ff_type

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

No annotations exist, so the description carries full burden. It reveals the 'real tab' and bridge dependency but omits critical details: whether it clears existing text, handles errors, requires permissions, or modifies the DOM beyond typing. Lacks disclosure of side effects.

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 (28 words) that front-loads the main action. It efficiently conveys key context but could be better structured with separate clauses for prerequisites.

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 no annotations and 0% schema coverage, the description is too brief. It lacks information on return values, error handling, prerequisites (bridge add-on loaded), and behavioral modifiers like clearing input or waiting. Incomplete for a typing tool.

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 0%, so description must compensate. It clarifies that 'selector' is a CSS selector, but does not explain 'text' (plain string?) or 'tabId' (target tab?). Adds minimal meaning beyond parameter names.

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 (type text), the target (input via CSS selector), and the context (real Firefox tab). It distinguishes from sibling 'type_text' by specifying the real Firefox requirement and bridge add-on dependency.

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 provides clear context: it operates on a real running Firefox with the bridge add-on. This implies when to use (when bridge is loaded) but does not explicitly exclude alternatives or state when not to use.

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