set_transition

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 disclosure burden. It states the action but does not clarify whether this overrides existing per-link transitions, whether it affects only future links or retroactively applies to all current links, or what side effects occur. The ambiguity of 'default transition' vs 'all prototype links' is a notable gap for a mutating 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?

A single sentence that is short, grammatically clear, and front-loaded with the main verb and target. No filler or redundant explanations.

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 mutation tool with four parameters and no output schema, the description and schema leave important operational context unclear: whether this updates all existing links or only sets a default for future ones, whether the transition parameter is mandatory, and what happens if some parameters are omitted. The description is too skeletal to fully guide correct invocation without additional reasoning.

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 each parameter having at least a basic description and enums providing allowed values. The tool description adds little semantic value beyond confirming the operation involves a frame and transition. Baseline 3 is appropriate because the schema already carries the parameter meaning.

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?

Describes a specific action ('Set the default transition') on a specific resource ('all prototype links on a frame'). It clearly distinguishes itself from sibling tools like create_prototype_link or remove_prototype_link because it targets the default transition for all links on a frame.

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: use it when you want to set the default transition for all prototype links on a frame. However, it does not explicitly state when to choose this over related tools such as create_prototype_link, create_flow, or remove_prototype_link, nor does it mention any exclusions or prerequisites.

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