Send a prompt to Qwen via qwen CLI. Prompt sent via stdin (safe for any content). Models: qwen-turbo (fast, default), qwen-plus (deep analysis, code review), qwen-long (large context). Detects quota/auth errors.
AI agents invoke qwen_chat to trigger actions in Claude Concilium. 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.
This tool executes an external CLI process (qwen CLI) to interact with the Qwen AI service. Invoking a CLI subprocess is an Execute-category action — it triggers an external operation whose effects depend on the arguments passed. While the tool's primary purpose is chat/analysis (which might suggest Read), it runs a shell command to achieve this, placing it in Execute.
From the tool's definition Send a prompt to Qwen via qwen CLI. Prompt sent via stdin
Documented attack patterns abuse exactly the kind of access qwen_chat gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Concilium, and nothing reaches the server without passing your rules. This is the rule we recommend for qwen_chat:
{
"version": "1",
"default": "deny",
"tools": {
"qwen_chat": {
"limits": [
{
"counter": "qwen_chat_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}qwen_chat 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.
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Send a prompt to Qwen via qwen CLI. Prompt sent via stdin (safe for any content). Models: qwen-turbo (fast, default), qwen-plus (deep analysis, code review), qwen-long (large context). Detects quota/auth errors. It is categorised as a Execute tool in the Claude Concilium MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Claude Concilium MCP server in PolicyLayer and add a rule for qwen_chat: 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 Claude Concilium. Nothing to install.
qwen_chat 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 qwen_chat 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 qwen_chat. 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.
qwen_chat is provided by the Claude Concilium MCP server (spyrae/claude-concilium). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Claude Concilium, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
5 Claude Concilium tools catalogued and risk-classified — across an index of 43,000+ MCP servers.