Register a running subprocess so monitors can distinguish slow builds from hung agents. Writes a per-PID file under the session
AI agents use storybloq_register_subprocess to create or update resources in Storybloq — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Storybloq environment.
This tool creates or modifies a file (per-PID file) to track subprocess state. This is a reversible write operation with no destructive capability, no code execution, and no data deletion. The blast radius is minimal—worst case, stale monitoring files accumulate, but the core application state remains intact. Confidence is high because the description explicitly states it 'Writes' a file.
From the tool's definition Writes a per-PID file under the session
Documented attack patterns abuse exactly the kind of access storybloq_register_subprocess gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Storybloq, and nothing reaches the server without passing your rules. This is the rule we recommend for storybloq_register_subprocess:
{
"version": "1",
"default": "deny",
"tools": {
"storybloq_register_subprocess": {
"limits": [
{
"counter": "storybloq_register_subprocess_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}storybloq_register_subprocess stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Register a running subprocess so monitors can distinguish slow builds from hung agents. Writes a per-PID file under the session. It is categorised as a Write tool in the Storybloq MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Storybloq MCP server in PolicyLayer and add a rule for storybloq_register_subprocess: 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 Storybloq. Nothing to install.
storybloq_register_subprocess is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the storybloq_register_subprocess 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 storybloq_register_subprocess. 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.
storybloq_register_subprocess is provided by the Storybloq MCP server (storybloq/storybloq). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 54 Storybloq tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
54 Storybloq tools catalogued and risk-classified — across an index of 42,500+ MCP servers.