This record as markdown: /tools/0xyg3n-claude-c2/ls.md
What ls does on Claude C2
AI agents call ls 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 ls is rated Low
The 'ls' command lists directory contents, which is a read-only operation that retrieves information about files and directories without executing code, modifying data, or causing irreversible changes. While the server context suggests capability for command and control of remote systems (concerning in itself), this specific tool performs only directory enumeration.
From the tool's definition Tool name and description indicate it 'List directory' - a non-destructive query operation that retrieves filesystem metadata without modification or side effects.
Attacks that exploit this kind of access
The rule that runs ls 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 ls, this is the rule to start with:
ls 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 ls call is checked against it from then on.
Questions about ls
List directory. Auto-selects client. 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 ls: 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.
ls 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 ls 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 ls. 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.
ls 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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