link_assets · Picsha AI MCP Server MCP: Risk & Policy

WHAT IT DOES

What link_assets does on Picsha AI MCP Server

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

WHY IT NEEDS A POLICY

Why link_assets needs a policy

This tool creates a relationship/association between two existing assets. It modifies metadata/relational data in the DAM system but does not delete, execute code, or involve finances. It is reversibly a write operation (links can typically be unlinked), hence Write at medium severity since misconfigured links could corrupt asset hierarchy or relationships.

From the tool's definition Link a source/parent asset to a target/child asset...with a custom relationship description

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

link_assets Rate-limited

link_assets 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": {
    "link_assets": {
      "limits": [
        {
          "counter": "link_assets_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Picsha AI MCP Server, so you can run agents against it safely.

FAQ

Questions about link_assets

What does the link_assets tool do? +

Link a source/parent asset to a target/child asset (e.g. variations, derived formats, social crops) with a custom relationship description. It is categorised as a Write tool in the Picsha AI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on link_assets? +

Register the Picsha AI MCP Server MCP server in PolicyLayer and add a rule for link_assets: 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 Picsha AI MCP Server. Nothing to install.

What risk level is link_assets? +

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

Can I rate-limit link_assets? +

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

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

link_assets is provided by the Picsha AI MCP Server MCP server (picsha-ai/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.