bettermemory · Anaphase
Plain-text copy of https://anaphase.ai/bettermemory

Version 9, now in pre-release

# Never explain your codebase twice.

Memory for Claude Code, checked against your code.

## Every memory is checked.

Before your agent uses a memory, bettermemory holds it against your code and its own signed log, and reports what it finds.

A search result for a memory whose file has since been deleted[1]

```
"snippet": "The session-auth token validator lives at `src/auth/session.py` and rejects expired tokens before the request reaches the...",
"staleness_verdict": "spot_check_recommended",
"path_drift": {
  "missing": ["src/auth/session.py"]
}
```

The log check after a memory was written into the store without bettermemory[2]

```
$ bettermemory log verify
bettermemory log verify: tampered
  fold diverged
    memories: 1 unaccounted, 0 missing
      unaccounted 01M768Z9PXKQ4T7W2C5N8HBD3F
```

## It stays on your machine.

- One file: The whole store, on your disk
- One model: Your agent, and no second model
- No account: Nothing to sign up for
- No cloud: The server runs locally

## Install with one prompt.

Paste it into your agent, which installs the newest 9.0 candidate and sets it up.

The prompt

```
Install the bettermemory 9 pre-release: run `uv tool install 'bettermemory>=9.0.0rc1'`, then do the manual setup in https://github.com/0Mattias/bettermemory/blob/v9/docs/clients.md, hooks included, calling `bettermemory` where the plugin's hooks call `uvx bettermemory`. If the 8.x plugin is installed, ask me to remove it first.
```

Works with

- Claude
- Codex
- Cursor
- Gemini
- Copilot
- Cline

On Claude Code, hooks bring memory to the prompt. The other agents reach it through the tools.

The Claude Code plugin installs 8 until 9.0 is final.

Open source, MIT licensed.

[Announcement](https://anaphase.ai/blog/bettermemory-9.txt) · [Releases](https://github.com/0Mattias/bettermemory/releases) · [GitHub](https://github.com/0Mattias/bettermemory/tree/v9)

## Notes

1. From `bettermemory try` on 9.0.0rc18, 2026-11-11: a memory is stored that cites a file, the file is deleted, and the next search returns this hit. Three of its fields are shown, with the path set relative to the demo’s folder.
2. A second memory was inserted into the store file by another process, with no entry in the log; four lines of the report are shown. 9.0.0rc18, 2026-11-11. Signatures are HMAC-SHA256 under a key kept outside the store; the key is symmetric, so a process that can read it can sign ([threat model](https://github.com/0Mattias/bettermemory/blob/v9/SECURITY.md#threat-model)).