memem CLAUDE.md

memem CLAUDE.md is an instructions file for coding agents from TT-Wang/memem. It costs 3,907 tokens per session, scanned A, original, MIT.

A persistent memory and context system for Claude that stores information in Markdown files and searches it with a local database. It can recall user and project details across sessions.

In plain words
What is it for?
Use it to maintain user profiles, project conventions, reusable working rules, and recalled notes while working across multiple coding sessions.
Why use it?
It reduces the need to repeat project background, preferences, and working rules whenever a new session starts.

Instructions file

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 instructions/tt-wang/memem/claude-md
Clone the repo
git clone --depth 1 https://github.com/TT-Wang/memem

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 memem CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tt-wang/memem/claude-md.svg)](https://agentmods.dev/instructions/tt-wang/memem/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/tt-wang/memem/claude-md"><img src="https://agentmods.dev/badge/instructions/tt-wang/memem/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,907 This file is loaded in full into every session.
When invoked 3,907 The same file — it is already loaded in full.
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 $0.03907 $0.03907
Opus 5 $0.01954 $0.01954
Sonnet 5 $0.00781 $0.00781
Haiku 4.5 $0.00391 $0.00391

Measured 4d ago against content hash 8706cf63d492, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

memem 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 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.md · 198 lines

How it starts

The opening of the file, as written. The whole thing — 198 lines — stays where its author put it; the contents beside it link to each section on GitHub.

memem — Persistent Memory & Context Assembly

You have access to a persistent memory system via memem. This memory persists across sessions, self-evolves, and gets smarter over time.

Storage: Obsidian vault at ~/obsidian-brain/memem/memories/ (markdown files, single source of truth). Machine index: SQLite FTS5 at ~/.memem/search.db for fast retrieval.

Auto-recall

In auto mode, the UserPromptSubmit hook fires on every message and builds an active_memory_slice from the current query. As of v2.4.0, tool is the default mode — auto-injection is off; Claude pulls memory on demand via the MCP tools below.

For on-demand recall, use the MCP tools below.

Context model (v2.8+)

v2.8.0 replaces the L0–L3 layer system with a three-tier context model. Layers are retired — the data falsified them.

Tier 1 — Profiles (always-injected)

Profile documents at <vault>/memem/profiles/ are injected at every session start before any memory recall occurs. Two document types:

  • profile_user.md — sections: Preferences / Conventions / Environment
  • profile_<project>.md — sections: Identity / Stack & Structure / Conventions

Profiles are NOT in the retrieval corpus (you will never see them in memory_search results). Their consumer is the SessionStart hook. The miner writes to profiles via the PROFILE reconcile op; you can also populate them via --migrate-layers --apply.

Tier 2 — Working rules (procedural, citation-ranked)

At session start you receive a ## Working rules block containing type:procedural memories — failure→fix patterns and correction knowledge — ranked by citation count (last 30 days) then by recency, capped to ≤1200 chars. These are the rules you have cited most recently in your work.

Tier 3 — Episode index + on-demand retrieval

At session start you also receive a ## Episode index of up to 25 recent type:episodic memory titles. Everything else is available on demand via the recall tools below.

During the session, use the 3-tier recall workflow:

Read the full file on GitHub · 198 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. 4d ago First seen · 198 lines · 3,907 tokens per session scan A 8706cf63d492

Subscribe to this mod's changes

memem CLAUDE.md is an instructions file published in the GitHub repository TT-Wang/memem (32 stars, last pushed 2d ago), licensed MIT. It adds 3,907 tokens to every session, about $0.0195 per session on Opus 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 2026-08-30.