select_dropdown_option

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

No annotations are provided, so the description carries the burden. It usefully discloses that this drives the user's actual Chrome browser through the OctoLimb extension (a real side-effecting action), but says nothing about failure modes (option not found), whether the dropdown must be open first, or timing/auto-wait behavior.

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?

Compact — one bracketed environment note plus one core sentence. Front-loaded with the selection action, with no redundant padding.

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?

Adequate for a simple interactive action with no output schema, but with no annotations and no sibling routing it leaves the agent to infer how to obtain valid option texts and whether the dropdown must be opened beforehand. Complete enough to call, incomplete on the workflow around it.

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 description coverage is 100%, so the baseline is 3. The description restates the schema's own semantics (select by option text, target element index) without adding format details, and the optional 'intent' parameter is not mentioned at all.

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?

States a specific verb (select) and resource (dropdown option) plus the selection key (option text, element index). It is clearly distinct from get_dropdown_options and click_element in intent, though it never names those siblings to sharpen the distinction.

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 bracketed clause gives real context on when to use it: only when the task requires acting on a real website via the user's Chrome browser. It does not, however, explain the relationship to sibling get_dropdown_options (e.g., call it first to learn valid option texts), so alternatives are left implicit.

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