clip_set_color

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

No annotations are present, so the description carries the burden; it openly discloses that an empty color clears and that omitting all match parameters colors every video/audio item, a key destructive edge case. It does not discuss overwrite semantics, match-priority when multiple filters are supplied, or no-match handling, but the most important behaviors are covered.

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?

Two short sentences, with the primary action and clear behavior front-loaded and matching scope in the second. No filler or repeated schema 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?

For a simple 4-parameter mutation tool with an output schema, the description covers the action, the scoping options, the dangerous no-filter fallback, and the clearing behavior. The only notable omissions are color-value vocabulary and filter-combination rules, which are reasonable gaps given the Resolve-specific context and existing output schema.

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?

With 0% schema description coverage, the description adds meaningful semantics: the color parameter accepts Resolve color names with empty meaning clear, and the three optional parameters are matching keys with 'if none given' fallback. It stops short of specifying exact accepted color strings or how multiple match parameters combine, but it compensates for the bare schema better than most.

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 uses a specific verb ('Set') and resource ('Resolve clip color on timeline items'), gives example color values, and explains the clearing behavior. It clearly identifies the tool as the one for coloring clips, distinct from sibling timeline/marker tools.

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?

It explains matching scopes (unique_ids, media_id, clip_name) and the default behavior when no filter is provided, which tells the agent when it is safe to apply broadly. It does not explicitly name alternatives or exclusions, but there is no sibling that performs clip-color setting, so the context is sufficient.

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