Create a single note. For multiple notes, use batch_create_notes instead (10-20 notes per batch recommended). Always call get_note_type_info first to understand required fields.
AI agents use create_note to create or update resources in Anki MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Anki MCP Server environment.
This tool creates new flashcard notes within Anki, which is a reversible modification of data. It does not execute arbitrary code, delete data, move money, or trigger external operations. The sibling tool delete_note exists separately, confirming this tool is purely creational. The severity is low because creating a single note has minimal blast radius—an erroneous note can be easily deleted via the delete_note tool.
From the tool's definition Tool description states it will "Create a single note" in Anki flashcard software. The verb "create" and the action of adding new flashcard data indicates a write operation that modifies the Anki database reversibly.
Documented attack patterns abuse exactly the kind of access create_note gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Anki MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_note:
{
"version": "1",
"default": "deny",
"tools": {
"create_note": {
"limits": [
{
"counter": "create_note_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_note 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.
Create a single note. For multiple notes, use batch_create_notes instead (10-20 notes per batch recommended). Always call get_note_type_info first to understand required fields. It is categorised as a Write tool in the Anki MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Anki MCP Server MCP server in PolicyLayer and add a rule for create_note: 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 Anki MCP Server. Nothing to install.
create_note 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_note 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_note. 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_note is provided by the Anki MCP Server MCP server (nailuogg/anki-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Anki MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
12 Anki MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.