AI agents call fabric_cve_enrich to retrieve information from Git Steer without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves enriched CVE vulnerability information from the National Vulnerability Database (NVD). It performs a data lookup operation with no side effects—it does not modify repositories, execute code, delete data, or commit financial transactions. The returned data (severity, CVSS, NVD status, CWE, references) is informational only and used for security awareness.
From the tool's definition Tool fetches and returns vulnerability details from NVD; no modification, deletion, or execution of code. Uses verbs 'Fetch' and 'Returns' indicating read-only retrieval of public vulnerability data.
Attacks that exploit this kind of access
[git-fabric] Fetch enriched vulnerability details for a CVE from NVD. Returns severity, CVSS, NVD status, CWE, and references. It is categorised as a Read tool in the Git Steer MCP Server, which means it retrieves data without modifying state.
Register the Git Steer MCP server in PolicyLayer and add a rule for fabric_cve_enrich: 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 Git Steer. Nothing to install.
fabric_cve_enrich 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 fabric_cve_enrich 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 fabric_cve_enrich. 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.
fabric_cve_enrich is provided by the Git Steer MCP server (ry-ops/git-steer). 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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