unflag_emails

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action and notes that UIDs are permanent, but does not disclose what happens on invalid UIDs, whether the operation is reversible (unflagging can be undone by flag_emails), or any side effects. For a mutation tool with zero annotation coverage, this is a significant gap.

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 sentences, front-loaded with the action. The second sentence about UIDs being permanent is relevant and concise. No wasted words; the definition is efficiently structured.

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?

The tool is simple, but without annotations, an agent needs to know error behavior or return values. The description does not cover what happens if UIDs are invalid, whether it confirms the action, or if any preconditions exist (e.g., folder must exist). Given no output schema and no annotations, this is incomplete for a complete usage scenario, but acceptable for a basic mutation.

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 schema already describes both parameters (uids array and folder with default). The description adds minimal extra: it clarifies that UIDs are permanent identifiers, which is useful context for why UIDs are used but not specific to parameter handling. The baseline of 3 is appropriate since the schema does the heavy lifting.

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 states a clear action ('Remove flag/star from emails') and the resource, with the mechanism (UIDs). It does not explicitly differentiate from sibling tools like flag_emails, but the opposite verb makes the distinction obvious. A 5 would require naming the sibling explicitly.

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 you have UIDs and want to unflag emails. It mentions UIDs are permanent, which hints at when they are available. However, it does not give explicit guidance about when not to use this tool or mention alternatives like flag_emails. The guidance is implied rather than stated.

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