This record as markdown: /tools/io-tinyfn-tinyfn/to-sentence-case.md
What to_sentence_case does on TinyFn
AI agents call to_sentence_case 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 |
|---|---|---|---|
text | string | Yes | Text to convert |
Parameters from the server's own tool schema.
Why to_sentence_case is rated Low
This is a deterministic text formatting utility that transforms the case of input text. It reads data, applies a transformation rule, and returns the result—characteristic of Read category tools. There is no creation, deletion, execution of code, or financial impact. Severity is low as misuse would only affect output formatting with no blast radius.
From the tool's definition Tool name 'to_sentence_case' and description 'Convert text to Sentence case' indicate a text transformation function that reads input and returns formatted output with no side effects, data modification, or external operations.
Attacks that exploit this kind of access
The rule that runs to_sentence_case 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 to_sentence_case, this is the rule to start with:
to_sentence_case 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 to_sentence_case call is checked against it from then on.
Questions about to_sentence_case
Convert text to Sentence case. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
to_sentence_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 to_sentence_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.
to_sentence_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 to_sentence_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 to_sentence_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.
to_sentence_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.
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