merge_tags

Merge two tags into a target tag across all entities

SERVEREnhanced Knowledge Graph Memory Server SOURCEdanielsimonjr/memory-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/danielsimonjr-memory-mcp/merge-tags.md

WHAT IT DOES

What merge_tags does on Enhanced Knowledge Graph Memory Server

AI agents use merge_tags to create or update resources in Enhanced Knowledge Graph Memory Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Enhanced Knowledge Graph Memory Server environment.

RISK

Why merge_tags is rated Medium

The tool modifies existing data (tag assignments across entities) by merging tags, which constitutes a Write operation. While the action is reversible (tags can be re-split or reassigned), it has a moderate blast radius because merging tags affects potentially all entities in the graph and could corrupt organizational relationships if applied incorrectly by an AI agent.

From the tool's definition merge_tags: 'Merge two tags into a target tag across all entities' - this modifies tag metadata across potentially many entities in the knowledge graph by consolidating tags, which is a reversible but system-wide write operation affecting data organization.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs merge_tags safely

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

merge_tags Rate-limited

merge_tags 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": {
    "merge_tags": {
      "limits": [
        {
          "counter": "merge_tags_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 Enhanced Knowledge Graph Memory Server, apply this rule, and every merge_tags call is checked against it from then on.

FAQ

Questions about merge_tags

What does the merge_tags tool do? +

Merge two tags into a target tag across all entities. It is categorised as a Write tool in the Enhanced Knowledge Graph Memory 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 merge_tags? +

Register the Enhanced Knowledge Graph Memory Server MCP server in PolicyLayer and add a rule for merge_tags: 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 Enhanced Knowledge Graph Memory Server. Nothing to install.

What risk level is merge_tags? +

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

Can I rate-limit merge_tags? +

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

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

merge_tags is provided by the Enhanced Knowledge Graph Memory Server MCP server (danielsimonjr/memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Enhanced Knowledge Graph Memory Server, and thousands of servers like it.

This server

All 225 Enhanced Knowledge Graph Memory Server tools →

Across the catalogue

save_tags on Mcptube Vision → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →