array_partition
Partition array into chunks of specified size.
This record as markdown: /tools/io-tinyfn-tinyfn/array-partition.md
What array_partition does on TinyFn
AI agents call array_partition 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 |
|---|---|---|---|
size | integer | Yes | Partition size |
items | string | Yes | Comma-separated items |
Parameters from the server's own tool schema.
Why array_partition is rated Low
This is a pure computational utility that takes an array and a size parameter, then returns partitioned chunks. It has no side effects, does not modify the original data, does not execute arbitrary code, and does not access external systems. It falls squarely into the Read category as a data retrieval/transformation tool with minimal risk.
From the tool's definition Tool 'array_partition' partitions an array into chunks of specified size. This is a data transformation operation that reads and reorganizes array data without modifying, deleting, or executing external code.
Attacks that exploit this kind of access
The rule that runs array_partition 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_partition, this is the rule to start with:
array_partition 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_partition call is checked against it from then on.
Questions about array_partition
Partition array into chunks of specified size. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
array_partition accepts 2 parameters: size, items. Required: size, items. 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_partition: 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_partition 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_partition 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_partition. 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_partition 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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