tag_normalize_apply · Vector Memory MCP: Risk & Policy

WHAT IT DOES

What tag_normalize_apply does on Vector Memory MCP

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

WHY IT NEEDS A POLICY

Why tag_normalize_apply needs a policy

The tool likely modifies tag data by normalizing and applying canonical tag forms to memory records. This is reversible (tags can be re-normalized or reverted), making it Write rather than Destructive. However, without an explicit description, confidence is reduced to 0.7.

From the tool's definition Tool name 'tag_normalize_apply' suggests applying normalization to tags, and the server provides tag management features including 'get_canonical_tags' and 'get_tag_weights'. The 'apply' verb indicates modification of existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tag_normalize_apply Rate-limited

tag_normalize_apply 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": {
    "tag_normalize_apply": {
      "limits": [
        {
          "counter": "tag_normalize_apply_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about tag_normalize_apply

What does the tag_normalize_apply tool do? +

tag_normalize_apply. It is categorised as a Write tool in the Vector Memory MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tag_normalize_apply? +

Register the Vector Memory MCP server in PolicyLayer and add a rule for tag_normalize_apply: 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 Vector Memory MCP. Nothing to install.

What risk level is tag_normalize_apply? +

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

Can I rate-limit tag_normalize_apply? +

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

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

tag_normalize_apply is provided by the Vector Memory MCP server (xsaven/vector-memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.