What is journaling-mcp CLAUDE.md?

Project instructions for an MCP server, a program that lets an AI agent use defined tools and data sources, for interactive journaling. It covers setup, commands, architecture, and core functions.

Use it when developing or maintaining the server, including recording conversations, creating journal summaries, and retrieving recent journal files.

It gives an agent the repository context needed to run, modify, and understand the journaling server correctly.

How mtct/journaling-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to mtct/journaling-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/mtct/journaling-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/mtct/journaling-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/mtct/journaling-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/mtct/journaling-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/mtct/journaling-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/mtct/journaling-mcp/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/mtct/journaling-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/mtct/journaling-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 479 This file is loaded in full into every session.

When invoked 479 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00479	$0.00479
Opus 5.5	$0.00192	$0.00192
Sonnet 5.5	$0.00096	$0.00096
Haiku 4.5	$0.00048	$0.00048

Measured 2mo ago against content hash ad277d72df02, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

journaling-mcp CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Message Control Protocol) server for interactive journaling with emotional analysis and automatic conversation saving. The server provides tools for recording conversations, generating summaries, and managing journal files.

Development Commands

Run the MCP server:

uv run server.py

Install dependencies:

uv sync

Architecture

Core Components

JournalConfig (server.py:8-77): Configuration management with environment variables and file path validation
FastMCP Server (server.py:82): Main MCP server instance with tools, resources, and prompts
Conversation Management: Global state tracking (server.py:85) with timestamped message logging

Key Functions

start_new_session(): Clears conversation log and starts fresh session
record_interaction(): Stores user/assistant message pairs with timestamps
generate_session_summary(): Creates markdown journal entry with conversation transcript and analysis
get_recent_journals(): Resource endpoint returning 5 most recent journal files

File Structure

Journal entries are saved as markdown files in the configured directory:

[JOURNAL_DIR]/
├── journal_2025-01-27.md
├── journal_2025-01-26.md
└── ...

Configuration

Environment variables in .env:

JOURNAL_DIR: Storage directory (default: "journal")
FILENAME_PREFIX: File name prefix (default: "journal")
FILE_EXTENSION: File extension (default: "md")

Security Features

Path validation ensures files stay within journal directory (server.py:69-76)
File extension enforcement
Relative path resolution to prevent directory traversal

MCP Integration

The server exposes:

Tools: Session management and conversation recording
Resources: journals://recent endpoint for accessing recent entries
Prompts: start_journaling for session initialization

Read the full file on GitHub · 72 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 72 lines · 479 tokens per session scan A ad277d72df02

Subscribe to this mod's changes

journaling-mcp CLAUDE.md is an instructions file published in the GitHub repository mtct/journaling-mcp (7 stars, last pushed 1y ago), licensed MIT. It adds 479 tokens to every session, about $0.0019 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,719 tokens

journaling-mcp: Instructions file for Claude Code