syscall_ebpf_trace
Trace syscalls on Linux with eBPF. Requires root or CAP_BPF.
This record as markdown: /tools/io-github-vmoranv-jshookmcp/syscall-ebpf-trace.md
What syscall_ebpf_trace does on Jshookmcp
AI agents invoke syscall_ebpf_trace to trigger actions in Jshookmcp. 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.
Why syscall_ebpf_trace is rated High
Runs privileged eBPF kernel tracing, executing low-level system monitoring with root access.
From the tool's definition Trace syscalls on Linux with eBPF. Requires root or CAP_BPF
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
The rule that runs syscall_ebpf_trace safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For syscall_ebpf_trace, this is the rule to start with:
syscall_ebpf_trace stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every syscall_ebpf_trace call is checked against it from then on.
Questions about syscall_ebpf_trace
Trace syscalls on Linux with eBPF. Requires root or CAP_BPF. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Jshook MCP server in PolicyLayer and add a rule for syscall_ebpf_trace: 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 Jshookmcp. Nothing to install.
syscall_ebpf_trace 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 syscall_ebpf_trace 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 syscall_ebpf_trace. 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.
syscall_ebpf_trace is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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