This record as markdown: /tools/0xyg3n-claude-c2/mcp-backup.md
What mcp_backup does on Claude C2
AI agents call mcp_backup to retrieve information from Claude C2 without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why mcp_backup is rated Low
A backup operation reads/copies files to a backup location. However, given the server context ('command and control of remote systems') and sibling tools like amsi_bypass, bypassuac, and browser_creds — which suggest offensive/red-team capabilities — this 'backup' tool may have additional implications. At face value, backing up files is a Write/Read operation (copying data), not destructive.
From the tool's definition Backup MCP server files before editing
Attacks that exploit this kind of access
The rule that runs mcp_backup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude C2, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mcp_backup, this is the rule to start with:
mcp_backup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Claude C2, apply this rule, and every mcp_backup call is checked against it from then on.
Questions about mcp_backup
Backup MCP server files before editing. It is categorised as a Read tool in the Claude C2 MCP Server, which means it retrieves data without modifying state.
Register the Claude C2 MCP server in PolicyLayer and add a rule for mcp_backup: 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 C2. Nothing to install.
mcp_backup 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 mcp_backup 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 mcp_backup. 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.
mcp_backup is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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