browser_select_option
Select an option in a dropdown
This record as markdown: /tools/a11y-agent-skills/browser-select-option.md
What browser_select_option does on A11y Agent Skills
AI agents invoke browser_select_option to trigger actions in A11y Agent Skills. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why browser_select_option is rated High
Selecting a dropdown option is a browser action that modifies UI state and can trigger downstream effects such as form field changes, dynamic content loading, or even form submission. It falls under Execute as it performs an external browser operation whose impact depends on the context/arguments.
From the tool's definition 'Select an option in a dropdown' — triggers a browser interaction that changes the state of a UI element, which may cause side effects depending on the application (form submissions, navigation, data changes).
Attacks that exploit this kind of access
The rule that runs browser_select_option safely
PolicyLayer is an MCP gateway: it sits between your AI agents and A11y Agent Skills, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_select_option, this is the rule to start with:
browser_select_option stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect A11y Agent Skills, apply this rule, and every browser_select_option call is checked against it from then on.
Questions about browser_select_option
Select an option in a dropdown. It is categorised as a Execute tool in the A11y Agent Skills MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the A11y Agent Skills MCP server in PolicyLayer and add a rule for browser_select_option: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches A11y Agent Skills. Nothing to install.
browser_select_option is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the browser_select_option rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for browser_select_option. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
browser_select_option is provided by the A11y Agent Skills MCP server (smukh/a11y-agent-skills). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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