move_firefox_tabs_to_group

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

With no annotations, the description must carry behavioral transparency. It mentions 'one verified operation' and cross-window support, but omits potential side effects like unpinning (implied by allowUnpin) and does not describe error handling or prerequisites (e.g., tabs must be from list_firefox_tabs). It provides partial transparency but leaves important details to 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?

Single sentence, front-loaded with purpose, no filler. Every word adds meaning without excess.

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 description gives an overview but lacks critical nuances: it does not explicitly mention that allowUnpin may cause tabs to be unpinned, nor what happens if the group is not found or tabs are not valid. Given no annotations and no output schema, more behavioral detail would be helpful, but the essential operation is conveyed.

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 covers all parameters with descriptions, so baseline is 3. The description adds useful context: 'exactly identified' for tabIds (implying prior enumeration), 'existing, exactly named' for groupTitle (emphasizing exact match), and 'cross-window supported with an explicit windowId' for windowId. This goes beyond the schema's static definitions, earning a 4.

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 ('move'), the objects ('a batch of exactly identified Firefox tabs'), and the target ('into one existing, exactly named group'), explicitly distinguishing it from the singular move_firefox_tab_to_group by emphasizing batch and cross-window capability.

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 specifies when to use the tool (for batch moves, cross-window scenarios) and implies prerequisites (exact tab IDs and group name). It does not explicitly exclude alternatives like the singular move, but the 'batch' and 'exactly identified' phrasing provides clear context. No explicit exclusions are given, but the context is adequate.

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