AI agents call codeql_cwe_lookup to retrieve information from Musubix without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a database or knowledge base for security weakness information and returns it without modifying, executing, or deleting anything. The 'lookup' verb and informational purpose (Japanese explanations and recommended fixes) indicate pure data retrieval. Blast radius is minimal as misuse would only return information, not trigger harmful actions.
From the tool's definition Tool description states 'Look up CWE information' — a lookup operation is a retrieval action with no side effects. CWE (Common Weakness Enumeration) is public reference data.
Attacks that exploit this kind of access
Look up CWE information including Japanese explanations and recommended fixes. It is categorised as a Read tool in the Musubix MCP Server, which means it retrieves data without modifying state.
Register the Musubix MCP server in PolicyLayer and add a rule for codeql_cwe_lookup: 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.
codeql_cwe_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the codeql_cwe_lookup 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 codeql_cwe_lookup. 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.
codeql_cwe_lookup 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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