create_location_entry

THE RISK

Medium Risk

Why create_location_entry needs a policy

The tool creates a new journal entry with location information. This is a reversible write operation—entries can be deleted or edited afterwards—and carries no destructive, financial, or execution risk. The blast radius is low since it simply adds user-authored journal content. The confidence is high based on clear evidence from both the tool name and description.

From the tool's definition Tool name contains 'create' and description states 'Create a journal entry', indicating a write operation that adds new data to the Day One journal system.

Documented attack patterns abuse exactly the kind of access create_location_entry gives an agent:

POLICY

How to control create_location_entry

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-DayOne, and nothing reaches the server without passing your rules. This is the rule we recommend for create_location_entry:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_location_entry": {
      "limits": [
        {
          "counter": "create_location_entry_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_location_entry 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.

Create a free account and register MCP-DayOne — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP-DayOne tools

Write create_entry_with_attachments Create a journal entry with file attachments (photos, videos, audio, PDFs) Write create_journal_entry Create a new entry in Day One journal with support for attachments, location, and metadata Read get_entries_by_date Get journal entries for a specific date across multiple years ( Read get_entry_count Get the total number of entries in a journal Read get_entry_count_from_db Get actual entry count from Day One database Read list_journals List all available Day One journals Read list_journals_from_db List all journals from database with entry counts Read read_recent_entries Read recent journal entries from Day One database

All 10 MCP-DayOne tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_location_entry

What does the create_location_entry tool do? +

Create a journal entry with location coordinates. It is categorised as a Write tool in the MCP-DayOne MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_location_entry? +

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

What risk level is create_location_entry? +

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

Can I rate-limit create_location_entry? +

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

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

create_location_entry is provided by the MCP-DayOne MCP server (quevin/mcp-dayone). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-DayOne tool call.

Start from MCP-DayOne, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →