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# GitHub - vshulcz/deja-vu: Memory layer for coding agents: search, MCP recall, auto-context, secret redaction, stats, share and sync over the session logs Claude Code, Codex and opencode already write.

**[Hacker News](https://daily.dev/sources/hn)** · 8 min read · 1 upvotes · 0 comments

## Summary

deja-vu is a zero-dependency Go binary that creates a memory layer for AI coding agents (Claude Code, Codex CLI, opencode) by indexing the session logs they already write to disk. It enables fast full-text search (7–9ms over gigabytes), MCP-based agent recall, automatic session-start context injection, credential redaction at index time, session sharing, and cross-machine sync. No models, no external services — everything stays local. It retroactively indexes months of existing logs without any capture step, differentiating it from memory platforms like Mem0 or Letta.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/vshulcz/deja-vu>

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---

Tags: [#golang](https://daily.dev/tags/golang), [#ai-agents](https://daily.dev/tags/ai-agents), [#cli](https://daily.dev/tags/cli), [#claude-code](https://daily.dev/tags/claude-code), [#codex](https://daily.dev/tags/codex)

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