cache_recent_entries · LiveJournal MCP Server MCP

WHAT IT DOES

What cache_recent_entries does on LiveJournal MCP Server

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

WHY IT NEEDS A POLICY

Why cache_recent_entries needs a policy

The tool reads data from LiveJournal but also writes/saves entries to a local SQLite cache. The write to local cache is the most significant side effect. This is reversible (cache can be cleared) and has low blast radius as it only affects local storage.

From the tool's definition Fetch recent LiveJournal entries and save them to the local SQLite cache

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cache_recent_entries Rate-limited

cache_recent_entries 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": {
    "cache_recent_entries": {
      "limits": [
        {
          "counter": "cache_recent_entries_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 LiveJournal MCP Server, so you can run agents against it safely.

FAQ

Questions about cache_recent_entries

What does the cache_recent_entries tool do? +

Fetch recent LiveJournal entries and save them to the local SQLite cache. It is categorised as a Write tool in the LiveJournal 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 cache_recent_entries? +

Register the LiveJournal MCP Server MCP server in PolicyLayer and add a rule for cache_recent_entries: 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 LiveJournal MCP Server. Nothing to install.

What risk level is cache_recent_entries? +

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

Can I rate-limit cache_recent_entries? +

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

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

cache_recent_entries is provided by the LiveJournal MCP Server MCP server (pavelber/livejournal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.