0559GitHub
Hippo Memory: rerank recalled memories with Jev
An opt-in Jev reranker scores candidate memories from a local SQLite store before selected evidence reaches a coding agent.
The public reranker and evaluation write-up were inspected on October 1, 2026. On a private 300-query store, the author reports recall at rank one rising from 0.41 to 0.62 versus a local cross-encoder. Three answer-quality tests on a 150-question LongMemEval set did not show better answer rates; two Jev-ranked memories answered as well as five locally ranked memories. The hosted reranker is optional and off by default. Results have not been independently reproduced.
kitfunso/hippo-memoryREADME ↗
# 🦛 Hippo: memory for AI agents that learns what is wrong **Hippo learns what is wrong and ranks it down.** Good memory is knowing what to forget: what turned out wrong, what got replaced, what nobody used. [](https://npmjs.com/package/hippo-memory) [](https://npmjs.com/package/hippo-memory) [](https://github.com/kitfunso/hippo-memory/actions/workflows/ci.yml) [](https://github.com/kitfunso/hippo-memory/blob/master/LICENSE) [](https://hippo-memory.com) <p align="center"> <img src="https://raw.githubusercontent.com/kitfunso/hippo-memory/master/assets/hippo-init.svg" alt="hippo init adding memory to one project" width="720"> </p> Hippo keeps your coding agents' memories in a SQLite store on your machine, with markdown mirrors you can read and commit. Search is BM25 out of the box, with no model and no network call; embeddings are an optional install. `hippo init` installs hooks for Claude Code and OpenCode, adds 2 hooks to Codex's `hooks.json` when Codex is installed (Codex runs them once you trust them in `/hooks`), and adds instructions to an existing `AGENTS.md` for Codex, Cursor, OpenClaw and Pi. Any MCP client can connect. Mark a memory wrong and it ranks lower; run `hippo supersede` and the old fact leaves recall. Zero runtime deps. Install it, then run `hippo init` inside one project. Init creates the project's `.hippo/` store and adds a block to the `CLAUDE.md` or `AGENTS.md` already there. On your machine it adds hooks for the agents it finds, such as Claude Code's in `~/.claude/settings.json`, and a daily 6:15am run. [What hippo init changes](#what-hippo-init-changes) lists all of it and the flags that skip each part. ```bash npm install -g hippo-memory && hippo init ``` Setting up every git repo under a folder in one go is a second step. The [Quick st