jrnl-mcp: Instructions file for Claude Code

CLAUDE.md

jrnl-mcp CLAUDE.md is an instructions file for Claude Code from yostos/jrnl-mcp. It costs 1,546 tokens per session, scanned A, original, MIT.

A set of instructions for working on jrnl-mcp, a connector between an AI coding assistant and the jrnl command-line journal app. It covers project tracking and Git procedures.

In plain words
What is it for?
Checking the roadmap and task list, recording work, choosing the right Git branch, and preparing changes for review.
Why use it?
It helps an assistant follow the project's work plan and avoid breaking its protected-branch workflow.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is yostos/jrnl-mcp's own configuration. It tells Claude Code how to work on jrnl-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything jrnl-mcp configures โ†’

Reuse

Borrowing it

Nothing to install: this file belongs to yostos/jrnl-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/yostos/jrnl-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/yostos/jrnl-mcp

Made for: Claude Code.

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Per session 1,546 This file is loaded in full into every session.
When invoked 1,546 The same file โ€” it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file โ€” 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01546 $0.01546
Opus 5.5 $0.00618 $0.00618
Sonnet 5.5 $0.00309 $0.00309
Haiku 4.5 $0.00155 $0.00155

Measured 2mo ago against content hash c44aeac9e489, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

jrnl-mcp CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories โ€” prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency โ€” 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 ยท 191 lines

How it starts

The opening of the file, as written. The whole thing โ€” 191 lines โ€” 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.

๐Ÿ“‹ Work Tracking - START HERE

IMPORTANT: Before starting any work, check these documents in order:

  1. docs/roadmap.md - 3-phase improvement plan (Phase 1 โ†’ Phase 2 โ†’ Phase 3)

    • Overview of all planned improvements
    • Categorized by priority (high/medium/low)
    • Helps understand the big picture
  2. docs/todo.md - Detailed Phase 1 tasks with work logs

    • Most important for day-to-day work
    • Detailed task breakdowns with checkboxes
    • Work logs with timestamps and results
    • Next person reads this to continue work
  3. This file (CLAUDE.md) - Project overview and guidelines

    • Architecture and implementation requirements
    • Development guidelines and best practices

Git Workflow - MUST READ

CRITICAL: The main branch is protected. Direct pushes are blocked.

Before ANY Git Operation

git branch  # Always check current branch first

Required Workflow

develop (work here) โ†’ PR โ†’ main (protected)
  1. Always work on develop branch

    git checkout develop
    
  2. Commit and push to develop

    git add <files>
    git commit -m "message"
    git push origin develop
    
  3. Create PR to merge into main

    gh pr create --base main --head develop
    
  4. Never commit directly to main - It will be rejected by branch protection rules.

If You Accidentally Commit to Main

# Cherry-pick to develop
git checkout develop
git cherry-pick <commit-hash>
git push origin develop

# Reset main to remote
git checkout main
git reset --hard origin/main

Project Overview

This is a jrnl MCP (Model Context Protocol) server that provides a read-only API for AI assistants to access and analyze journal entries from the jrnl command-line tool.

Current State: Phase 1 improvements in progress (see docs/todo.md for details).

Read the full file on GitHub ยท 191 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.

  1. 2mo ago First seen ยท 191 lines ยท 1,546 tokens per session scan A c44aeac9e489

Subscribe to this mod's changes

jrnl-mcp CLAUDE.md is an instructions file published in the GitHub repository yostos/jrnl-mcp (0 stars, last pushed 9mo ago), licensed MIT. It adds 1,546 tokens to every session, about $0.0062 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 2026-09-01.

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