unpin_firefox_tab

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It adds 'and verify it', indicating a verification step after unpinning, which is useful. However, it does not explain failure behavior (e.g., tab not found, tab not pinned) or the exact nature of verification.

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, front-loaded sentence with no wasted words. It immediately states the action and verification aspect, making it easy for an agent to scan and extract meaning.

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 with one parameter, but there is no output schema and no annotations. The description states the action and verification but does not specify return values or outcome details. It is adequate for a basic mutation tool but leaves some ambiguity about success/failure semantics.

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 input schema covers 100% of parameter details, including the selector structure and property descriptions. The description adds little beyond the schema, only reinforcing that the tab must be 'exactly identified', which is already implied by the selector's exact-match options.

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 verb 'Unpin' and the resource 'Firefox tab', making the tool's core function explicit. The phrase 'exactly identified' narrows the scope to a single tab and distinguishes it from batch operations and the sibling 'pin_firefox_tab' tool.

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?

Usage is implied by the term 'unpin', but there is no explicit guidance on when to choose this tool over alternatives, such as 'pin_firefox_tab' for the opposite action or 'list_firefox_tabs' for finding tab IDs. No exclusions or prerequisites are mentioned.

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