# kb_update_triples

A write tool on the Container-MCP MCP server.

Agent View of the PolicyLayer registry record for `kb_update_triples`. HTML page: https://policylayer.com/tools/54rt1n-container-mcp/kb-update-triples

## Facts

- Tool: `kb_update_triples`
- Server: Container-MCP (`54rt1n/container-mcp`) — https://policylayer.com/tools/54rt1n-container-mcp.md
- Homepage: https://github.com/54rt1n/container-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "kb_update_triples",
    "arguments": {}
  }
}
```

## 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 own 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."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Container-MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "kb_update_triples": {
      "limits": [
        {
          "counter": "kb_update_triples_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Container-MCP (26)

- `fs_delete` — Destructive — https://policylayer.com/tools/54rt1n-container-mcp/fs-delete.md
- `list_delete` — Destructive — https://policylayer.com/tools/54rt1n-container-mcp/list-delete.md
- `system_run_command` — Execute — https://policylayer.com/tools/54rt1n-container-mcp/system-run-command.md
- `system_run_python` — Execute — https://policylayer.com/tools/54rt1n-container-mcp/system-run-python.md
- `web_browse` — Execute — https://policylayer.com/tools/54rt1n-container-mcp/web-browse.md
- `fs_list` — Read — https://policylayer.com/tools/54rt1n-container-mcp/fs-list.md
- `fs_read` — Read — https://policylayer.com/tools/54rt1n-container-mcp/fs-read.md
- `health_check` — Read — https://policylayer.com/tools/54rt1n-container-mcp/health-check.md
- `kb_read` — Read — https://policylayer.com/tools/54rt1n-container-mcp/kb-read.md
- `kb_search` — Read — https://policylayer.com/tools/54rt1n-container-mcp/kb-search.md
- `list_get` — Read — https://policylayer.com/tools/54rt1n-container-mcp/list-get.md
- `list_search` — Read — https://policylayer.com/tools/54rt1n-container-mcp/list-search.md
- `market_query` — Read — https://policylayer.com/tools/54rt1n-container-mcp/market-query.md
- `rss_fetch` — Read — https://policylayer.com/tools/54rt1n-container-mcp/rss-fetch.md
- `system_env_var` — Read — https://policylayer.com/tools/54rt1n-container-mcp/system-env-var.md
- `web_scrape` — Read — https://policylayer.com/tools/54rt1n-container-mcp/web-scrape.md
- `web_search` — Read — https://policylayer.com/tools/54rt1n-container-mcp/web-search.md
- `fs_apply_diff` — Write — https://policylayer.com/tools/54rt1n-container-mcp/fs-apply-diff.md
- `fs_move` — Write — https://policylayer.com/tools/54rt1n-container-mcp/fs-move.md
- `fs_write` — Write — https://policylayer.com/tools/54rt1n-container-mcp/fs-write.md
- `kb_create_document` — Write — https://policylayer.com/tools/54rt1n-container-mcp/kb-create-document.md
- `kb_manage` — Write — https://policylayer.com/tools/54rt1n-container-mcp/kb-manage.md
- `kb_write_content` — Write — https://policylayer.com/tools/54rt1n-container-mcp/kb-write-content.md
- `list_create` — Write — https://policylayer.com/tools/54rt1n-container-mcp/list-create.md
- `list_modify` — Write — https://policylayer.com/tools/54rt1n-container-mcp/list-modify.md
- `list_update` — Write — https://policylayer.com/tools/54rt1n-container-mcp/list-update.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=54rt1n-container-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/54rt1n-container-mcp