AI agents use create_notebook to create or update resources in SiYuan MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SiYuan MCP Server environment.
Creating a notebook is a data creation action that modifies the notebook structure but is reversible (can be deleted). It does not execute arbitrary code, delete data irreversibly, or move funds. It falls squarely into the Write category. Severity is medium because creating notebooks could clutter the system or consume resources, but the impact is localized and reversible.
From the tool's definition Tool name 'create_notebook' and description indicate creation of a new notebook. Server description confirms this supports 'notebook and document management' with create operations. This is a Write operation that creates new data structures reversibly.
Documented attack patterns abuse exactly the kind of access create_notebook gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SiYuan MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_notebook:
{
"version": "1",
"default": "deny",
"tools": {
"create_notebook": {
"limits": [
{
"counter": "create_notebook_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_notebook 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.
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创建新笔记本. It is categorised as a Write tool in the SiYuan MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the SiYuan MCP Server MCP server in PolicyLayer and add a rule for create_notebook: 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 SiYuan MCP Server. Nothing to install.
create_notebook 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 create_notebook 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 create_notebook. 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.
create_notebook is provided by the SiYuan MCP Server MCP server (xgq18237/siyuan_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 52 SiYuan MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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52 SiYuan MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.