image_favicon

SERVERTanod SOURCEhttps://tanod.dev/mcp

Medium RISK CLASS

Category Write

Parameters 70 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-tanod-tanod/image-favicon.md

WHAT IT DOES

What image_favicon does on Tanod

AI agents use image_favicon to create or update resources in Tanod, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tanod environment.

Parameter	Type	Required	Description
`fit`	string	—	Squaring a non-square image: cover (default, centre crop) or contain (padded with background).
`url`	object	—	Public http(s) URL of the image (at most 10 MB; private, internal and IP-literal hosts are refused); or use image_base64.
`output`	string	—	base64 (default): inline. url: stored for 24 hours; link, metadata.
`background`	object	—	contain padding (default transparent).
`auto_orient`	boolean	—	Apply the EXIF orientation first (default true).
`image_base64`	object	—	The image as standard or url-safe base64 (at most 10 MB decoded; a data:image/...;base64, prefix is fine); or use url.
`apple_background`	object	—	apple-touch-icon fill (default #ffffff).

Parameters from the server's own tool schema.

RISK

Why image_favicon is rated Medium

An AI agent can call image_favicon faster than any human can review: one bad instruction and it creates or modifies resources in Tanod by the hundred, each call as confident as the last.

Risk signalsAccepts URL/endpoint input (url)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs image_favicon safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tanod, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For image_favicon, this is the rule to start with:

image_favicon Rate-limited

image_favicon stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "image_favicon": {
      "limits": [
        {
          "counter": "image_favicon_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about image_favicon

What does the image_favicon tool do? +

imagepeek: Generate a favicon set from an image. For plain sizes use image_thumbnail. Returns a favicon set from one image: favicon.ico (16, 32, 48 px), favicon-32x32.png, apple-touch-icon.png (180 px, flattened on apple_background, white by default), icon-192.png and icon-512.png, plus the HTML <link> snippet and the web-manifest icons; a source under 512 px is upscaled, with a note. The images come back in images. Reads PNG, JPEG, WebP, GIF, TIFF, BMP, ICO and AVIF; other formats and images over 40 megapixels are refused (not charged). Output: base64 data_base64, without EXIF, GPS, XMP or IPTC; over 15 MB or 50 megapixels is a 413 (not charged). Images are not logged; a result is kept only with output "url" (24 h). Typically 0.5-2 s. Price: USD 0.003. Free: 3 imagepeek calls per IP per UTC day. Docs: https://tanod.dev/learn/favicon-generator-api.html. It is categorised as a Write tool in the Tanod MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does image_favicon accept? +

image_favicon accepts 7 parameters: fit, url, output, background, auto_orient, image_base64, apple_background. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on image_favicon? +

Register the Tanod MCP server in PolicyLayer and add a rule for image_favicon: 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 Tanod. Nothing to install.

What risk level is image_favicon? +

image_favicon is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit image_favicon? +

Yes. Add a rate_limit block to the image_favicon 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 image_favicon completely? +

Set action: deny in the PolicyLayer policy for image_favicon. 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 image_favicon? +

image_favicon is provided by the Tanod MCP server (https://tanod.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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