Connect via Chrome 146+ native WebMCP protocol. Auto-detects WebMCP, falls back to CDP. [USE WHEN] • Chrome 146+ with chrome://flags/#enable-webmcp-testing enabled • Prefer this over connect_cdp when Chrome WebMCP is available [SETUP] 1. Chrome 146+ — open chrome://flags/#enable-webmcp-testing → ...
Risk signalsAccepts URL/endpoint input (url)
Part of the Flutter Skill server.
Free to start. No card required.
AI agents use connect_webmcp to create or modify resources in Flutter Skill. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call connect_webmcp repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Flutter Skill.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"connect_webmcp": {
"limits": [
{
"counter": "connect_webmcp_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Flutter Skill policy for all 13 tools.
These attack patterns abuse exactly the kind of access connect_webmcp gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Connect via Chrome 146+ native WebMCP protocol. Auto-detects WebMCP, falls back to CDP. [USE WHEN] • Chrome 146+ with chrome://flags/#enable-webmcp-testing enabled • Prefer this over connect_cdp when Chrome WebMCP is available [SETUP] 1. Chrome 146+ — open chrome://flags/#enable-webmcp-testing → Enabled → Restart. It is categorised as a Write tool in the Flutter Skill MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Flutter Skill MCP server in PolicyLayer and add a rule for connect_webmcp: 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 Flutter Skill. Nothing to install.
connect_webmcp is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the connect_webmcp 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 connect_webmcp. 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.
connect_webmcp is provided by the Flutter Skill MCP server (flutter-skill). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 13 Flutter Skill tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.