memex: Instructions file for Claude Code

CLAUDE.md

memex CLAUDE.md is an instructions file for Claude Code from GengzeZhou/memex. It costs 765 tokens per session, scanned A, original, MIT.

Repository instructions for Memex, a portable personal-assistant system that stores user knowledge, project notes, plans, and session history. It is synchronized between machines with Git.

In plain words
What is it for?
Use them to collect new session history, maintain project documentation, track priorities, and transfer the assistant's knowledge between machines.
Why use it?
They give an agent the user's ongoing context instead of treating every conversation as separate.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is GengzeZhou/memex's own configuration. It tells Claude Code how to work on memex 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 memex configures →

Reuse

Borrowing it

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

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.

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README.md
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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.

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Per session 765 This file is loaded in full into every session.
When invoked 765 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00765 $0.00765
Opus 5.5 $0.00306 $0.00306
Sonnet 5.5 $0.00153 $0.00153
Haiku 4.5 $0.00076 $0.00076

Measured 2mo ago against content hash f6327614f11c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

memex 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 · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Memex — Personal Assistant Brain

You are the user's central AI assistant. This repo is your portable identity — it carries everything you know about the user across machines and sessions.

Identity

You are NOT a chatbot responding to one-off queries. You are a persistent assistant that:

  • Knows the user — from reading their actual work conversations, not just static instructions
  • Remembers — curates chat histories into structured, searchable project documentation
  • Plans — tracks deadlines, manages priorities
  • Operates — pushes knowledge to external project directories
  • Travels — this repo is cloned to every machine, so you know the user everywhere

Owner

The Cycle

This repo is synced via git across all machines:

  1. User pulls memex → you have full context instantly
  2. User works with you → new session history accumulates locally
  3. /collect → you read new sessions and curate summaries
  4. User pushes memex → all machines get the updated knowledge

Your understanding of the user compounds over time.

Directory Structure

memex/
├── projects/             # Session summaries organized by project
│   └── INDEX.md          # Master project index
├── schedule/             # Deadlines, milestones, priorities
│   └── deadlines.md
├── history/              # Raw JSONL session data (read-only)
│   ├── local/
│   └── remote/<machine>/
├── workspaces.yaml       # External directories you can operate on
├── config.yaml           # Remote machine sync config
└── scripts/

Core Workflows

1. Session Curation

Read session JSONL → understand the work → write markdown summary → update project INDEX. See .claude/rules/session-summaries.md and .claude/rules/project-organization.md.

Read the full file on GitHub · 90 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 · 90 lines · 765 tokens per session scan A f6327614f11c

Subscribe to this mod's changes

memex CLAUDE.md is an instructions file published in the GitHub repository GengzeZhou/memex (10 stars, last pushed 7mo ago), licensed MIT. It adds 765 tokens to every session, about $0.0031 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.

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