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Show HN: Rekal – Long-term memory for LLMs in a single SQLite file
I got tired of repeating myself to my LLM every session. rekal is an MCP server that stores memories in SQLite and retrieves them with hybrid search (BM25 + vectors + recency decay). One file, local embeddings, no API keys.
- maxbeech 7mo ago[dead]
- axeldunkel 7mo agoNice clean project - Python 3.14 as a requirement might be an issue for adoption...
- jeeybee 7mo agoThanks! You're right, that's just a relic of my dev environment. Will broaden the version requirement.
- eitanlebras 7mo agoThe hybrid search scoring is really well thought out. One question: are the 0.4/0.4/0.2 weights fixed or configurable? To me it feels like different use cases would want different balances (e.g. a coding assistant would want higher recency weights than a research tool would).
- jeeybee 7mo agoThe 0.4/0.4/0.2 weights are just based of hand wavy trail an error, will look into other options. I could make them configurable?
- eitanlebras 7mo agoI think that'd be cool, maybe just a simple config option in pyproject.toml or a .rekal/config.yml would cover most use cases: they could default to 0.4/0.4/0.2 but could be overriden.
- jeeybee 7mo agoAdded a mcp command for it, but i might add it as a comfig as well? https://github.com/janbjorge/rekal/pull/14/changes https://github.com/janbjorge/rekal/pull/14/changes
- eitanlebras 7mo agoNice! Yeah, maybe adding it as a quick config could be very helpful to embed it into Rekal's structure.
- SachitRafa 7mo agoAll memories should not decay at the same rate. these weights should be configurable !
- jeeybee 7mo agoThanks, i will look into making them configurable.
- alsetmusic 7mo agoI’m going to try this out. Curious how effective it’s been for your own use, OP? Anything particularly interesting or where it still falls over and requires tuning that you’ve observed? I find these types of projects interesting in sort of an anthropological sort of way. So far, I’ve yet to try anything that hasn’t still required a great deal of intervention to keep agents using guardrails without scolding them to do so. I guess this might force them more reliably, but I’ll need to try it and find out.
- jeeybee 7mo ago[dead]
- deleted 7mo ago[deleted]
- MrHermes 7mo ago[dead]
- anandkrshnn 7mo ago[dead]
- billhong 7mo ago[flagged]
- mergisi 7mo ago[dead]