jevmem gives Claude Code a memory that decides in 0.30 seconds

Jevmem – automatic project memory for Claude Code, built on Jev

jevmem automatically saves decisions, constraints, bugs, and todos from Claude Code chats into a JEVMEM.md file, marking old lines superseded rather than deleting them and injecting relevant ones into the next session. It also works with Cursor and Codex. On 66 held-out turns, its median decision took 0.30 seconds versus 2.8–4.3 seconds for six current LLMs, with 98.5% save/skip accuracy and 5/5 contradictions found.

If the most accurate decision matters most, GPT-6 Astra or Claude Opus 5.5 are better, at about 40–60× the cost per decision and 9–12× the latency. jevmem is for when you want a fast, cheap decision on every message.
  1. anthuswilliams

    One interesting quirk of the AI-written READMEs these days is how they can include every detail on how it works, thoroughly document every optional flag, known limitation, experimental result, and still not communicate the essence of the project and the problem it solves.

    I have read through the project and I still don't understand what this thing is for and why it is to be preferred over the harness's native memory management tools.

  2. rafram

    > When you change your mind, the old line is marked superseded, not deleted

    To me, this seems like a design error. You're polluting context with false/outdated information (even if the LLM is instructed to ignore it). The biggest issue with the memory systems built into Claude et al. is that they're terrible at pruning old/conflicting information as the project evolves, so I'd hope a replacement would do something to improve that.

  3. joshumax

    I’m looking at the LLM-generated SECURITY.md and this thing seems to pump a LOT of information back to some place called TypeSafe AI. That and the AI-generated comments from OP here make a few red flags go up for me.

  4. alpineman

    a supercollision of 2024 hype with 2026 hype

  5. useruser125524

    I'd rather make a decision on where else to put the contents of a generated memory file than to maintain a memory layer

More from this day

2026-09-25