switch_to_default_content

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. It clearly states the action and the context, but it does not mention what happens if the current context is not a frame, such as whether it is a no-op or raises an error. This is a minor gap for such a simple, zero-parameter 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 concise sentence that fully communicates the tool's purpose and context. Every word earns its place; there is no padding or repetition.

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 that the tool takes no parameters, has no output schema, and performs a single straightforward action, the description is complete. An agent can correctly invoke it without additional guidance.

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 tool has zero parameters, so there is no parameter semantics burden on the description. The schema coverage is 100% and no parameters need documentation; the description's lack of parameter detail 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 uses a specific verb ('Switch back') and identifies the exact target ('main page content') and origin ('inside a frame'). This clearly distinguishes it from switch_to_frame and switch_to_window, which are present among siblings.

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 phrase 'from inside a frame' gives clear context for when this tool applies. It does not explicitly state 'use this instead of switch_to_frame when returning to the top-level document,' but the intended usage is strongly implied and easy to infer.

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