array_symmetric_difference
Get symmetric difference (items in either but not both).
This record as markdown: /tools/io-tinyfn-tinyfn/array-symmetric-difference.md
What array_symmetric_difference does on TinyFn
AI agents call array_symmetric_difference to retrieve information from TinyFn without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
array1 | string | Yes | First comma-separated array |
array2 | string | Yes | Second comma-separated array |
Parameters from the server's own tool schema.
Why array_symmetric_difference is rated Low
This is a deterministic mathematical utility that performs set-theoretic computation on array inputs and returns a result. It does not create, modify, delete, or execute anything—it only reads input arrays and returns a computed symmetric difference. This aligns with the 'Read' category for data retrieval with no side effects.
From the tool's definition Tool name 'array_symmetric_difference' and description 'Get symmetric difference (items in either but not both)' indicate a pure mathematical/set operation that retrieves computed results without modifying data, creating side effects, or executing arbitrary…
Attacks that exploit this kind of access
The rule that runs array_symmetric_difference safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TinyFn, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For array_symmetric_difference, this is the rule to start with:
array_symmetric_difference is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every array_symmetric_difference call is checked against it from then on.
Questions about array_symmetric_difference
Get symmetric difference (items in either but not both). It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
array_symmetric_difference accepts 2 parameters: array1, array2. Required: array1, array2. The full parameter table on this page comes from the server's own tool schema.
Register the TinyFn MCP server in PolicyLayer and add a rule for array_symmetric_difference: 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 TinyFn. Nothing to install.
array_symmetric_difference is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the array_symmetric_difference 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 array_symmetric_difference. 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.
array_symmetric_difference is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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