create_subsequence

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

Annotations indicate readOnlyHint=false and destructiveHint=false, so the description's claim of creation is consistent. However, it does not disclose side effects (e.g., whether original clips are modified or just referenced), track targeting behavior, or permissions. Minimal extra context beyond annotations.

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 14-word sentence that efficiently conveys the tool's purpose. No unnecessary words; front-loaded with the key action.

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 output schema, the description should hint at the result (e.g., the subsequence clip is added to the timeline). It does not, leaving the agent to guess. However, for a tool with one parameter, it is minimally adequate.

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?

The single parameter 'ignore_track_targeting' has a description in the schema (100% coverage). The description adds no further meaning, so baseline of 3 is appropriate.

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 subsequence (nested sequence) from selected clips or a time range. This differentiates it from sibling tools like create_sequence or nest_clips.

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 implies usage when needing a nested sequence from selections or a time range, but does not explicitly state when to use this over alternatives (e.g., create_sequence, nest_clips) or any prerequisites. Guidance is adequate but incomplete.

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