This record as markdown: /tools/io-github-arielbk-anki-mcp/gui-undo.md
What gui_undo does on Anki
AI agents call gui_undo as a supporting operation in Anki workflows.
Why gui_undo is rated Low
The name 'gui_undo' suggests undoing the last action in the Anki GUI, which could reverse a prior write or destructive operation. However, since the description is empty, the exact behavior is unknown. Undo operations are typically reversible by nature, suggesting a Write or Read level action at most. Given the ambiguity, categorizing as Other with low confidence due to insufficient information.
From the tool's definition Tool name is 'gui_undo' and description is empty or uninformative.
Attacks that exploit this kind of access
The rule that runs gui_undo safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Anki, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gui_undo, this is the rule to start with:
gui_undo gets a rate cap, and everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Anki, apply this rule, and every gui_undo call is checked against it from then on.
Questions about gui_undo
gui_undo is a other tool on the Anki MCP server. It is categorised as a Other tool in the Anki MCP Server, which means it performs auxiliary operations.
Register the Anki MCP server in PolicyLayer and add a rule for gui_undo: 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. Nothing to install.
gui_undo is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the gui_undo 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 gui_undo. 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.
gui_undo is provided by the Anki MCP server (@arielbk/anki-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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