This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/deck-shuffle.md
What deck_shuffle does on UnClick
AI agents use deck_shuffle to create or update resources in UnClick, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your UnClick environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
deck_id | string | Yes | Deck ID to reshuffle |
Parameters from the server's own tool schema.
Why deck_shuffle is rated Medium
Reshuffling modifies the state of an existing deck (reorders its contents), which is a reversible data modification. No data is deleted, no code is executed, and there are no financial implications. Severity is low as the blast radius of misuse is minimal — at worst, a deck is reordered unexpectedly.
From the tool's definition Reshuffle an existing deck
Attacks that exploit this kind of access
The rule that runs deck_shuffle safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For deck_shuffle, this is the rule to start with:
deck_shuffle 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.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every deck_shuffle call is checked against it from then on.
Questions about deck_shuffle
Reshuffle an existing deck. It is categorised as a Write tool in the UnClick MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
deck_shuffle accepts 1 parameter: deck_id. Required: deck_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for deck_shuffle: 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 UnClick. Nothing to install.
deck_shuffle 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 deck_shuffle 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 deck_shuffle. 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.
deck_shuffle is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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