High-Risk MCP Tools
High-risk MCP tools trigger processes with real-world side effects. A single call can start expensive compute jobs, send mass notifications, or kick off multi-step workflows. Rate limits and argument validation are essential; approval for expensive paths is recommended.
Attacks targeting high-risk tools
Named attack patterns where tools at this severity have produced real incidents. Each links to the full case and the defensive policy.
Servers with high-risk tools
Showing 50 of 404 servers. Each server link opens its capability-level browse; each tool opens its profile with the recommended policy.
- Propresenter 47 high-risk tools
- Docker 18 high-risk tools
- Mcp Sitecore 17 high-risk tools
- Playwright 17 high-risk tools
- Chrome DevTools 15 high-risk tools
- Edict Lang 15 high-risk tools
- Leaper Vision Toolkit 15 high-risk tools
- Syncline 14 high-risk tools
- Aibtc 14 high-risk tools
- Coolify 12 high-risk tools
- Railway Infrastructure Manager 12 high-risk tools
- Appium 11 high-risk tools
- Deepseek 11 high-risk tools
- Preflight Ios 11 high-risk tools
- Fleet 10 high-risk tools
- Srv D7aoqmh5pdvs7391dcqg 10 high-risk tools
- Chrome Debugger MCP 9 high-risk tools
- Scrcpy 9 high-risk tools
- Brandcode MCP 9 high-risk tools
- Chrome Devtools 8 high-risk tools
- Build 8 high-risk tools
- Awx 8 high-risk tools
- Terminal 8 high-risk tools
- Aaaa Nexus 8 high-risk tools
- Railway MCP Server 8 high-risk tools
- AiPayGen 7 high-risk tools
- Browserous - Instant Browser for Your Agent 7 high-risk tools
- BrowserTools 7 high-risk tools
- AI Marketing Agent — SEO, Leads & Social by Citedy 7 high-risk tools
- Scicomp Molecular 7 high-risk tools
- Cargo 7 high-risk tools
- Mcp Debugger 7 high-risk tools
- Wechat Devtools 7 high-risk tools
- Autodock 7 high-risk tools
- Salesforce 7 high-risk tools
- AndroJack MCP 6 high-risk tools
- BrowserStack 6 high-risk tools
- Rube 6 high-risk tools
- Delx MCP Server 6 high-risk tools
- Mcp Api 6 high-risk tools
- Foundry Zksync 6 high-risk tools
- Looking Glass 6 high-risk tools
- Metabase Analytics Integration Server 6 high-risk tools
- Agent Passport System — Cryptographic Identity for AI Agents 5 high-risk tools
- ArcAgent MCP 5 high-risk tools
- COTI MCP Server 5 high-risk tools
- Dbt 5 high-risk tools
- Hyperplexity 5 high-risk tools
- Ssh Licco 5 high-risk tools
- Cashpilot 5 high-risk tools
See all tools in execute.
Other risk levels
Frequently asked questions
What makes a tool high risk?
High-risk MCP tools are Execute-class: they trigger processes or run actions with side effects that reach beyond the immediate call. A build starts running, a notification fan-out begins, a workflow executes multiple downstream steps. The tool returns before the side effects finish, which makes runaway loops particularly dangerous.
What policy pattern do I need for Execute tools?
Rate-limit at two layers: per-tool call count and per-session session duration. Add argument validation so malformed inputs fail at the proxy, not inside the server. For expensive paths (CI runs, mass sends), require human approval.
How does this differ from critical-risk tools?
Critical tools are irreversible after one call. High tools are reversible or reversible-with-effort but can be expensive. The exposure is multiplicative: one runaway agent triggering 1,000 notifications each hour is more dangerous than one destructive call you can recover from.
What attacks target Execute tools?
Runaway tool loops dominate the high-risk category — self-sustaining loops burn through API quotas and third-party billing. Destructive action autonomy spills over when Execute tools chain into Destructive ones. Prompt injection via tool results compounds the problem.
What is the recommended rate limit?
Default to per-agent rate limits of 10/minute for destructive-adjacent Execute operations, 60/minute for benign ones. Session-wide call-count budgets prevent multi-hour loops. For coordinating multi-agent systems, add round-trip limits to break infinite ping-pong patterns.
Enforce policies on high-risk tools
Scans your MCP config and generates enforcement policies for every server.
npx -y @policylayer/intercept init