browser_template_apply
Fetch a recipe from the browser-templates AgentDB namespace and return it for caller-level execution. Use when native WebFetch is wrong because you need real browser automation — JS-heavy SPA scraping, login flows with cookie reuse, replay against DOM-drifted versions, AIDefence PII gating before...
This record as markdown: /tools/ruflo/browser-template-apply.md
What browser_template_apply does on Ruflo
AI agents invoke browser_template_apply to trigger actions in Ruflo. 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_template_apply is rated High
This tool retrieves a browser automation recipe and executes it at the caller level, enabling real browser automation including login flows with cookie reuse and SPA scraping. The execution of arbitrary browser automation templates — which can interact with authenticated sessions, scrape JS-heavy sites, and handle PII — represents significant Execute-level risk.
From the tool's definition 'Fetch a recipe from the browser-templates AgentDB namespace and return it for caller-level execution' and 'real browser automation — JS-heavy SPA scraping, login flows with cookie reuse, replay against DOM-drifted versions, AIDefence PII gating'
Attacks that exploit this kind of access
The rule that runs browser_template_apply safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ruflo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_template_apply, this is the rule to start with:
browser_template_apply 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 Ruflo, apply this rule, and every browser_template_apply call is checked against it from then on.
Questions about browser_template_apply
Fetch a recipe from the browser-templates AgentDB namespace and return it for caller-level execution. Use when native WebFetch is wrong because you need real browser automation — JS-heavy SPA scraping, login flows with cookie reuse, replay against DOM-drifted versions, AIDefence PII gating before content reaches Claude. For static HTML pages, native WebFetch is faster and free. It is categorised as a Execute tool in the Ruflo MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Ruflo MCP server in PolicyLayer and add a rule for browser_template_apply: 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 Ruflo. Nothing to install.
browser_template_apply 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_template_apply 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_template_apply. 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_template_apply is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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