add_transition_to_clip

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

The description does not contradict annotations (readOnlyHint=false, destructiveHint=false). It adds that the tool creates a transition, which is a mutation, but provides no additional behavioral context such as potential side effects or requirements beyond the schema.

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, clear sentence that efficiently conveys the purpose. It is front-loaded and concise, though could include more detail without becoming verbose.

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 tool has 4 parameters and no output schema, the description is too brief. It lacks information about side effects, requirements (e.g., clip must have handles), or typical usage scenarios.

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 description need not elaborate on parameters. It adds no additional meaning beyond the schema definitions, which is acceptable for a baseline of 3.

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 action (add transition) and the resource (specific clip) and specifies location (start or end). It is specific enough to distinguish from broader tools like 'add_transition' but does not explicitly call out sibling differences.

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?

No guidance on when to use this tool vs alternatives like 'add_transition' or 'batch_add_transitions'. No prerequisites or when-not-to-use instructions are provided.

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