AI agents call swap_case to retrieve information from TinyFn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
text | string | Yes | Text to convert |
Parameters from the server's own tool schema.
This is a deterministic text utility that reads input and returns a transformed string. It has no capability to modify data structures, execute code, delete information, or perform any irreversible action. It belongs in the Read category as a data retrieval/transformation tool with minimal risk.
From the tool's definition Tool name 'swap_case' and description 'Swap case of each character' indicate a pure string transformation that returns modified text without side effects, persistent changes, or external operations.
Attacks that exploit this kind of access
Swap case of each character. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
swap_case accepts 1 parameter: text. Required: text. 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 swap_case: 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.
swap_case 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 swap_case 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 swap_case. 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.
swap_case 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.
swap_case is one line of TinyFn's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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