kb_update_triples

A write tool on the Container- MCP server.

SERVERContainer-MCP SOURCE54rt1n/container-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/54rt1n-container-mcp/kb-update-triples.md

WHAT IT DOES

What kb_update_triples does on Container-MCP

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

RISK

Why kb_update_triples is rated Medium

The tool modifies existing data (triples in a knowledge base) reversibly—updates can be undone by reverting to previous values—placing it in the Write category. Severity is medium because knowledge base corruption could affect system behavior or data integrity, but it is not inherently destructive (not irreversible) or financial.

From the tool's definition Tool name 'kb_update_triples' suggests modification of knowledge base triples (RDF-like structured data). Sibling tools include kb_create_document, kb_manage, and kb_read, establishing this as a knowledge base operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs kb_update_triples safely

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

kb_update_triples Rate-limited

kb_update_triples 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": {
    "kb_update_triples": {
      "limits": [
        {
          "counter": "kb_update_triples_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 Container-MCP, apply this rule, and every kb_update_triples call is checked against it from then on.

FAQ

Questions about kb_update_triples

What does the kb_update_triples tool do? +

kb_update_triples is a write tool on the Container MCP server. It is categorised as a Write tool in the Container-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 kb_update_triples? +

Register the Container MCP server in PolicyLayer and add a rule for kb_update_triples: 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 Container-MCP. Nothing to install.

What risk level is kb_update_triples? +

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

Can I rate-limit kb_update_triples? +

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

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

kb_update_triples is provided by the Container MCP server (54rt1n/container-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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