journal

journal is a command for Claude Code from RNA4219/memx-core. It costs 0 tokens per session (198 once invoked), scanned A, original, MIT.

A command for adding a dated entry to the memx journal store, which is a time-ordered record of project or session events. Entries can be assigned to a working scope such as a project or session.

In plain words
What is it for?
Use it to record project updates, completed work, decisions, or session notes with a scope and log content.
Why use it?
It keeps decisions, progress, and events in one searchable log instead of leaving them only in chat or memory.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/rna4219/memx-core/journal
Clone the repo
git clone --depth 1 https://github.com/RNA4219/memx-core

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.

agentmods badge for journal

README.md
[![agentmods](https://agentmods.dev/badge/commands/rna4219/memx-core/journal.svg)](https://agentmods.dev/commands/rna4219/memx-core/journal)
Your own site
<a href="https://agentmods.dev/commands/rna4219/memx-core/journal"><img src="https://agentmods.dev/badge/commands/rna4219/memx-core/journal.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 198 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00198
Opus 5 $0.00000 $0.00099
Sonnet 5 $0.00000 $0.00040
Haiku 4.5 $0.00000 $0.00020

Measured 4d ago against content hash 227f98f19d7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

journal 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 4d 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/commands/journal.md · 33 lines

What it actually says

Add Journal Entry

Add a time-series log entry to memx journal store.

Usage

/journal --scope <scope> <log content>

Required Arguments

  • --scope: Working scope (e.g., project:memx, session:abc, self)

What it does

  1. Creates a journal entry with the specified working scope
  2. Journal entries are time-ordered logs (progress, decisions, events)
  3. Can be filtered by scope later

Example

/journal --scope project:memx Completed CRUD implementation for journal store

Implementation

Use the Bash tool to run:

cd C:/Users/ryo-n/Codex_dev/memx-core/memx_spec_v3/go && go run ./cmd/mem in journal --title "<auto-generated title>" --body "<log content>" --scope "<scope>" --sensitivity internal
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. 4d ago First seen · 33 lines · 0 tokens per session scan A 227f98f19d7e

Subscribe to this mod's changes

journal is a command published in the GitHub repository RNA4219/memx-core (23 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 198 tokens. 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 2026-08-30.