Get or set cookies for the current browser session. Use 'get' to read all cookies (useful for debugging auth). Use 'set' to add cookies (useful for setting auth tokens). Use 'clear' to delete all cookies.
Accepts file system path (cookies[].path)
Part of the Screenshotsmcp MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents may call browser_cookies to permanently remove or destroy resources in Screenshotsmcp. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. Intercept blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call browser_cookies in a loop, permanently destroying resources in Screenshotsmcp. There is no undo for destructive operations. Intercept blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
tools:
browser_cookies:
rules:
- action: deny
reason: "Blocked by default — enable with approval"See the full Screenshotsmcp policy for all 56 tools.
Agents calling destructive-class tools like browser_cookies have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Destructive risk category across the catalogue. The same policy patterns (deny, require_approval) apply to each.
browser_cookies is one of the critical-risk operations in Screenshotsmcp. For the full severity-focused view — only the critical-risk tools with their recommended policies — see the breakdown for this server, or browse all critical-risk tools across every MCP server.
Get or set cookies for the current browser session. Use 'get' to read all cookies (useful for debugging auth). Use 'set' to add cookies (useful for setting auth tokens). Use 'clear' to delete all cookies.. It is categorised as a Destructive tool in the Screenshotsmcp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Add a rule in your Intercept YAML policy under the tools section for browser_cookies. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Screenshotsmcp MCP server.
browser_cookies is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the browser_cookies rule in your Intercept 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 Intercept policy for browser_cookies. 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_cookies is provided by the Screenshotsmcp MCP server (relievedattention992-smithery/screenshotsmcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept