as whether clips must already exist in the project, whether the timeline is created in the current project, or what constitutes success. This is insufficient for reliable tool invocation.

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 0%, so the description must compensate. It clarifies that clip_names are 'by name,' which adds a bit of meaning, but it provides no details about expected formats, constraints, or relationships between parameters. The parameter names are self-explanatory, but the description does not fully compensate for the lack of schema documentation.

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 clearly states the tool creates a new timeline from specified clips by name, distinguishing it from sibling tools like 'create_timeline' (which likely makes an empty timeline) and 'append_to_timeline' (which adds to an existing timeline). The verb 'create' and resource 'timeline' are explicit.

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 intended use is implied: when you want to build a timeline from existing clip names. However, there is no explicit guidance on when to use this versus alternatives, nor any exclusions or prerequisites mentioned.

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