AI agents invoke workflow_gate to trigger actions in Musubix. 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.
The tool executes quality gate checks per phase and returns results. This is an active execution of validation/check logic rather than a simple read. It may trigger downstream gating decisions (pass/fail) that affect workflow progression. No clear destructive or financial implications, but it runs operational checks that could block or permit workflow phases.
From the tool's definition "フェーズのクオリティゲートを実行します" (Executes quality gates for phases) and "品質チェックを実行し" (executes quality checks)
Attacks that exploit this kind of access
フェーズのクオリティゲートを実行します。 フェーズごとに定義された品質チェックを実行し、結果を返します。. It is categorised as a Execute tool in the Musubix MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Musubix MCP server in PolicyLayer and add a rule for workflow_gate: 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 Musubix. Nothing to install.
workflow_gate 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 workflow_gate 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 workflow_gate. 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.
workflow_gate is provided by the Musubix MCP server (@nahisaho/musubix-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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