This record as markdown: /tools/io-tinyfn-tinyfn/name-to-hex.md
What name_to_hex does on TinyFn
AI agents call name_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 |
|---|---|---|---|
name | string | Yes | CSS color name |
Parameters from the server's own tool schema.
Why name_to_hex is rated Low
This is a deterministic utility function that retrieves/transforms data without modifying any state, creating resources, executing external code, deleting data, or affecting financial systems. It is a read-only conversion tool with minimal security risk.
From the tool's definition Tool name 'name_to_hex' and description 'Convert a CSS color name to hex' indicate a pure data transformation with no side effects—it takes a CSS color name as input and returns its hexadecimal representation.
Attacks that exploit this kind of access
The rule that runs name_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 name_to_hex, this is the rule to start with:
name_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 name_to_hex call is checked against it from then on.
Questions about name_to_hex
Convert a CSS color name to hex. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
name_to_hex accepts 1 parameter: name. Required: name. 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 name_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.
name_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 name_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 name_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.
name_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