picsum_list

List photos available on Lorem Picsum.

SERVERUnClick SOURCE@unclick/mcp-server

Low RISK CLASS

Category Read

Parameters 20 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/picsum-list.md

WHAT IT DOES

What picsum_list does on UnClick

AI agents call picsum_list 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
`page`	number	—	Page number (default 1)
`limit`	number	—	Photos per page (default 20, max 100)

Parameters from the server's own tool schema.

RISK

Why picsum_list is rated Low

This tool performs a retrieval/listing operation against a public photo service (Lorem Picsum). It has no side effects, does not execute code or commands, does not modify data, and does not involve financial transactions. The 'list' verb and passive retrieval nature clearly place it in the Read category with low severity.

From the tool's definition Tool name 'picsum_list' and description 'List photos available on Lorem Picsum' indicate a query operation that retrieves available photo metadata without modifying or deleting data.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

picsum_list Allowed

picsum_list 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": {
    "picsum_list": {}
  }
}

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

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

FAQ

Questions about picsum_list

What does the picsum_list tool do? +

List photos available on Lorem Picsum. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does picsum_list accept? +

picsum_list accepts 2 parameters: page, limit. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on picsum_list? +

Register the UnClick MCP server in PolicyLayer and add a rule for picsum_list: 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.

What risk level is picsum_list? +

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

Can I rate-limit picsum_list? +

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

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

picsum_list 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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