Repeated snapshots over a duration with optional shell trigger command launched at start.
AI agents invoke timed_capture to trigger actions in Procmon. 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.
The tool's core capability to launch shell commands at the start of a timed capture session makes this an Execute-class tool. While snapshot capture itself is observational (Read), the optional shell command execution component elevates it to Execute.
From the tool's definition Tool description states 'with optional shell trigger command launched at start' — this explicitly indicates execution of arbitrary shell commands.
Documented attack patterns abuse exactly the kind of access timed_capture gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Procmon, and nothing reaches the server without passing your rules. This is the rule we recommend for timed_capture:
{
"version": "1",
"default": "deny",
"tools": {
"timed_capture": {
"limits": [
{
"counter": "timed_capture_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}timed_capture 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.
Free to start. No card required.
Repeated snapshots over a duration with optional shell trigger command launched at start. It is categorised as a Execute tool in the Procmon MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Procmon MCP server in PolicyLayer and add a rule for timed_capture: 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 Procmon. Nothing to install.
timed_capture 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 timed_capture 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 timed_capture. 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.
timed_capture is provided by the Procmon MCP server (0xhackerfren/procmon-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 18 Procmon tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
18 Procmon tools catalogued and risk-classified — across an index of 42,500+ MCP servers.