This record as markdown: /tools/io-tinyfn-tinyfn/cmyk-to-hex.md
What cmyk_to_hex does on TinyFn
AI agents call cmyk_to_hex 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 |
|---|---|---|---|
c | integer | Yes | Cyan (0-100) |
k | integer | Yes | Key/Black (0-100) |
m | integer | Yes | Magenta (0-100) |
y | integer | Yes | Yellow (0-100) |
Parameters from the server's own tool schema.
Why cmyk_to_hex is rated Low
This is a deterministic mathematical/conversion utility that reads color values in CMYK format and outputs the equivalent hexadecimal color code. It has no capability to modify data, execute external commands, delete information, or affect financial systems. It belongs in the Read category as a pure transformation function.
From the tool's definition Tool name 'cmyk_to_hex' and description 'Convert CMYK to hex color' indicate a simple data conversion operation. No modification, execution, deletion, or financial operations occur.
Attacks that exploit this kind of access
The rule that runs cmyk_to_hex 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 cmyk_to_hex, this is the rule to start with:
cmyk_to_hex 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 cmyk_to_hex call is checked against it from then on.
Questions about cmyk_to_hex
Convert CMYK to hex color. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
cmyk_to_hex accepts 4 parameters: c, k, m, y. Required: c, k, m, y. 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 cmyk_to_hex: 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.
cmyk_to_hex 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 cmyk_to_hex 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 cmyk_to_hex. 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.
cmyk_to_hex 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.
More on TinyFn, and thousands of servers like it.
This server
Across the catalogue