desaturate_color

Decrease color saturation by a percentage.

SERVERTinyFn SOURCEhttps://api.tinyfn.io/mcp/all/

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-tinyfn-tinyfn/desaturate-color.md

WHAT IT DOES

What desaturate_color does on TinyFn

AI agents call desaturate_color 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
`amount`	integer	—	Amount to desaturate (0-100)
`hex_color`	string	Yes	Hex color to desaturate

Parameters from the server's own tool schema.

RISK

Why desaturate_color is rated Low

The tool performs a mathematical transformation on a color value, returning a new color with reduced saturation. It is stateless, deterministic, and has no external side effects, making it a Read/compute operation. Misuse potential is negligible.

From the tool's definition Decrease color saturation by a percentage — this is a pure deterministic color computation with no side effects

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs desaturate_color 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 desaturate_color, this is the rule to start with:

desaturate_color Allowed

desaturate_color is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "desaturate_color": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every desaturate_color call is checked against it from then on.

FAQ

Questions about desaturate_color

What does the desaturate_color tool do? +

Decrease color saturation by a percentage. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.

What parameters does desaturate_color accept? +

desaturate_color accepts 2 parameters: amount, hex_color. Required: hex_color. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on desaturate_color? +

Register the TinyFn MCP server in PolicyLayer and add a rule for desaturate_color: 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.

What risk level is desaturate_color? +

desaturate_color is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit desaturate_color? +

Yes. Add a rate_limit block to the desaturate_color 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.

How do I block desaturate_color completely? +

Set action: deny in the PolicyLayer policy for desaturate_color. 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.

What MCP server provides desaturate_color? +

desaturate_color 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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