avatar_url
Generate a text-based avatar image URL with initials.
This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/avatar-url.md
What avatar_url does on UnClick
AI agents call avatar_url to retrieve information from UnClick 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 | — | Name for the avatar initials (default User) |
size | number | — | Size in pixels (default 200) |
color | string | — | Text hex color (default fff) |
format | string | — | Format: svg or png (default svg) |
background | string | — | Background hex color or 'random' |
Parameters from the server's own tool schema.
Why avatar_url is rated Low
The tool generates a URL pointing to an avatar image based on provided initials. This is a read operation that returns data without modifying any state, deleting data, executing code, or performing financial transactions. The blast radius of misuse is minimal — worst case, the agent generates unwanted avatar URLs, which has no harmful consequence.
From the tool's definition Tool name is 'avatar_url' and description states 'Generate a text-based avatar image URL with initials' — this generates and returns a URL, a read-only retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
The rule that runs avatar_url safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For avatar_url, this is the rule to start with:
avatar_url 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 UnClick, apply this rule, and every avatar_url call is checked against it from then on.
Questions about avatar_url
Generate a text-based avatar image URL with initials. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
avatar_url accepts 5 parameters: name, size, color, format, background. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for avatar_url: 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 UnClick. Nothing to install.
avatar_url 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 avatar_url 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 avatar_url. 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.
avatar_url is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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